CN106809035A - The braking recovery system and method and train of train - Google Patents

The braking recovery system and method and train of train Download PDF

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Publication number
CN106809035A
CN106809035A CN201610841182.4A CN201610841182A CN106809035A CN 106809035 A CN106809035 A CN 106809035A CN 201610841182 A CN201610841182 A CN 201610841182A CN 106809035 A CN106809035 A CN 106809035A
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CN
China
Prior art keywords
train
traction networks
predetermined threshold
battery
threshold value
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Granted
Application number
CN201610841182.4A
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Chinese (zh)
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CN106809035B (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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Priority to CN201610841182.4A priority Critical patent/CN106809035B/en
Publication of CN106809035A publication Critical patent/CN106809035A/en
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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
    • B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M1/00—Power supply lines for contact with collector on vehicle
    • B60M1/12—Trolley lines; Accessories therefor
    • B60M1/13—Trolley wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M3/00—Feeding power to supply lines in contact with collector on vehicles; Arrangements for consuming regenerative power
    • B60M3/06—Arrangements for consuming regenerative power
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C3/00—Electric locomotives or railcars
    • B61C3/02—Electric locomotives or railcars with electric accumulators
    • 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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of 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
    • 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
    • B60L2210/00—Converter types
    • B60L2210/10—DC to DC converters
    • 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
    • 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
    • Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Power Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention discloses the braking recovery system and method and train of a kind of train, the system includes：Traction networks, train and energy-accumulating power station, wherein, energy-accumulating power station is connected with Traction networks, and energy-accumulating power station includes second controller, and second controller is used for when the voltage of Traction networks is more than the second predetermined threshold value, and control energy-accumulating power station is charged；Train includes：Electric brake；Battery；Distributor, it is connected with electric brake, between the two with node；Two-way DC/DC converters, its one end is connected with battery, and its other end is connected with node；First controller, it is used to control distributor and two-way DC/DC converters by braking electric energy feedback to Traction networks in train braking, and when the voltage of Traction networks is more than the first predetermined threshold value, controls two-way DC/DC converters to be absorbed by battery and brake electric energy.The present invention controls battery and energy-accumulating power station to absorb braking electric energy by monitoring the voltage of Traction networks, has effectively saved the energy, and efficiently controls the voltage of Traction networks, improves security.

Description

The braking recovery system and method and train of train
Technical field
The present invention relates to technical field of rail traffic, the braking recovery system of more particularly to a kind of train, one kind have should The braking recovery method of the train of system and 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 train.A further object of the present invention is to propose a kind of train Braking recovery 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 and energy-accumulating power station, wherein, the energy-accumulating power station is connected with the Traction networks, and the energy-accumulating power station includes the second control Device processed, the second controller is used to, when the voltage of the Traction networks is more than the second predetermined threshold value, control the energy-accumulating power station Charged；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, first control Device processed is connected with the distributor and the two-way DC/DC converters, and first controller is used in the train braking Controlling the distributor and the two-way DC/DC converters will brake electric energy feedback to the Traction networks, and in the traction When the voltage of net is more than the first predetermined threshold value, control the two-way DC/DC converters by the battery to the system of the train Electrokinetic energy is absorbed.
The braking recovery system of the train for proposing according to embodiments of the present invention, the first controller controls to match somebody with somebody in train braking Electrical equipment and two-way DC/DC converters feed back to Traction networks by electric energy is braked, after braking electric energy feeds back to Traction networks, Traction networks Voltage is raised, and when the voltage of Traction networks is more than the first predetermined threshold value, the first controller controls two-way DC/DC converters by electricity Pond absorbs to the braking electric energy of train, if the voltage of Traction networks continues to raise, when the voltage of Traction networks is more than second During predetermined threshold value, control energy-accumulating power station absorbs braking electric energy.In an embodiment of the present invention, first will system when train is braked Electrokinetic energy feeds back to Traction networks, now, if the train on Traction networks is relatively more, the braking electric energy of feedback can uniformly be arrived into it On his train, therefore, the voltage of Traction networks will not rise much higher., whereas if the train now on Traction networks is less, or this When the train braked it is more, then the voltage of Traction networks will be raised.In an embodiment of the present invention, preferentially inhaled using on-vehicle battery Braking electric energy is received, if after on-vehicle battery absorption braking electric energy, the voltage of Traction networks continues to raise, then reuse energy-accumulating power station Absorb braking electric energy.Because on-vehicle battery is installed ON TRAINS, therefore battery is preferentially used to be absorbed, it is to avoid braking electricity occur Can be excessive, it is impossible to be rapidly absorbed or consume, so as to the problem that the electrical equipment for causing Traction networks is burned out.The embodiment of the present invention passes through Battery and energy-accumulating power station on train absorb to braking electric energy, it is achieved thereby that the recycling and reuse of braking electric energy, subtract Lack energy waste, reduce the load of Traction networks.Also, the embodiment of the present invention can with the voltage of effective monitoring Traction networks, The parts of system are protected, the security of system is improve.
According to one embodiment of present invention, second predetermined threshold value is more than first predetermined threshold value.
According to one embodiment of present invention, first controller is used for pre- less than the 3rd in the voltage of the Traction networks If during threshold value, controlling the two-way DC/DC converters to close so that the battery stops absorbing the braking electric energy, wherein, institute The 3rd predetermined threshold value is stated less than first predetermined threshold value.
According to one embodiment of present invention, the train also includes：Coulometric detector, the coulometric detector with it is described First controller is connected, and the coulometric detector is used to detect the electricity of the battery, wherein, when the battery absorbs the system During electrokinetic energy, first controller is additionally operable to, when the electricity of the battery is more than the first power threshold, control described two-way DC/DC converters are closed so that the battery stops absorbing the braking electric energy.
According to one embodiment of present invention, the train also includes：Mechanical brake, for carrying out mechanical system to train It is dynamic.
According to one embodiment of present invention, after the battery absorbs the braking electric energy, first controller It is additionally operable to, when the voltage of the Traction networks is more than four predetermined threshold values, control the mechanical brake to start and coordinate the electricity system Dynamic device is braked to the train, wherein, the 4th predetermined threshold value is more than first predetermined threshold value.
According to one embodiment of present invention, the second controller is additionally operable to be less than the 5th in the voltage of the Traction networks During predetermined threshold value, the energy-accumulating power station is controlled to be discharged, wherein, the 5th predetermined threshold value is less than the described second default threshold Value.
According to one embodiment of present invention, after the energy-accumulating power station discharges to the Traction networks, second control Device processed is additionally operable to, when the voltage of the Traction networks is more than six predetermined threshold values, control the energy-accumulating power station to stop electric discharge, wherein, 6th predetermined threshold value is more than the 5th predetermined threshold value.
According to one embodiment of present invention, when the voltage of the Traction networks is less than seven predetermined threshold values, described second Controller controls the energy-accumulating power station to be discharged to the Traction networks, meanwhile, first controller controls the two-way DC/ DC converters into discharge mode so that the battery of the train is discharged to the Traction networks, wