CN106809025A - The braking recovery system of train, the control centre for train scheduling and method - Google Patents

The braking recovery system of train, the control centre for train scheduling and method Download PDF

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Publication number
CN106809025A
CN106809025A CN201610840629.6A CN201610840629A CN106809025A CN 106809025 A CN106809025 A CN 106809025A CN 201610840629 A CN201610840629 A CN 201610840629A CN 106809025 A CN106809025 A CN 106809025A
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China
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energy
train
traction networks
power station
braking
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CN201610840629.6A
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CN106809025B (en
Inventor
李道林
罗文刚
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BYD Co Ltd
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BYD Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L7/00—Electrodynamic brake systems for vehicles in general
    • B60L7/10—Dynamic electric regenerative braking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L9/00—Electric propulsion with power supply external to the vehicle
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J15/00—Systems for storing electric energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

A kind of braking recovery system the invention discloses train, the control centre for train scheduling and method, system include：Traction networks；Train, it includes electric brake；Battery；Distributor, distributor is connected with electric brake；Two-way DC/DC converters；First controller, wherein, the first controller is used to be controlled in train braking distributor and two-way DC/DC converters by braking electric energy feedback to Traction networks；The multiple energy-accumulating power stations being connected with Traction networks, energy-accumulating power station includes second controller, and second controller is used for the control energy-accumulating power station when the voltage of Traction networks is less than the first predetermined threshold value and is discharged to Traction networks；Control centre, the electricity for obtaining multiple energy-accumulating power stations, and discharge power distribution is carried out according to the electricity of multiple energy-accumulating power stations.Thus, the equilibrium of multiple energy-accumulating power station, co-ordination are can control, while the multiple energy-accumulating power stations of control are substantially discharged, are effectively prevented energy-accumulating power station from crossing and is put, it is ensured that the life-span of energy-storage battery.

Description

The braking recovery system of train, the control centre for train scheduling and method
Technical field
The present invention relates to technical field of vehicle, the braking recovery system of more particularly to a kind of train, one kind are adjusted for train The control centre of degree, braking recovery method and a kind of control method for train scheduling of a kind of train.
Background technology
With the continuous expansion of city size, traffic increasingly congestion, track train, such as light rail, subway etc. have turned into mesh The main traffic mode in preceding many cities.Train can produce substantial amounts of braking electric energy during braking, with environmental protection Theory constantly deepen, the problem that train braking electric energy is reclaimed and recycled is very urgent.Related skill existing at present Art is disclosed, and battery is set among train braking electric energy is reclaimed, and be train power supply.But produced during train braking Braking electric energy is very big, if to be absorbed by on-vehicle battery, needs to install substantial amounts of battery ON TRAINS, not only sternly Increase the weight of train again, influence the energy consumption of train operation, and also unnecessary cost can be increased.
Therefore, correlation technique needs to be improved.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.Therefore, of the invention One purpose is the braking recovery system for proposing a kind of train, and the system can realize braking the recycling and reuse of electric energy.
It is another object of the present invention to propose a kind of control centre for train scheduling.Another mesh of the invention Be the braking recovery method for proposing a kind of train.Another object of the present invention is that proposition is a kind of for train scheduling Control method.
To reach above-mentioned purpose, a kind of braking recovery system of train that one aspect of the present invention embodiment is proposed, including：Lead Draw net；Train, the train includes：Electric brake；Battery；Distributor, the distributor is connected with the electric brake, described There is node between distributor and the electric brake；Two-way DC/DC converters, one end of the two-way DC/DC converters with The battery is connected, and the other end of the two-way DC/DC converters is connected with the node；First controller, wherein, described One controller will brake electric energy feedback for controlling the distributor and the two-way DC/DC converters in the train braking To the Traction networks；Multiple energy-accumulating power stations, the multiple energy-accumulating power station is connected with the Traction networks, and the energy-accumulating power station includes the Two controllers, the second controller is used to control the energy storage electricity when the voltage of the Traction networks is less than the first predetermined threshold value Stand and discharged to the Traction networks；Control centre, the electricity for obtaining the multiple energy-accumulating power station, and according to the multiple The electricity of energy-accumulating power station carries out discharge power distribution.
The braking recovery system of the train for proposing according to embodiments of the present invention, control centre obtains the electricity of multiple energy-accumulating power stations Amount, and discharge power distribution is carried out according to the electricity of multiple energy-accumulating power stations.Thus, the controllable multiple energy storage electricity of the embodiment of the present invention Stand balanced, co-ordination, while the multiple energy-accumulating power stations of control are substantially discharged, effectively prevent energy-accumulating power station from crossing and put, it is ensured that storage The life-span of energy battery.And, energy-accumulating power station is discharged when the voltage of Traction networks is less than the first predetermined threshold value to Traction networks, from And the brownout of Traction networks is avoided, maintain the normal work of Traction networks.Also, the embodiment of the present invention can be led with effective monitoring Draw the voltage of net, protection system parts improve security of system.
To reach above-mentioned purpose, a kind of control centre for train scheduling that another aspect of the present invention embodiment is proposed, Including：Acquisition device, the electricity for obtaining the multiple energy-accumulating power stations being connected on Traction networks；Control device, for according to institute The electricity for stating multiple energy-accumulating power stations carries out discharge power distribution.
The control centre for train scheduling for proposing according to embodiments of the present invention, multiple energy storage are obtained by acquisition device The electricity in power station, and then control device carries out discharge power distribution according to the electricity of multiple energy-accumulating power stations.Thus, the present invention is implemented The controllable multiple energy-accumulating power station of example is balanced, co-ordination, while the multiple energy-accumulating power stations of control are substantially discharged, effectively prevents storage Energy power station is crossed and is put, it is ensured that the life-span of energy-storage battery.
To reach above-mentioned purpose, a kind of braking recovery method of train that another aspect of the invention embodiment is proposed, train Braking recovery system include Traction networks, train, multiple energy-accumulating power station and control centre, the train will braking electricity in braking The Traction networks can be fed back to, be the described method comprises the following steps：The energy-accumulating power station obtains the voltage of the Traction networks；It is described Energy-accumulating power station is discharged when the voltage of the Traction networks is less than the first predetermined threshold value to the Traction networks；The control centre Obtain the electricity of the multiple energy-accumulating power station；The control centre carries out discharge power according to the electricity of the multiple energy-accumulating power station Distribution.
The braking recovery method of the train for proposing according to embodiments of the present invention, control centre obtains the electricity of multiple energy-accumulating power stations Amount, and discharge power distribution is carried out according to the electricity of multiple energy-accumulating power stations.Thus, the controllable multiple energy storage electricity of the embodiment of the present invention Stand balanced, co-ordination, while the multiple energy-accumulating power stations of control are substantially discharged, effectively prevent energy-accumulating power station from crossing and put, it is ensured that storage The life-span of energy battery.And, energy-accumulating power station is discharged when the voltage of Traction networks is less than the first predetermined threshold value to Traction networks, from And the brownout of Traction networks is avoided, maintain the normal work of Traction networks.Also, the embodiment of the present invention can be led with effective monitoring Draw the voltage of net, protection system parts improve security of system.
To reach above-mentioned purpose, a kind of control method for train scheduling that further aspect of the present invention embodiment is proposed, Comprise the following steps：Acquisition is connected to the electricity of the multiple energy-accumulating power stations on Traction networks；According to the electricity of the multiple energy-accumulating power station Amount carries out discharge power distribution.
The control method for train scheduling for proposing according to embodiments of the present invention, obtains the electricity of multiple energy-accumulating power stations, And discharge power distribution is carried out according to the electricity of multiple energy-accumulating power stations.Thus, the controllable multiple energy-accumulating power station of the embodiment of the present invention Balanced, co-ordination, while the multiple energy-accumulating power stations of control are substantially discharged, effectively prevent energy-accumulating power station from crossing and puts, it is ensured that energy storage The life-span of battery.
Brief description of the drawings
Fig. 1 is the block diagram of the braking recovery system of the train according to the embodiment of the present invention；
Fig. 2 is the block diagram of the braking recovery system of the train according to one embodiment of the invention；
Fig. 3 is the circuit theory diagrams of the braking recovery system of the train according to one embodiment of the invention, wherein, Traction networks Voltage U be more than the second predetermined threshold value U2；
Fig. 4 is the circuit theory diagrams of the braking recovery system of the train according to one embodiment of the invention, wherein, Traction networks Voltage U be less than the 3rd predetermined threshold value U3；
Fig. 5 is the circuit theory diagrams of the braking recovery system of the train according to one embodiment of the invention, wherein, Traction networks Voltage U be more than the 5th predetermined threshold value U5；
Fig. 6 is the circuit theory diagrams of the braking recovery system of the train according to one embodiment of the invention, wherein, Traction networks Voltage U be less than the first predetermined threshold value U1；
Fig. 7 is the circuit theory diagrams of the braking recovery system of the train according to one embodiment of the invention, wherein, Traction networks Voltage U be less than the 7th predetermined threshold value U7；
Fig. 8 is according to a block diagram for the braking recovery system of the train of specific embodiment of the invention；
Fig. 9 is the block diagram of the braking recovery system of the train according to another specific embodiment of the invention；
Figure 10 is the block diagram of the braking recovery system of the train according to another specific embodiment of the invention；
Figure 11 is according to an operation principle schematic diagram for the braking recovery system of the train of specific embodiment of the invention；
Figure 12 is the structural representation according to train in a braking recovery system for the train of specific embodiment of the invention；
Figure 13 is the block diagram of the control centre for train scheduling according to the embodiment of the present invention；
Figure 14 is the flow chart of the braking recovery method of the train according to the embodiment of the present invention；
Figure 15 is the flow chart of the braking recovery method of the train according to one embodiment of the invention；
Figure 16 is the flow chart of the braking recovery method of the train according to another embodiment of the present invention；
Figure 17 is the flow chart of the braking recovery method according to the train of another embodiment of the invention；
Figure 18 is the flow chart of the charge-discharge electric power method for limiting of the battery of the train according to one embodiment of the invention；
Figure 19 is the flow chart of the braking recovery method according to one train of specific embodiment of the present invention；
Figure 20 is the flow chart of the braking recovery method according to the train of another specific embodiment of the invention；And
Figure 21 is the flow chart of the control method for train scheduling according to the embodiment of the present invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached It is exemplary to scheme the embodiment of description, it is intended to for explaining the present invention, and be not considered as limiting the invention.
Below with reference to the accompanying drawings describe the braking recovery system of the train of embodiment of the present invention proposition and method and be used for The control centre of train scheduling and method.
Fig. 1 is the block diagram of the braking recovery system of the train according to the embodiment of the present invention.As shown in figure 1, the row The braking recovery system of car includes：Traction networks 1, the multiple trains 2 being connected on Traction networks 1, the multiple being arranged on Traction networks 1 Energy-accumulating power station 3 and the control centre 4 for being communicated with each train 2 and each energy-accumulating power station 3 respectively.Wherein, Traction networks 1 to Multiple trains 2 provide direct current, and train 2 passes through electricity getting device power taking among Traction networks.In one embodiment of the invention, Train 2 is straddle-type monorail train.In an embodiment of the present invention can be by 3 pairs of row of the battery of train 2 or energy-accumulating power station The braking electric energy that car 2 is produced is reclaimed.For train 2, the braking electric energy of itself generation can be not only absorbed, it is also possible to Absorb the braking electric energy of other trains 2 generation.Because train 2 is when to 1 regenerative braking electric energy of Traction networks, the voltage of Traction networks 1 Can raise, therefore train 2 and energy-accumulating power station 3 can be monitored to the voltage of Traction networks 1.When the voltage of Traction networks 1 is raised, Can be absorbed by the battery of train 2 or energy-accumulating power station 3, so as to the voltage for preventing Traction networks 1 reaches rated voltage, and be gone out Existing failure.Specific absorption process, will describe in detail below in an example.In an embodiment of the present invention, train 2 Battery absorb braking electric energy can be used for illumination, air-conditioning, the multimedia electricity consumption of train 2.In other implementations of the invention In example, the braking electric energy of the battery absorption of train 2 can be also used for the emergency driving of train 2, such as when train 2 cannot be from traction Net 1 obtains electric energy, and such as Traction networks 1 break down, or, when not having Traction networks 1, train 2 can switch to battery power.At this In inventive embodiment, among energy-accumulating power station 3 can be set AT STATION, by the braking electric energy of absorption for station is powered, example It is such as the air-conditioning at station, multimedia, light is powered.In an embodiment of the present invention, energy-accumulating power station 3 is according to predeterminable range Interval setting, such as interior per 3-6 kilometers to set two energy-accumulating power stations 3, the power of each energy-accumulating power station 3 is 0.5-2MW.Certainly originally Art personnel according to the specific operating environment of train 2, can select the quantity and power of suitable energy-accumulating power station 3.In this hair In bright embodiment, control centre 4 can also dispatch energy-accumulating power station 3 for train 2 is answered when line fault occur in Traction networks 1 Anxious power supply.
As shown in Figure 1-2, the braking recovery system of the train of the embodiment of the present invention includes：Traction networks 1, train 2, energy storage electricity Stand 3 and control centre 4.
Wherein, Traction networks 1 include multiple sections；Train 2 is connected on Traction networks 1, and train 2 includes electric brake 201, electricity Pond 202, distributor 203, the controller 205 of two-way DC/DC converters 204 and first；Multiple energy-accumulating power stations 3 are connected with Traction networks 1, Energy-accumulating power station 3 includes second controller 301, and second controller 301 is used for when the voltage of Traction networks 1 is less than the first predetermined threshold value Control energy-accumulating power station 3 is discharged to Traction networks 1；Control centre 4 is used to obtain the electricity of multiple energy-accumulating power stations 3, and according to many The electricity of individual energy-accumulating power station 3 carries out discharge power distribution.
That is, control centre 4 can be communicated with obtaining the work of multiple energy-accumulating power stations 3 with multiple energy-accumulating power stations 3 State, such as dump energy, charging and discharging state etc., and control centre 4 can also be communicated with to many with multiple energy-accumulating power stations 3 Individual energy-accumulating power station 3 is controlled.
Specifically, when the voltage U of Traction networks is less than the first predetermined threshold value U1, such as during 810V, second controller 301 is controlled Energy-accumulating power station processed 3 is discharged, and now, the electric energy in circuit is flowed according to the direction that arrow shown in Fig. 6 is indicated, and train 2 is produced Braking electric energy feed back to Traction networks 1, and energy-accumulating power station 3 discharges Traction networks 1.In an embodiment of the present invention, if The more voltage that may result in Traction networks of train on Traction networks 1 declines, now in order to avoid the voltage of Traction networks 1 reach it is minimum Rated voltage is, it is necessary to control energy-accumulating power station 3 to be discharged to Traction networks 1.In one particular embodiment of the present invention, Traction networks There are multiple energy-accumulating power stations 3 on 1, prioritizing selection electricity energy-accumulating power station 3 high discharges to Traction networks, such as electricity energy storage electricity high 3 power for discharging of standing are big, and the power of the low electric discharge of energy-accumulating power station 3 of electricity is smaller, is put down so as to reach the electricity between energy-accumulating power station 3 Weighing apparatus.
A specific embodiment of the invention, when the electricity of energy-accumulating power station 3 is more than three power thresholds, in control The heart 4 controls energy-accumulating power station 3 with the first power discharge；When the electricity of energy-accumulating power station 3 is less than three power thresholds, control centre 4 Energy-accumulating power station 3 is controlled with the second power discharge, wherein, the second power is less than the first power.
That is, control centre 4 is stored up by being communicated with the multiple energy-accumulating power stations 3 on Traction networks 1 with obtaining each The electricity in energy power station 3 is SOC (State of Charge, state-of-charge), and then is discharged to Traction networks 1 in energy-accumulating power station 3 When, control centre 4 is judged the electricity of each energy-accumulating power station 3, energy-accumulating power station 3 of the control electricity more than the 3rd power threshold With the first larger power discharge, and electricity is controlled to be put with less second power less than the energy-accumulating power station 3 of the 3rd power threshold Electricity, so as to reach the electric quantity balancing between energy-accumulating power station 3.
As an example it is assumed that there is A energy-accumulating power station 3 on Traction networks 1, and the 1st energy storage of energy-accumulating power station 3 to i-th electricity 3 electricity of standing is respectively less than the 3rd power threshold, and the electricity of i+1 energy-accumulating power station 3 to the A energy-accumulating power station 3 is all higher than the 3rd Power threshold, then, control centre 4 controls the 1st energy-accumulating power station of energy-accumulating power station 3 to i-th 3 to be put with less second power Electricity, and control i+1 energy-accumulating power station 3 to the A energy-accumulating power station 3 with the first larger power discharge.
Thus, the braking recovery system of the train that the embodiment of the present invention is proposed, control centre obtains multiple energy-accumulating power stations Electricity, and discharge power distribution is carried out according to the electricity of multiple energy-accumulating power stations.So as to the embodiment of the present invention controllable multiple energy storage Power station is balanced, co-ordination, while the multiple energy-accumulating power stations of control are substantially discharged, effectively prevent energy-accumulating power station from crossing and puts, it is ensured that The life-span of energy-storage battery.And, energy-accumulating power station is discharged when the voltage of Traction networks is less than the first predetermined threshold value to Traction networks, So as to avoid the brownout of Traction networks, the normal work of Traction networks is maintained.Also, the embodiment of the present invention can be with effective monitoring The voltage of Traction networks, protection system parts improve security of system.
As shown in Fig. 2 being the block diagram of the braking recovery system of the train according to one embodiment of the invention.In order to It is easy to description, an energy-accumulating power station is illustrate only in this embodiment.Wherein, as shown in Fig. 2 distributor 203 and drawing electric network 1 It is connected with electric brake 201, there is node between distributor 203 and electric brake 201；One end of two-way DC/DC converters 204 It is connected with battery 202, the other end of two-way DC/DC converters 204 and the node phase between distributor 203 and electric brake 201 Even.
First controller 205 is used to be controlled in train braking distributor 203 and two-way DC/DC converters 204 by braking Electric energy feedback for example opens distributor 203 to Traction networks 1, and two-way DC/DC converters 204 are closed, so that will braking electricity Traction networks 1 can be directly fed back to.And, the first controller 205 controls two-way DC/DC converters 204 according to the voltage U of Traction networks The braking electric energy of train 2 is absorbed by battery 202.Also, in one embodiment of the invention, second controller The 301 instruction control energy-accumulating power stations 3 for being used to be issued according to the voltage U of Traction networks or control centre 4 carry out charge or discharge.Its In, energy-accumulating power station 3 may include at least one energy-storage battery and corresponding two-way DC/DC converters.In an embodiment of the present invention, As shown in Fig. 2 energy-accumulating power station 3 may include multiple 160KW-80KWh modules, the positive pole of multiple 160KW-80KWh modules is connected, and Be connected with the positive pole of Traction networks 1 by positive pole cabinet, the negative pole of multiple 160KW-80KWh modules is connected, and by negative pole cabinet with lead The negative pole for drawing net 1 is connected.
Specifically, when train 2 is braked, traction electric machine is changed into generator operating mode, electricity system from motor working condition Dynamic device 201 produces braking electric energy and braking electric energy is fed back into Traction networks 1.When the train negligible amounts on Traction networks 1 are traction Load on net 1 is smaller, or on Traction networks 1 brake train it is more when, the braking electric energy fed back on Traction networks 1 can exceed The electric energy needed for train operation on Traction networks 1, so as to cause the rising of the voltage U of Traction networks.Now, the first controller 205 The voltage U of real-time monitoring Traction networks 1, when the voltage U of Traction networks 1 is raised, preferentially controls train 2 by the first controller 205 Battery 202 absorb braking electric energy.Meanwhile, the second controller 301 of energy-accumulating power station 3 monitors the voltage U of Traction networks, if in row The voltage U of Traction networks 1 continues to raise after the battery of car 2 is absorbed, then second controller 301 controls energy-accumulating power station 3 from leading Draw the absorption electric energy of net 1 to be charged.Similarly, when the train quantity on Traction networks 1 is more, i.e., the load on Traction networks 1 is larger When, the voltage U of Traction networks 1 can be reduced, now the voltage U of the real-time monitoring Traction networks 1 of second controller 301 of energy-accumulating power station 3, when During the voltage U reductions of Traction networks 1, preferentially energy-accumulating power station 3 is controlled to be discharged to improve Traction networks 1 by second controller 301 Voltage.If the voltage U of Traction networks 1 continues to reduce, the first controller 205 also can control battery 202 and be discharged to carry The voltage of Traction networks high 1.
It should be noted that the battery 202 of train 2 can be powered for the illumination of train, air-conditioning, multimedia.Energy storage Power station 3 be may be provided among station, and the braking electric energy for reclaiming is used to be supplied for illumination, air-conditioning, the multimedia at station etc. Electricity.So, braking electric energy can be for recycling and reuse by battery 202 and energy-accumulating power station 3, while power transformation can be reduced The load stood, has saved the energy.
Also, it should be noted that battery 202 is arranged on train 2, the braking electric energy of train generation can be quickly absorbed, by In the distance between energy-accumulating power station 3 and train 2 farther out, energy-accumulating power station 3 is caused to absorb braking electric energy delayed.Therefore, in the present invention Embodiment in prioritizing selection battery 202 absorb braking electric energy, with realize brake electric energy quick absorption, so as to prevent not inhaled Receive or the braking electric energy of consumption causes the voltage U of Traction networks to raise, protect the parts of system, it is to avoid on Traction networks 1 Electrical equipment is damaged, and improves the security of system.
Another specific embodiment of the invention, if it is Traction networks 1 there was only the operation of rows of cars 2 on Traction networks 1 It is upper to absorb braking electric energy without other trains, and the braking electric energy that the braking of train 2 is produced is larger, then brake electric energy main by energy storage Power station 3 absorbs, and for example the control of the first controller 205 battery 202 absorbs the 30% of braking electric energy first, then second controller 301 control energy-accumulating power stations 3 absorb the 70% of braking electric energy, to complete the recovery of braking electric energy.
Another specific embodiment of the invention, if there is multiple row train 2 to run on Traction networks 1, and in energy storage electricity Stand after 3 absorption braking electric energy, the voltage U of Traction networks 1 continues to raise, then can be by the non-brake train on Traction networks 1 Charged to the battery 202 of non-brake train.Assuming that the braking electric energy for not absorbed or being consumed on Traction networks 1 is Q ＇, traction There are N row trains on net 1, then the average value of the braking electric energy that the battery 202 of each train absorbs on Traction networks 1 is Q ＇/N.At this In inventive embodiment, because the braking electric energy that train braking is produced is very big, such as shown in table 1, it can be seen that in AW2 and The braking electric energy more than 220KW can be produced under the operating mode of AW3.If the braking electric energy trains of now these instantaneous generations On-vehicle battery is absorbed, then the on-vehicle battery of train can be caused very big.Therefore in an embodiment of the present invention, for such Situation is combined using battery and energy-accumulating power station and absorbed, so as to avoid that substantial amounts of battery is set on train.
Table 1
Thus, the embodiment of the present invention absorbs braking electric energy by controlling battery and energy-accumulating power station on train, realizes system The recycling and reuse of electrokinetic energy, reduce energy waste, reduce the load of Traction networks.Also, the embodiment of the present invention can be with The voltage of effective monitoring Traction networks, protection system parts improve security of system.
The concrete operating principle of the braking recovery system of the train of the embodiment of the present invention is analyzed below with reference to Fig. 3-7.
According to one embodiment of present invention, as shown in figure 3, when the voltage U of Traction networks is more than the second predetermined threshold value U2, example During such as 845V, the first controller 205 controls two-way DC/DC converters 204 to enter charge mode so that battery 202 absorbs braking electricity Energy.Now, the electric energy in circuit flows according to the direction that arrow shown in Fig. 3 is indicated, wherein, the braking electric energy that train 2 is produced is anti- Traction networks 1 are fed to, and the battery 202 of train 2 absorbs braking electric energy.In an embodiment of the present invention, when the first controller 205 When controlling two-way DC/DC converters 204 to enter charge mode, on high-tension side DC power conversion is by two-way DC/DC converters 204 With the direct current of the voltage matches of battery 202, to be charged to battery 202, i.e. control battery 202 absorbs braking electric energy；When When one controller 205 controls two-way DC/DC to enter discharge mode, two-way DC/DC converters 204 are used for provide battery 202 Direct current is changed into the direct current with the voltage matches of Traction networks 1, will be stored up in battery 202 with controlling battery 202 to carry out electric discharge The braking electric energy deposited feeds back to Traction networks 1.
According to one embodiment of present invention, as shown in figure 4, battery 202 start absorb braking electric energy after, Traction networks Such as 1 voltage can decline, and when the voltage U of Traction networks 1 is less than the 3rd predetermined threshold value U3, during 830V, the first controller 205 is controlled Two-way DC/DC converters 204 close so that battery 202 stop absorb braking electric energy, wherein, the 3rd predetermined threshold value U3 be less than second Predetermined threshold value U2.Now, the electric energy in circuit flows according to the direction that arrow shown in Fig. 4 is indicated, the braking electric energy that train 2 is produced Traction networks 1 are fed back to, and the battery 202 and energy-accumulating power station 3 of train 2 do not absorb braking electric energy.
Specifically, as shown in Figures 3 and 4, when train 2 is braked, braking electric energy feeds back to Traction networks 1, the first control The voltage U of the real-time monitoring Traction networks of device processed 205, if the voltage U of Traction networks is more than the second predetermined threshold value U2, such as 845V, says The bright braking electric energy now fed back on Traction networks 1 is superfluous, then the first controller 205 controls two-way DC/DC converters 204 to work In charge mode so that braking electric energy to be charged as battery 202.Now, the braking electric energy that train 2 is produced is fed back by distributor 203 To Traction networks 1, while being charged to battery 202 by two-way DC/DC converters 204, i.e., absorbing part by battery 202 makes Electrokinetic energy.If the voltage U of Traction networks is less than the 3rd predetermined threshold value U3 such as 830V afterwards, illustrate now to feed back to Traction networks 1 On braking electric energy and Traction networks 1 on load request basically reached balance, then the first controller 205 controls two-way DC/DC Converter 204 is closed.Now, control battery 202 stops absorbing braking electric energy, and the braking electric energy that train 2 is produced passes through distributor 203 feed back to Traction networks 1.
The battery 202 of embodiment of the present invention prioritizing selection train 2 absorbs braking electric energy, to realize braking the quick suction of electric energy Receive, so that, prevent the braking electric energy not consumed from causing the voltage U of Traction networks to raise, it is to avoid the device failure on Traction networks 1.
According to one embodiment of present invention, as shown in figure 5, when Traction networks 1 voltage U be more than the 5th predetermined threshold value U5, For example during 855V, the control energy-accumulating power station 3 of second controller 301 is charged.Now, the electric energy in circuit is according to arrow shown in Fig. 5 The direction flowing that head is indicated, the braking electric energy that train 2 is produced feeds back to Traction networks 1, and train 2 battery 202 and energy storage electricity Electric energy is braked in 3 absorptions of standing.In an embodiment of the present invention, when the battery of train 2 start absorb braking electric energy when, now due to Train on Traction networks 1 is less, or the train 2 now braked is more, therefore the voltage of Traction networks 1 can also continue to increase.When When the voltage U of Traction networks 1 is more than the 5th predetermined threshold value U5, control energy-accumulating power station 3 absorbs electric energy and is charged from Traction networks 1, from And avoid the voltage of Traction networks from reaching maximum rated voltage.
Similarly, according to one embodiment of present invention, as previously shown, when the voltage U of Traction networks is less than the first default threshold When value U1, such as 810V, the control energy-accumulating power station 3 of second controller 301 is discharged.Also, there are multiple energy storage on Traction networks 1 Power station 3, prioritizing selection electricity energy-accumulating power station 3 high discharges to Traction networks, the power of such as electricity electric discharge of energy-accumulating power station 3 high Greatly, the power of the low electric discharge of energy-accumulating power station 3 of electricity is smaller, so as to reach the electric quantity balancing between energy-accumulating power station 3.
According to one embodiment of present invention, after energy-accumulating power station 3 discharges to Traction networks 1, when the voltage U of Traction networks is big When the 6th predetermined threshold value U6, the control energy-accumulating power station 3 of second controller 301 stops electric discharge, wherein, the 6th predetermined threshold value U6 is more than 5th predetermined threshold value U5.
According to one embodiment of present invention, as shown in fig. 7, when Traction networks voltage U be less than the 7th predetermined threshold value U7 when, First controller 205 controls two-way DC/DC converters 204 into discharge mode so that the battery 202 of train 2 enters to Traction networks 1 Row electric discharge, wherein, the 7th predetermined threshold value U7 is less than the first predetermined threshold value U1.Now, the electric energy in circuit is according to arrow shown in Fig. 7 The direction flowing of instruction, the braking electric energy that train 2 is produced feeds back to Traction networks 1, and energy-accumulating power station 3 and battery 202 to traction Net 1 is discharged.In the present embodiment, if the voltage U of Traction networks 1 is too small, the battery of control energy-accumulating power station 3 and train 2 Discharged, so as to the voltage of Traction networks 1 quickly be improved.
Specifically, if as shown in figure 5, the train on Traction networks 1 is less, or the train 2 now braked is more, then After the battery 202 of train 2 starts to absorb braking electric energy, the voltage of Traction networks 1 continues to increase, when the voltage U of Traction networks is big When the 5th predetermined threshold value U5, such as 855V, second controller 301 controls energy-accumulating power station 3 to enter from the absorption braking electric energy of Traction networks 1 Row charges, to mitigate the pressure that battery 202 absorbs braking electric energy, so as to the voltage U for avoiding Traction networks 1 exceedes Traction networks 1 most Big rated voltage Un.If as shown in fig. 6, the more voltage that may result in Traction networks of train on Traction networks 1 declines, working as traction The voltage U of net 1 is less than the first predetermined threshold value U1, such as during 810V, the control energy-accumulating power station 3 of second controller 301 enters to Traction networks 1 Row electric discharge.
Further, after energy-accumulating power station 3 discharges to Traction networks 1, the voltage U of Traction networks gos up, second controller 301 Continue the voltage U of monitoring Traction networks, when the voltage U of Traction networks is more than the 6th predetermined threshold value U6, such as during 830V, illustrate now anti- The braking electric energy being fed on Traction networks 1 has basically reached balance with the load on Traction networks 1, then the control of second controller 301 storage Can the stopping electric discharge of power station 3.
Further, if as shown in fig. 7, the train quantity on Traction networks 1 is more, carried out in control energy-accumulating power station 3 After electric discharge, the voltage U of Traction networks may proceed to reduce, when the voltage U of Traction networks is less than the 7th predetermined threshold value U7, the second control The control energy-accumulating power station 3 of device 301 is discharged to Traction networks 1, meanwhile, the first controller 205 controls two-way DC/DC converters 204 Into discharge mode so that the battery 202 of train 2 is discharged to Traction networks 1, so as to the voltage of Traction networks 1 quickly be improved. Wherein, the discharge power of battery 202 is that the maximum allowable discharge power of battery 202 and the maximum of two-way DC/DC converters 204 permit Perhaps the smaller value in discharge power.
According to one embodiment of present invention, energy-accumulating power station 3 can be multiple, and multiple energy-accumulating power stations 3 are according between predeterminable range Every setting.In an embodiment of the present invention, it is car with the braking electric energy that will be absorbed among energy-accumulating power station 3 can be set AT STATION Station is powered, and for example, the air-conditioning at station, multimedia, light etc. are powered.
According to one embodiment of present invention, interior per 3-6 kilometers two energy-accumulating power stations 3, the power of energy-accumulating power station 3 can be set Can be 0.5-2MW.Wherein, those skilled in the art can select suitable energy-accumulating power station 3 according to the specific operating environment of train 2 Quantity and power.
According to one embodiment of present invention, as shown in figure 8, train 2 also includes：Coulometric detector 206, wherein, electricity Detector 206 is used to detect the electricity of battery 202, wherein, when battery 202 absorbs braking electric energy, if the electricity of battery 202 Q be more than the first power threshold Q1, such as 80%, then the first controller 205 control two-way DC/DC converters 204 to close so that electricity Pond 202 stops absorbing braking electric energy.In an embodiment of the present invention, the charge power and discharge power of battery 202 are restricted, The electricity after braking electric energy is absorbed of battery 202 can increase, if the electricity of battery 202 is excessive, can influence the use longevity of battery 202 Life, when electricity Q is more than the first power threshold Q1, controls two-way DC/DC converters 204 to close, to control battery 202 to stop inhaling Receive braking electric energy.
According to one embodiment of present invention, when battery 202 is discharged to Traction networks 1, if the electricity of battery 202 Q be less than the second power threshold Q2, such as 50%, then the first controller 205 control two-way DC/DC converters 204 to close so that electricity Pond 202 stops electric discharge.In an embodiment of the present invention, electricity can reduce battery 202 after discharge, when electricity Q is less than second During power threshold Q2, two-way DC/DC converters 204 are controlled to close, to control battery 202 to stop electric discharge.
Specifically, the charge power and discharge power of battery 202 are restricted, and battery is controlled in the first controller 205 202 when carrying out discharge and recharge, by electricity SOC (the State of Charge, lotus of the real-time detection battery 202 of coulometric detector 206 Electricity condition), and determine whether that battery 202 carries out discharge and recharge according to the electricity Q of battery 202.
Specifically, when battery 202 absorbs braking electric energy, the first controller 205 judges whether the electricity Q of battery 202 is big In the first power threshold Q1 such as 80%, if the electricity Q of battery 202 is more than 80%, by the maximum allowable charging of battery 202 Power limit is 0, now controls two-way DC/DC converters 204 to close, and braking electric energy is absorbed to control battery 202 to stop；If The electricity of battery 202 is less than or equal to 80%, then two-way DC/DC converters 204 keep it turned on to control battery 202 to continue to absorb system Electrokinetic energy.
Further, when battery 202 is discharged to Traction networks 1, the first controller 205 judges the electricity Q of battery 202 Whether the second power threshold Q2 such as 50% is less than, if the electricity Q of battery 202 is less than 50%, the maximum of battery 202 is permitted Perhaps discharge power is limited to 0, and now, the first controller 205 controls two-way DC/DC converters 204 to close to control battery 202 to stop Only discharge.
According to one embodiment of present invention, as shown in figure 9, train 2 also includes：Mechanical brake 207, wherein, machinery Brake 207 is used to carry out mechanical braking to train 2.
According to one embodiment of present invention, after battery 202 absorbs braking electric energy, when the voltage U of Traction networks is more than During the 4th predetermined threshold value U4,205 control machinery brake of the first controller 207 starts cooperation electric brake 201 to be carried out to train 2 Braking, wherein, the 4th predetermined threshold value U4 is more than the second predetermined threshold value U2.In an embodiment of the present invention, if on Traction networks 1 Train is less, or the train now braked is more, then after battery 202 and energy-accumulating power station 3 absorb braking electric energy, Traction networks 1 voltage U may proceed to increase, and when the voltage of Traction networks 1 is more than the 4th predetermined threshold value U4, control machinery brake 207 starts, Auxiliary braking is carried out with to train 2.
Specifically, after battery 202 and energy-accumulating power station 3 absorb braking electric energy, the voltage U of Traction networks may proceed to increase Plus, the voltage U of the real-time monitoring Traction networks of the first controller 205, if the voltage U of Traction networks is more than the 4th predetermined threshold value U4, The control machinery brake 207 of first controller 205 starts, and so, mechanical braking is passed through while electric braking is carried out to train 2 Auxiliary braking is carried out to train 2, to reduce the braking electric energy of the generation of train 2, so as to the voltage U for avoiding Traction networks reaches maximum Determine voltage, and precisely quick parking can be realized.
It should be noted that when the travel speed of train 2 is less than 5Km/h or needs inlet parking, can equally control Mechanical brake processed 207 is opened and braked with to train 2.
According to one embodiment of present invention, as shown in Figure 10, train 2 also includes：Contactor detector 208, wherein, connect Tentaculum detector 208 is used to detect whether the contactor of train disconnects, wherein, after detecting contactor and disconnecting, the first control Device processed 205 controls two-way DC/DC converters 204 into discharge mode so that battery 202 is powered for train 2, and controls train 2 to limit Power operation.
Specifically, when contactor detector 208 detects contactor to be disconnected, illustrate that train 2 is in abnormal electrical power supply shape State, the first controller 205 judges that train 2 enters emergency driving pattern, and sends emergent traction signal, to control two-way DC/DC Converter 204 enters discharge mode, and now, battery 202 is train power supply.Meanwhile, the control battery 202 of the first controller 205 Discharge power is less than or equal to predetermined power threshold value such as 70KW, so that train 2 operates in limit power rating.
Thus, the emergency driving of train is realized by battery 202, it is to avoid the train scheduling for causing of casting anchor on the way is difficult Problem, while avoiding failure train occupation working line.
A specific embodiment of the invention, train 2 can be straddle-type monorail train.
According to one embodiment of present invention, as shown in figure 12, train 2 also includes：Bogie 20 and car body 30, wherein, Bogie 20 is suitable to straddle seat on track girder；Car body 30 is connected with bogie 20 and is drawn by bogie 20 and travelled along track girder.
According to one embodiment of present invention, as shown in figure 12, bogie 20 includes：Bogie frame 21, travelling wheel 22, Power set 23 and horizontal wheels 24, wherein, bogie frame 21 is suitable to straddle seat on track girder and is connected with car body 30；Travelling wheel 22 are pivotably mounted on bogie frame 21 and coordinate on the upper surface of track girder；Power set 23 are arranged on bogie It is connected on framework 21 and with travelling wheel 22；Horizontal wheels 24 are pivotably mounted on bogie frame 21 and coordinate in track On the side surface of beam.
According to one embodiment of present invention, as shown in figure 12, bogie 20 also includes:Draw-gear 25 and supported and suspended Device 26, wherein, draw-gear 25 is arranged on bogie frame 21 and is connected with car body 30；Supported and suspended device 26 is arranged on It is connected on bogie frame 21 and with car body 30.
As described above, as shown in figure 11, so that the voltage class of Traction networks is as 750VDC as an example, the braking of the embodiment of the present invention The recycling and reuse of electric energy it is tactful specific as follows：
One) recovery of electric energy is braked
According to one embodiment of present invention, in train braking, voltage, the electricity of on-vehicle battery 202 according to Traction networks The quantity of the train 2 in amount and Traction networks 1 carrys out the comprehensive distribution for carrying out braking electric energy, braking electric energy feed back to Traction networks 1 it Afterwards, consumption absorption first is carried out by other vehicles on train, superfluous braking electric energy preferentially controls battery by the first controller 205 202 are absorbed, and when on-vehicle battery 202 cannot absorb or absorbability is limited, energy-accumulating power station are controlled by second controller 301 3 are absorbed.
Specifically, as shown in figure 11, when being braked to train 2, braking electric energy feeds back to Traction networks, first determines whether battery Whether 202 electricity Q is less than or equal to the first power threshold Q1, if electricity Q is less than or equal to the first power threshold Q1, battery 202 can absorb braking electric energy, now, the voltage U of the real-time monitoring Traction networks of the first controller 205, if the row on Traction networks 1 Car negligible amounts are that the load on Traction networks 1 is smaller, or the train braked on Traction networks 1 is more, can cause the electricity of Traction networks Such as the rising of pressure, when the voltage U of Traction networks 1 is more than the second predetermined threshold value U2, during 845V, controls the battery 202 of train 2 to absorb Braking electric energy；If the voltage U of Traction networks 1 continues to raise after the battery of train 2 is absorbed, as the voltage U of Traction networks More than the 5th predetermined threshold value U5, such as during 855V, the control energy-accumulating power station 3 of second controller 301 absorbs braking electric energy.In the present invention Embodiment in, after control battery 202 and energy-accumulating power station 3 absorb braking electric energy, the voltage U of Traction networks 1 can be reduced, when leading Draw the voltage U of net 1 less than or equal to the 3rd predetermined threshold value U3, such as during 830V, control battery 202 and energy-accumulating power station 3 stop absorbing Braking energy.
That is, as shown in figure 11, when the voltage U of Traction networks reaches the 5th predetermined threshold value U5, controlling energy-accumulating power station 3 Start to absorb braking electric energy；When the voltage U of Traction networks is less than the 5th predetermined threshold value U5 more than the second predetermined threshold value U2, control electricity Pond 202 absorbs braking electric energy；When the voltage U of Traction networks is less than the 3rd predetermined threshold value U3, braking electric energy only feeds back to Traction networks 1。
Two) recycling of electric energy is braked
Train 2 start to walk or Traction networks 1 on run train it is more when, the voltage U of Traction networks 1 can be reduced, now will The braking electric energy that battery 202 and energy-accumulating power station 3 are reclaimed is discharged on Traction networks 1 electric energy loss that can supplement Traction networks 1.Specifically Whether ground, first determine whether the electricity Q of battery 202 more than or equal to the second power threshold Q2, if electricity Q is more than or equal to the second electricity Threshold value Q2, then battery 202 can be discharged, now, the voltage U of the real-time monitoring Traction networks of second controller 301 works as Traction networks Voltage U be less than the first predetermined threshold value U1, such as during 810V, control energy-accumulating power station 3 discharged.Further, the first control Whether device 205 monitors the voltage U of Traction networks, and judges the voltage U of Traction networks less than the 7th predetermined threshold value U7, if the first control Device 205 judges whether the voltage U of Traction networks is less than the 7th predetermined threshold value U7, then the control of second controller 301 energy-accumulating power station 3 is carried out Electric discharge, meanwhile, the first controller 205 control two-way DC/DC converters 204 to enter discharge mode so that train 2 battery 202 to Traction networks 1 are discharged.
In addition, when Traction networks 1 occur power supply trouble, battery 202 can be controlled to enter discharge mode, to realize row The emergency driving of car 2.
So, the braking power consumption absorbed in battery 202 and energy-accumulating power station 301 can be fallen, in order to the He of battery 202 Energy-accumulating power station 301 proceeds the recovery of braking energy, saves operation cost.
To sum up, the braking recovery system of the train for proposing according to embodiments of the present invention, control centre obtains multiple energy storage electricity The electricity stood, and discharge power distribution is carried out according to the electricity of multiple energy-accumulating power stations.So as to the controllable multiple of the embodiment of the present invention Energy-accumulating power station is balanced, co-ordination, while the multiple energy-accumulating power stations of control are substantially discharged, effectively prevent energy-accumulating power station from crossing and puts, Ensure the life-span of energy-storage battery.And, the first controller controls distributor and two-way DC/DC converters in train braking by system Electrokinetic energy feeds back to Traction networks, and controls two-way DC/DC converters to pass through braking of the battery to train according to the voltage of Traction networks Electric energy is absorbed, and when the voltage of Traction networks continues to raise, recycles energy-accumulating power station to be absorbed.Additionally, energy-accumulating power station is also Traction networks can be discharged according to the voltage of Traction networks, so as to avoid the brownout of Traction networks, maintain Traction networks just Often work.In embodiments of the present invention, braking electric energy is first fed back into Traction networks when train is braked, if now drawn Online train is relatively more, then the braking electric energy for feeding back can uniformly be arrived into other trains, therefore the voltage of Traction networks will not be raised A lot.If instead the train now on Traction networks is less, or the train now braked is more, then the voltage of Traction networks will Raise, in embodiments of the present invention, preferentially absorbed using on-vehicle battery, if the Traction networks after on-vehicle battery absorption Voltage continues to raise, then reuse energy-accumulating power station and absorbed.Because on-vehicle battery is just arranged on train, therefore preferentially adopt Absorbed with battery, it is to avoid braking electric energy occur excessive, it is impossible to be rapidly absorbed or consume, so as to cause the electrical equipment of Traction networks The problem being burned out.The embodiment of the present invention is absorbed by the battery and energy-accumulating power station on train to braking electric energy, so that real Show the recycling and reuse of braking electric energy, reduced energy waste, reduce the load of Traction networks.Also, the embodiment of the present invention Security of system can be improved with the voltage of effective monitoring Traction networks, protection system parts.
Figure 13 is the block diagram of the control centre for train scheduling according to the embodiment of the present invention.Such as Figure 13 institutes Show, the control centre 4 for the scheduling of train 2 includes：Acquisition device 402 and control device 403.
Wherein, acquisition device 402 is used to obtain the electricity of the multiple energy-accumulating power stations 3 being connected on Traction networks；Control device 403 carry out discharge power distribution according to the electricity of multiple energy-accumulating power stations.
That is, acquisition device 402 can be communicated with obtaining the work of multiple energy-accumulating power stations 3 with multiple energy-accumulating power stations 3 Make state, such as dump energy, charging and discharging state etc., and control device 403 can also be communicated with multiple energy-accumulating power stations 3 with Multiple energy-accumulating power stations 3 are controlled.
Specifically, when the voltage U of Traction networks is less than the first predetermined threshold value U1, such as during 810V, energy-accumulating power station 3 is put Electricity, now, the braking electric energy that train 2 is produced feeds back to Traction networks, and energy-accumulating power station 3 discharges Traction networks.In the present invention Embodiment in, if the more voltage that may result in Traction networks of train on Traction networks declines, now in order to avoid Traction networks Voltage reach minimum rated voltage, it is necessary to control energy-accumulating power station 3 to be discharged to Traction networks.It is specific real at one of the invention Apply in example, there are multiple energy-accumulating power stations 3 on Traction networks, prioritizing selection electricity energy-accumulating power station 3 high discharges to Traction networks, for example electricity The power of the amount electric discharge of energy-accumulating power station 3 high is big, and the power of the low electric discharge of energy-accumulating power station 3 of electricity is smaller, so as to reach energy-accumulating power station 3 Between electric quantity balancing.
A specific embodiment of the invention, when the electricity of energy-accumulating power station 3 is more than three power thresholds, control dress 403 control energy-accumulating power stations 3 are put with the first power discharge；When the electricity of energy-accumulating power station 3 is less than three power thresholds, control device 403 control energy-accumulating power stations 3 with the second power discharge, wherein, the second power is less than the first power.
That is, acquisition device 402 is communicated to obtain each by with the multiple energy-accumulating power stations 3 on Traction networks 1 The electricity of energy-accumulating power station 3 is SOC (State of Charge, state-of-charge), and then is put to Traction networks in energy-accumulating power station 3 When electric, control device 403 is judged the electricity of each energy-accumulating power station 3, and the control electricity of control device 403 is more than the 3rd electricity The energy-accumulating power station 3 of threshold value with the first larger power discharge, and control electricity less than the 3rd power threshold energy-accumulating power station 3 with compared with The second small power discharge, so as to reach the electric quantity balancing between energy-accumulating power station 3.
As an example it is assumed that there is A energy-accumulating power station 3 on Traction networks 1, and the 1st energy storage of energy-accumulating power station 3 to i-th electricity 3 electricity of standing is respectively less than the 3rd power threshold, and the electricity of i+1 energy-accumulating power station 3 to the A energy-accumulating power station 3 is all higher than the 3rd Power threshold, then, control device 403 controls the 1st energy-accumulating power station of energy-accumulating power station 3 to i-th 3 with less second power Electric discharge, and control i+1 energy-accumulating power station 3 to the A energy-accumulating power station 3 with the first larger power discharge.
To sum up, the control centre for train scheduling for proposing according to embodiments of the present invention, obtains many by acquisition device The electricity of individual energy-accumulating power station, and then control device carries out discharge power distribution according to the electricity of multiple energy-accumulating power stations.Thus, this hair The controllable multiple energy-accumulating power station of bright embodiment is balanced, co-ordination, while the multiple energy-accumulating power stations of control are substantially discharged, effectively Prevent from energy-accumulating power station from crossing to put, it is ensured that the life-span of energy-storage battery.
Figure 14 is the flow chart of the braking recovery method of train according to embodiments of the present invention.The braking recovery system of train Including Traction networks, train, multiple energy-accumulating power stations and control centre, train will brake electric energy feedback to the traction in braking Net.As shown in figure 14, the braking recovery method is comprised the following steps：
S1：Energy-accumulating power station obtains the voltage of Traction networks.
S2：Energy-accumulating power station is discharged when the voltage of Traction networks is less than the first predetermined threshold value to Traction networks.
S3：Control centre obtains the electricity of multiple energy-accumulating power stations.
S4：Control centre carries out discharge power distribution according to the electricity of multiple energy-accumulating power stations.
That is, control centre can be communicated with obtaining the work shape of multiple energy-accumulating power stations with multiple energy-accumulating power stations State, such as dump energy, charging and discharging state etc., and control centre can also be communicated with multiple energy-accumulating power stations with to multiple store up Energy power station is controlled.
Specifically, when the voltage U of Traction networks is less than the first predetermined threshold value U1, such as during 810V, control energy-accumulating power station enters Row electric discharge, now, the electric energy in circuit flows according to the direction that arrow shown in Fig. 6 is indicated, the braking electric energy feedback that train is produced Traction networks are discharged to Traction networks, and energy-accumulating power station.In an embodiment of the present invention, if the train on Traction networks is more The voltage that may result in Traction networks declines, now in order to avoid the voltage of Traction networks reaches minimum rated voltage, it is necessary to control storage Discharged to Traction networks in energy power station.In one particular embodiment of the present invention, there are multiple energy-accumulating power stations on Traction networks, it is excellent First selection electricity energy-accumulating power station high discharges to Traction networks, and the power of such as electricity energy-accumulating power station electric discharge high is big, and electricity is low The power of energy-accumulating power station electric discharge is smaller, so as to reach the electric quantity balancing between energy-accumulating power station.
A specific embodiment of the invention, the electricity according to multiple energy-accumulating power stations carries out discharge power distribution, bag Include：When the electricity of energy-accumulating power station is more than three power thresholds, control centre controls energy-accumulating power station with the first power discharge；Work as storage When the electricity in energy power station is less than three power thresholds, control centre controls energy-accumulating power station with the second power discharge, wherein, the second work( Rate is less than the first power.
That is, control centre obtains each energy storage electricity by being communicated with the multiple energy-accumulating power stations on Traction networks The electricity stood i.e. SOC (State of Charge, state-of-charge), and then when energy-accumulating power station is discharged to Traction networks, control Center judged the electricity of each energy-accumulating power station, control electricity more than the 3rd power threshold energy-accumulating power station with larger the One power discharge, and control electricity less than the energy-accumulating power station of the 3rd power threshold with less second power discharge, so as to reach Electric quantity balancing between energy-accumulating power station.
As an example it is assumed that have A energy-accumulating power station on Traction networks, and the 1st energy-accumulating power station is to i-th energy-accumulating power station Electricity is respectively less than the 3rd power threshold, and i+1 energy-accumulating power station to the electricity of the A energy-accumulating power station is all higher than the 3rd electricity threshold Value, then, control centre is to control the 1st energy-accumulating power station to i-th energy-accumulating power station with less second power discharge, and is controlled I+1 energy-accumulating power station is to the A energy-accumulating power station with the first larger power discharge.
Thus, the braking recovery method of the train that the embodiment of the present invention is proposed, control centre obtains multiple energy-accumulating power stations Electricity, and discharge power distribution is carried out according to the electricity of multiple energy-accumulating power stations.So as to the embodiment of the present invention controllable multiple energy storage Power station is balanced, co-ordination, while the multiple energy-accumulating power stations of control are substantially discharged, effectively prevent energy-accumulating power station from crossing and puts, it is ensured that The life-span of energy-storage battery.And, energy-accumulating power station is discharged when the voltage of Traction networks is less than the first predetermined threshold value to Traction networks, So as to avoid the brownout of Traction networks, the normal work of Traction networks is maintained.Also, the embodiment of the present invention can be with effective monitoring The voltage of Traction networks, protection system parts improve security of system.
Further, according to one embodiment of present invention, as shown in figure 15, the braking recovery method of train also includes：
S10：Detect the voltage U of Traction networks.
S20：The voltage two-way DC/DC converters of control train according to the Traction networks are by the battery of train to train Braking electric energy is absorbed.
In addition, the braking recovery method of train also includes：Detect the voltage of Traction networks；Voltage control storage according to Traction networks Energy power station carries out charge or discharge.
Specifically, when train is braked, according to brake force generation braking electric energy, and braking electric energy is fed back to and is led Draw net.When the train negligible amounts on Traction networks are smaller load on Traction networks, or the train braked on Traction networks is more When, the electric energy needed for the braking electric energy on Traction networks can exceed the train operation on Traction networks is fed back to, so as to cause Traction networks Voltage U raise, the voltage U of real-time monitoring Traction networks, when Traction networks voltage U raise when, first control battery absorb braking Electric energy.Meanwhile, continue monitor Traction networks voltage, if control train battery absorbed after Traction networks voltage U Continue to raise, then control energy-accumulating power station to absorb braking electric energy and charged.Similarly, when the train quantity on Traction networks is more, When load i.e. on Traction networks is larger, the voltage U of Traction networks can be reduced, the voltage U of real-time monitoring Traction networks, when the electricity of Traction networks During pressure U reductions, energy-accumulating power station is controlled to be discharged to improve the voltage of Traction networks first, if the voltage U of Traction networks continues to drop It is low, then control battery to be discharged to improve the voltage of Traction networks.
It should be noted that battery is set ON TRAINS, braking electric energy can be quickly absorbed, due to energy-accumulating power station and train The distance between farther out, cause energy-accumulating power station absorb braking electric energy it is delayed.Therefore, prioritizing selection is electric in an embodiment of the present invention Pond absorbs braking electric energy, to realize braking the quick absorption of electric energy, so as to prevent the braking electric energy for not absorbed or being consumed from drawing The voltage U for playing Traction networks is raised, and protects the parts of system, it is to avoid the electrical equipment on Traction networks is damaged, and improves the peace of system Quan Xing.
Another specific embodiment of the invention, if it is do not have on Traction networks there was only rows of car operations on Traction networks There are other trains to absorb braking electric energy, and the braking electric energy that train braking is produced is larger, then brake electric energy main by energy-accumulating power station Absorb, for example control battery absorbs the 30% of braking electric energy first, then control energy-accumulating power station to absorb the 70% of braking electric energy, with Complete the recovery of braking electric energy.
Another specific embodiment of the invention, if there is multiple row train operation on Traction networks, and in energy-accumulating power station Absorb after braking electric energy, the voltage U of Traction networks continues to raise, then can be by the non-brake train on Traction networks to non-system The battery of dynamic train is charged.Assuming that the braking electric energy for not absorbed or being consumed on Traction networks is Q ＇, there are N row on Traction networks Car, then the average value of the braking electric energy that the battery of each train absorbs on Traction networks is Q ＇/N.
Thus, the embodiment of the present invention absorbs braking electric energy by controlling the battery on train, realizes returning for braking electric energy Receive and recycle, reduce energy waste, reduce the load of Traction networks.Also, the embodiment of the present invention can be led with effective monitoring Draw the voltage of net, protection system parts improve security of system.
According to one embodiment of present invention, the voltage according to Traction networks controls two-way DC/DC converters by train Battery carries out absorption and specifically includes to the braking electric energy of train：Whether the voltage of Traction networks is judged more than the second predetermined threshold value U2, Such as 845V；If the voltage of Traction networks is more than the second predetermined threshold value U2, two-way DC/DC converters are controlled to enter charge mode So that battery is inhaled states braking electric energy.Now, two-way DC/DC converters are controlled by electricity that on high-tension side DC power conversion is with battery The direct current of matching is pressed, with the i.e. control battery absorption braking electric energy that charged to battery.
In an embodiment of the present invention, if controlling two-way DC/DC to enter discharge mode, the direct current that battery is provided It is changed into the direct current with the voltage matches of Traction networks, it is anti-to control battery to carry out the braking electric energy that electric discharge will be stored in battery It is fed to Traction networks.
According to one embodiment of present invention, after control battery absorbs braking electric energy, the voltage of Traction networks can decline, The voltage two-way DC/DC converters of control according to Traction networks are absorbed by the battery of train to the braking electric energy of train also to be wrapped Include：Judge the voltage of Traction networks whether less than the 3rd predetermined threshold value U3, such as 830V；If the voltage of Traction networks is pre- less than the 3rd If threshold value U3, then battery is controlled to stop absorbing braking electric energy, wherein, the 3rd predetermined threshold value U3 is less than the second predetermined threshold value U2.
Specifically, as shown in figure 16, specifically included when being reclaimed to the braking electric energy of train by battery following Step：
S101：Train is braked, and according to brake force generation braking electric energy, and braking electric energy is fed back into traction Net.
S102：The voltage U of real-time monitoring Traction networks.
S103：Judge the voltage U of Traction networks whether more than the second predetermined threshold value U2 such as 845V.
If it is, the braking electric energy that explanation is now fed back on Traction networks is superfluous, then step S104 is performed；If not, saying The bright braking electric energy now fed back on Traction networks has basically reached balance with the load request on Traction networks, then perform step S105。
S104：Control battery absorbs partial brake electric energy.
S105：Judge the voltage U of Traction networks whether less than the 3rd predetermined threshold value U3 such as 830V.
If it is, performing step S106；If it is not, then performing step S103.
S106：Control battery stops absorbing braking electric energy, and the braking electric energy that train is produced feeds back to Traction networks.
The battery of embodiment of the present invention prioritizing selection train absorbs braking electric energy, to realize braking the quick absorption of electric energy, So as to prevent the braking electric energy not consumed from causing the voltage U of Traction networks to raise, it is to avoid the device failure on Traction networks.
According to one embodiment of present invention, to carry out charge or discharge specific for the voltage control energy-accumulating power station according to Traction networks Comprise the following steps：Judge the voltage of Traction networks whether more than the 5th predetermined threshold value U5, such as 855V；If the voltage of Traction networks More than the 5th predetermined threshold value U5, then energy-accumulating power station is controlled to be charged.In an embodiment of the present invention, in the battery of control train Absorb after braking electric energy, now because the train on Traction networks is less, or the train now braked is more, therefore Traction networks Voltage can also continue to increase.When the voltage U of Traction networks is more than the 5th predetermined threshold value U5, control energy-accumulating power station is inhaled from Traction networks Receive electric energy to be charged, so as to the voltage for avoiding Traction networks reaches maximum rated voltage.
According to one embodiment of present invention, as it was previously stated, the voltage control energy-accumulating power station according to Traction networks is charged Or electric discharge also includes：Judge the voltage of Traction networks whether less than the first predetermined threshold value U1, such as 810V；If the voltage of Traction networks Less than the first predetermined threshold value U1, then energy-accumulating power station is controlled to be discharged.Also, there are multiple energy-accumulating power stations on Traction networks, preferentially Selection electricity energy-accumulating power station high discharges to Traction networks, and the power of such as electricity energy-accumulating power station electric discharge high is big, the low storage of electricity The power of energy power station electric discharge is smaller, so as to reach the electric quantity balancing between energy-accumulating power station.
According to one embodiment of present invention, after energy-accumulating power station discharges to Traction networks, the braking recovery method of train Also include：Judge the voltage of Traction networks whether more than the 6th predetermined threshold value U6；If the voltage of Traction networks is more than the 6th default threshold Value U6, then control energy-accumulating power station to stop electric discharge, wherein, the 6th predetermined threshold value U6 is more than the 5th predetermined threshold value U5.
According to one embodiment of present invention, the braking recovery method of train also includes：Judge Traction networks voltage whether Less than the 7th predetermined threshold value U7；If the voltage of Traction networks is less than the 7th predetermined threshold value U7, two-way DC/DC converters are controlled to enter Enter discharge mode so that the battery of train is discharged to Traction networks, wherein, the 7th predetermined threshold value U7 is less than the first predetermined threshold value U1.In the present embodiment, if the voltage U of Traction networks is too small, the battery of control energy-accumulating power station and train is discharged, from And quickly improve the voltage of Traction networks.
Specifically, as shown in figure 17, in an embodiment of the present invention, control energy-accumulating power station enters to the braking electric energy of train Row specifically includes following steps when reclaiming：
S201：Monitor the voltage U of Traction networks.
S202：Judge the voltage U of Traction networks whether more than the 5th predetermined threshold value U5 such as 855V.
If it is, the braking electric energy that explanation is now fed back on Traction networks is excessive, then step S203 is performed；If It is no, then perform step S204.
S203：Control energy-accumulating power station is charged.
Specifically, braking electric energy is absorbed by energy-accumulating power station, the pressure that battery absorbs braking electric energy can be mitigated, so that The voltage U of Traction networks is avoided more than the maximum rated voltage Un of Traction networks.
S204：Judge the voltage U of Traction networks whether less than the first predetermined threshold value U1 such as 810V.
If it is, performing step S205；If it is not, then repeat step S204.
S205：Control energy-accumulating power station is discharged.
S206：Monitor the voltage U of Traction networks.
S207：Judge whether the voltage U of Traction networks gos up.
If it is, performing step S208；If it is not, then performing step S210.
S208：Judge the voltage U of Traction networks whether more than the 6th predetermined threshold value U6 such as 830V.
If it is, the load that explanation is now fed back on braking electric energy and Traction networks on Traction networks has been basically reached and put down Weighing apparatus, then perform step S209；If it is not, then repeat step 208.
S209：Control energy-accumulating power station stops electric discharge.
S210：Judge the voltage U of Traction networks whether less than the 7th predetermined threshold value U7.
If it is, performing step S211；If it is not, then repeat step S210.
S211：Control energy-accumulating power station is discharged to Traction networks, meanwhile, control battery is discharged to Traction networks.
According to one embodiment of present invention, after battery absorbs braking electric energy, the braking recovery method of train is also wrapped Include：Judge the voltage of Traction networks whether more than the 4th predetermined threshold value U4；If the voltage of Traction networks is more than the 4th predetermined threshold value U4, Then control train carries out mechanical braking and coordinates implementing electric braking and braking train, wherein, the 4th predetermined threshold value U4 is more than the Two predetermined threshold value U2.In an embodiment of the present invention, if the train on Traction networks is less, or the train now braked compared with Many, then after battery and energy-accumulating power station absorb braking electric energy, the voltage U of Traction networks may proceed to increase, when the voltage of Traction networks During more than the 4th predetermined threshold value U4, control train carries out mechanical braking, and auxiliary braking is carried out with to train.
Specifically, after battery and energy-accumulating power station absorb braking electric energy, the voltage U of Traction networks may proceed to increase, real When monitoring Traction networks voltage U, if the voltage U of Traction networks be more than the 4th predetermined threshold value U4, control train carry out mechanical system It is dynamic, so, auxiliary braking is carried out to train by mechanical braking while electric braking is carried out to train, to reduce train generation Braking electric energy, so as to the voltage U for avoiding Traction networks reaches maximum rated voltage, and precisely quick parking can be realized.
According to one embodiment of present invention, the braking recovery method of train also includes：Whether the contactor of detection train Disconnect；If detecting contactor disconnection, battery is controlled for train power supply, and control train to limit Power operation.
Specifically, when contactor disconnection is detected, illustrate that train is in abnormal electrical power supply state, judge that train enters and answer Anxious drive pattern, and emergent traction signal is sent, to control battery to be discharged, now, battery is train power supply.Meanwhile, control The discharge power of battery processed is less than or equal to predetermined power threshold value such as 70KW, so that train operation is in limit power rating.
Thus, the emergency driving of train is realized by battery, it is to avoid the cast anchor on the way scheduling that causes of train is difficult Problem, while avoiding failure train occupation working line.
According to one embodiment of present invention, the braking recovery method of train also includes：The electricity of battery is detected, and is judged Whether the electricity of battery is more than the first power threshold, such as 80%；If the electricity of battery is more than the first power threshold, control Two-way DC/DC converters are closed so that battery stops absorbing braking electric energy.In an embodiment of the present invention, the charge power of battery It is restricted with discharge power, battery electricity after braking electric energy is absorbed can increase, if the electricity of battery is excessive, can influence electricity The service life in pond, when electricity Q is more than the first power threshold Q1, control battery stops absorbing braking electric energy.
According to one embodiment of present invention, when battery is discharged to Traction networks, the braking recovery method of train is also Including：The electricity of battery is detected, and judges the electricity of battery whether less than the second power threshold, such as 50%；If battery Electricity is less than the second power threshold, then control two-way DC/DC converters to close so that battery stops electric discharge.In implementation of the invention In example, electricity can reduce battery after discharge, and when electricity Q is less than the second power threshold Q2, control battery stops electric discharge.
Specifically, the charge power and discharge power of battery are limited by the method shown in Figure 18.
S301：Judge train whether in emergency driving pattern.
If it is, repeat step S301；If it is not, then performing step S302.
S302：The electricity Q of real-time detection battery.
S303：Judge the electricity Q of battery whether more than the first power threshold Q1 such as 80%.
If it is, performing step S304；If it is not, then performing step S305.
S304：Control battery stops absorbing braking electric energy.Now, the maximum allowable charge power of battery is limited to 0.
S305：Judge the electricity Q of battery whether less than the second power threshold Q2 such as 50%.
If it is, performing step S306；If it is not, then performing step S307.
S306：Control battery stops electric discharge.Now, the maximum allowable discharge power of battery is limited to 0.
S307：Terminate.
It should be noted that step S303 and S304 are performed in battery charging process, S305 and S306 are in battery for step Performed in discharge process.
As described above, as shown in Figures 19 and 20, the specific step of the recycling and reuse of the braking electric energy of the embodiment of the present invention It is rapid as follows：
One) recovery of electric energy is braked
S401：Train is braked, and according to brake force generation braking electric energy, and braking electric energy is fed back into traction Net.
S402：Judge the electricity Q of battery whether less than or equal to the first power threshold Q1.
If it is, performing step S403；If it is not, then repeat step S402.
S403：The voltage U of real-time monitoring Traction networks.
S404：Judge the voltage U of Traction networks whether more than the second predetermined threshold value U2 such as 845V.
If it is, performing step S405；If it is not, then performing step S406.
S405：Control battery absorbs braking electric energy.
S406：Control battery does not absorb braking energy.
S407：Judge the voltage U of Traction networks whether more than the 5th predetermined threshold value U5 such as 855V.
If it is, performing step S408；If it is not, then performing step S404.
S408：Control energy-accumulating power station absorbs braking electric energy.
Two) recycling of electric energy is braked
S501：Judge the electricity Q of battery whether more than or equal to the second power threshold Q2.
If it is, performing step S502；If it is not, then repeat step S501.
S502：Monitor the voltage U of Traction networks.
S503：Judge the voltage U of Traction networks whether less than the first predetermined threshold value U1 such as 810V.
If it is, performing step S504；If it is not, then performing step S505.
S504：Control energy-accumulating power station is discharged.
S505：Control energy-accumulating power station is not discharged.
S506：Judge the voltage U of Traction networks whether less than the 7th predetermined threshold value U7.
If it is, performing step S507；If it is not, then repeat step S506.
S507：Control energy-accumulating power station is discharged to Traction networks, meanwhile, control battery is discharged to Traction networks.
In addition, when Traction networks occur power supply trouble, battery can be controlled to enter discharge mode, to realize train Emergency driving.
So, the braking power consumption absorbed in battery and energy-accumulating power station can be fallen, in order to battery and energy-accumulating power station Proceed the recovery of braking energy, save operation cost.
To sum up, the braking recovery method of the train for proposing according to embodiments of the present invention, control centre obtains multiple energy storage electricity The electricity stood, and discharge power distribution is carried out according to the electricity of multiple energy-accumulating power stations.So as to the controllable multiple of the embodiment of the present invention Energy-accumulating power station is balanced, co-ordination, while the multiple energy-accumulating power stations of control are substantially discharged, effectively prevent energy-accumulating power station from crossing and puts, Ensure the life-span of energy-storage battery.And, in embodiments of the present invention, also first train can be braked, and given birth to according to brake force Into braking electric energy, and braking electric energy is fed back into Traction networks, then monitor the voltage of Traction networks, and according to the voltage control of Traction networks Battery processed absorbs to the braking electric energy of train, continue monitor Traction networks voltage, and judge Traction networks voltage whether after Height of continuing rising, if it is determined that the voltage of Traction networks continues height, then controls energy-accumulating power station to absorb braking electric energy.Further, it is also possible to root Discharged according to the voltage control energy-accumulating power station of Traction networks, so as to avoid the brownout of Traction networks, maintained the normal of Traction networks Work.In embodiments of the present invention, braking electric energy is fed back into Traction networks first after being braked to train, and judges Traction networks On train quantity, if the train now on Traction networks is relatively more, by feed back braking electric energy uniformly arrive other trains, lead Drawing the voltage of net will not rise much higher., whereas if the train on Traction networks is less, or the train now braked is more, then The voltage of Traction networks can be raised quickly, and in an embodiment of the present invention, priority acccess control on-vehicle battery absorbs braking electric energy, if car The voltage continuation rising that energy absorption brakes Traction networks after electric energy is carried, is then controlled energy-accumulating power station to absorb and is braked electric energy.Due to car Battery is carried to be arranged on train, therefore priority acccess control battery absorbs braking electric energy, it is to avoid there is braking electric energy excessive, it is impossible to quilt It is quick to absorb or consume, so as to the problem that the electrical equipment for causing Traction networks is burned out.The embodiment of the present invention is by controlling on train Battery and energy-accumulating power station absorb braking electric energy, it is achieved thereby that the recycling and reuse of braking electric energy, reduce energy waste, drop The load of low Traction networks.Also, the embodiment of the present invention can be carried with the voltage of effective monitoring Traction networks, protection system parts Security of system high.
Figure 21 is the flow chart of the control method for train scheduling according to embodiments of the present invention.As shown in figure 21, side Method is comprised the following steps：
S100：Acquisition is connected to the electricity of the multiple energy-accumulating power stations on Traction networks.
S200：Electricity according to multiple energy-accumulating power stations carries out discharge power distribution.
That is, control centre can be communicated with obtaining the work shape of multiple energy-accumulating power stations with multiple energy-accumulating power stations State, such as dump energy, charging and discharging state etc., and control centre can also be communicated with multiple energy-accumulating power stations with to multiple store up Energy power station is controlled.
Specifically, when the voltage U of Traction networks is less than the first predetermined threshold value U1, such as during 810V, energy-accumulating power station is put Electricity, now, the braking electric energy that train is produced feeds back to Traction networks, and energy-accumulating power station discharges Traction networks.Of the invention In embodiment, if the more voltage that may result in Traction networks of train on Traction networks declines, now in order to avoid Traction networks Voltage reaches minimum rated voltage, it is necessary to control energy-accumulating power station to be discharged to Traction networks.In one of the invention specific implementation There are multiple energy-accumulating power stations in example, on Traction networks, prioritizing selection electricity energy-accumulating power station high discharges to Traction networks, and for example electricity is high Energy-accumulating power station electric discharge power it is big, the power of the low energy-accumulating power station electric discharge of electricity is smaller, so as to reach between energy-accumulating power station Electric quantity balancing.
A specific embodiment of the invention, when the electricity of energy-accumulating power station is more than three power thresholds, control storage Energy power station is with the first power discharge；When the electricity of energy-accumulating power station is less than three power thresholds, control energy-accumulating power station is with the second work( Rate is discharged, wherein, the second power is less than the first power.
That is, control centre obtains each energy storage electricity by being communicated with the multiple energy-accumulating power stations on Traction networks The electricity stood i.e. SOC (State of Charge, state-of-charge), and then when energy-accumulating power station is discharged to Traction networks, to every The electricity of individual energy-accumulating power station is judged, and controls electricity more than the energy-accumulating power station of the 3rd power threshold with the first larger power Electric discharge, and control electricity less than the energy-accumulating power station of the 3rd power threshold with less second power discharge, so as to reach energy storage electricity Electric quantity balancing between standing.
As an example it is assumed that have A energy-accumulating power station on Traction networks, and the 1st energy-accumulating power station is to i-th energy-accumulating power station Electricity is respectively less than the 3rd power threshold, and i+1 energy-accumulating power station to the electricity of the A energy-accumulating power station is all higher than the 3rd electricity threshold Value, then, control the 1st energy-accumulating power station to i-th energy-accumulating power station with less second power discharge, and control i+1 to store up Energy power station is to the A energy-accumulating power station with the first larger power discharge.
To sum up, the control method for train scheduling for proposing according to embodiments of the present invention, obtains multiple energy-accumulating power stations Electricity, and discharge power distribution is carried out according to the electricity of multiple energy-accumulating power stations.Thus, the embodiment of the present invention controllable multiple energy storage Power station is balanced, co-ordination, while the multiple energy-accumulating power stations of control are substantially discharged, effectively prevent energy-accumulating power station from crossing and puts, it is ensured that The life-span of energy-storage battery.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " up time The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or Position relationship, is for only for ease of the description present invention and simplifies description, must rather than the device or element for indicating or imply meaning With specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include at least one this feature.In the description of the invention, " multiple " is meant that at least two, such as two, three It is individual etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc. Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally；Can be that machinery connects Connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be in two elements The connection in portion or two interaction relationships of element, unless otherwise clearly restriction.For one of ordinary skill in the art For, can as the case may be understand above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be with It is the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office Combined in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area Art personnel can be tied the feature of the different embodiments or example described in this specification and different embodiments or example Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changes, replacing and modification.

Claims (35)

1. the braking recovery system of a kind of train, it is characterised in that including：
Traction networks；
Train, the train includes：
Electric brake；
Battery；
Distributor, the distributor is connected with the electric brake, has node between the distributor and the electric brake；
Two-way DC/DC converters, one end of the two-way DC/DC converters is connected with the battery, the two-way DC/DC conversion The other end of device is connected with the node；
First controller, first controller is connected with the distributor and the two-way DC/DC converters respectively, and described One controller will brake electric energy feedback for controlling the distributor and the two-way DC/DC converters in the train braking To the Traction networks；
Multiple energy-accumulating power stations, the multiple energy-accumulating power station is connected with the Traction networks, and the energy-accumulating power station includes second controller, The second controller is used to control the energy-accumulating power station to described when the voltage of the Traction networks is less than the first predetermined threshold value Traction networks are discharged；
Control centre, the electricity for obtaining the multiple energy-accumulating power station, and carried out according to the electricity of the multiple energy-accumulating power station Discharge power is distributed.
2. the braking recovery system of train as claimed in claim 1, it is characterised in that first controller leads according to The voltage for drawing net controls the distributor and the two-way DC/DC converters by the battery to the braking electric energy of the train Absorbed.
3. the braking recovery system of train as claimed in claim 2, it is characterised in that
First controller is used to control the two-way DC/DC to become when the voltage of the Traction networks is more than the second predetermined threshold value Parallel operation enters charge mode so that the battery absorbs the braking electric energy.
4. the braking recovery system of train as claimed in claim 3, it is characterised in that
First controller is used to, when the voltage of the Traction networks is less than three predetermined threshold values, control the two-way DC/DC Converter is closed so that the battery stops absorbing the braking electric energy, wherein, the 3rd predetermined threshold value is less than described second Predetermined threshold value.
5. the braking recovery system of train as claimed in claim 3, it is characterised in that the train also includes：
Coulometric detector, the coulometric detector is connected with first controller, and the coulometric detector is used to detect described The electricity of battery, wherein, when the battery absorbs the braking electric energy, first controller is used for the electricity in the battery The two-way DC/DC converters are controlled to close when amount is more than the first power threshold so that the battery stops absorbing the braking electricity Energy.
6. the braking recovery system of train as claimed in claim 3, it is characterised in that the train also includes：
Mechanical brake, for carrying out mechanical braking to train.
7. the braking recovery system of train as claimed in claim 6, it is characterised in that
After the battery absorbs the braking electric energy, first controller is used for the voltage in the Traction networks more than the During four predetermined threshold values, control the mechanical brake to start and coordinate the electric brake to brake the train, wherein, institute The 4th predetermined threshold value is stated more than second predetermined threshold value.
8. the braking recovery system of train as claimed in claim 1, it is characterised in that
The second controller is used to, when the voltage of the Traction networks is more than five predetermined threshold values, control the energy-accumulating power station to enter Row charges.
9. the braking recovery system of train as claimed in claim 8, it is characterised in that in the energy-accumulating power station to the traction After net electric discharge, the second controller is used to, when the voltage of the Traction networks is more than six predetermined threshold values, control the storage Energy power station stops electric discharge, wherein, the 6th predetermined threshold value is more than the 5th predetermined threshold value.
10. the braking recovery system of train as claimed in claim 1, it is characterised in that
First controller is used to, when the voltage of the Traction networks is less than seven predetermined threshold values, control the two-way DC/DC Converter into discharge mode so that the battery of the train is discharged to the Traction networks, wherein, the described 7th default threshold Value is less than first predetermined threshold value.
The braking recovery system of 11. trains as claimed in claim 10, it is characterised in that when the battery is to the Traction networks When being discharged, first controller is described two-way for being controlled when the electricity of the battery is less than the second power threshold DC/DC converters are closed so that the battery stops electric discharge.
The braking recovery system of 12. trains as claimed in claim 1, it is characterised in that the train also includes：
Contactor detector, the contactor detector is connected with first controller, and the contactor detector is used to examine Whether the contactor for surveying the train disconnects, wherein, first controller is used for after detecting the contactor and disconnecting, Control the distributor to close, and control the two-way DC/DC converters to enter discharge mode so that the battery is the row Car is powered, and controls the train limit Power operation.
The braking recovery system of 13. trains as claimed in claim 1, it is characterised in that the energy-accumulating power station is multiple, described Multiple energy-accumulating power stations are according to predeterminable range interval setting.
The braking recovery system of 14. trains as claimed in claim 13, it is characterised in that two institutes are set in per 3-6 kilometers Energy-accumulating power station is stated, the power of the energy-accumulating power station is 0.5-2MW.
The braking recovery system of 15. trains as claimed in claim 1, it is characterised in that the train is arranged for straddle-type monorail Car.
The braking recovery system of 16. trains as claimed in claim 15, it is characterised in that the train also includes：
Bogie, the bogie is suitable to straddle seat on track girder；
Car body, the car body is connected with the bogie and is travelled along the track girder by bogie traction.
The braking recovery system of 17. trains as claimed in claim 16, it is characterised in that the bogie includes：
Bogie frame, the bogie frame is suitable to straddle seat on the track girder and is connected with the car body；
Travelling wheel, the travelling wheel is pivotably mounted on the bogie frame and coordinates in the upper surface of the track girder On；
Power set, the power set are arranged on the bogie frame and are connected with the travelling wheel, described dynamic Power apparatus include the electric brake and driver；
Horizontal wheels, the horizontal wheels are pivotably mounted on the bogie frame and coordinate the side surface in the track girder On.
The braking recovery system of 18. trains as claimed in claim 17, it is characterised in that the bogie also includes:
Draw-gear, the draw-gear is arranged on the bogie frame and is connected with the car body；
Supported and suspended device, the supported and suspended device is arranged on the bogie frame and is connected with the car body.
The braking recovery system of 19. trains as claimed in claim 1, it is characterised in that
When the electricity of the energy-accumulating power station is more than three power thresholds, the control centre controls the energy-accumulating power station with first Power discharge；
When the electricity of the energy-accumulating power station is less than three power threshold, the control centre control the energy-accumulating power station with Second power discharge, wherein, second power is less than first power.
A kind of 20. control centres for train scheduling, it is characterised in that including：
Acquisition device, the electricity for obtaining the multiple energy-accumulating power stations being connected on Traction networks；
Control device, discharge power distribution is carried out for the electricity according to the multiple energy-accumulating power station.
21. control centres for being used for train scheduling as claimed in claim 20, it is characterised in that
When the electricity of the energy-accumulating power station is more than three power thresholds, the control device controls the energy-accumulating power station with first Power discharge；
When the electricity of the energy-accumulating power station is less than three power threshold, the control device control the energy-accumulating power station with Second power discharge, wherein, second power is less than first power.
The braking recovery method of 22. a kind of trains, it is characterised in that the braking recovery system of train includes Traction networks, train, many Individual energy-accumulating power station and control centre, the train will brake electric energy feedback in braking to the Traction networks, and methods described includes Following steps：
The energy-accumulating power station obtains the voltage of the Traction networks；
The energy-accumulating power station is discharged when the voltage of the Traction networks is less than the first predetermined threshold value to the Traction networks；
The control centre obtains the electricity of the multiple energy-accumulating power station；
The control centre carries out discharge power distribution according to the electricity of the multiple energy-accumulating power station.
The braking recovery method of 23. trains as claimed in claim 22, it is characterised in that also include：
Detect the voltage of the Traction networks；
Voltage according to the Traction networks controls the two-way DC/DC converters of the train to pass through the battery of the train to described The braking electric energy of train is absorbed.
The braking recovery method of 24. trains as claimed in claim 23, it is characterised in that the voltage control according to the Traction networks The two-way DC/DC converters are made to absorb the braking electric energy of the train by the battery of the train, including：
When the voltage of the Traction networks is more than the second predetermined threshold value, the two-way DC/DC converters are controlled to enter charge mode So that the battery absorbs the braking electric energy.
The braking recovery method of 25. trains as claimed in claim 24, it is characterised in that
When the voltage of the Traction networks is less than three predetermined threshold values, the two-way DC/DC converters are controlled to close so that described Battery stops absorbing the braking electric energy, wherein, the 3rd predetermined threshold value is less than second predetermined threshold value.
The braking recovery method of 26. trains as claimed in claim 24, it is characterised in that when the battery absorbs the braking During electric energy, methods described also includes：
Detect the electricity of the battery；
If the electricity of the battery is more than the first power threshold, the two-way DC/DC converters are controlled to close so that described Battery stops absorbing the braking electric energy.
The braking recovery method of 27. trains as claimed in claim 24, it is characterised in that absorb the braking in the battery After electric energy, methods described also includes：
Detect the voltage of the Traction networks；
When the voltage of the Traction networks is more than four predetermined threshold values, controls the mechanical brake of the train to start and coordinate described The electric brake of train is braked to the train, wherein, the 4th predetermined threshold value is more than second predetermined threshold value.
The braking recovery method of 28. trains as claimed in claim 22, it is characterised in that the voltage control according to the Traction networks Making the energy-accumulating power station carries out charge or discharge, including：
When the voltage of the Traction networks is more than five predetermined threshold values, the energy-accumulating power station is controlled to be charged.
The braking recovery method of 29. trains as claimed in claim 28, it is characterised in that led to described in the energy-accumulating power station Draw after net electric discharge, when the voltage of the Traction networks is more than six predetermined threshold values, control the energy-accumulating power station to stop electric discharge, its In, the 6th predetermined threshold value is more than the 5th predetermined threshold value.
The braking recovery method of 30. trains as claimed in claim 22, it is characterised in that
When the voltage of the Traction networks is less than seven predetermined threshold values, the two-way DC/DC converters are controlled to enter discharge mode So that the battery of the train is discharged to the Traction networks, wherein, the 7th predetermined threshold value is preset less than described first Threshold value.
The braking recovery method of 31. trains as claimed in claim 30, it is characterised in that when the battery is to the Traction networks When being discharged, if the electricity of the battery is less than the second power threshold, control the two-way DC/DC converters to close with The battery is set to stop electric discharge.
The braking recovery method of 32. trains as claimed in claim 22, it is characterised in that also include：
Detect whether the contactor of the train disconnects；
After detecting the contactor and disconnecting, control the train distributor to close, and control the two-way DC/DC to convert Device enters discharge mode so that the battery is the train power supply, and controls the train limit Power operation.
The braking recovery method of 33. trains as claimed in claim 22, it is characterised in that described according to the multiple energy storage electricity The electricity stood carries out discharge power distribution
When the electricity of the energy-accumulating power station is more than three power thresholds, the control centre controls the energy-accumulating power station with first Power discharge；
When the electricity of the energy-accumulating power station is less than three power threshold, the control centre control the energy-accumulating power station with Second power discharge, wherein, second power is less than first power.
34. a kind of control methods for train scheduling, it is characterised in that comprise the following steps：
Acquisition is connected to the electricity of the multiple energy-accumulating power stations on Traction networks；
Electricity according to the multiple energy-accumulating power station carries out discharge power distribution.
35. control methods for being used for train scheduling as claimed in claim 34, it is characterised in that described according to the multiple storage The electricity in energy power station carries out discharge power distribution, including：
When the electricity of the energy-accumulating power station is more than three power thresholds, the energy-accumulating power station is controlled with the first power discharge；
When the electricity of the energy-accumulating power station is less than three power threshold, the energy-accumulating power station is controlled to be put with the second power Electricity, wherein, second power is less than first power.
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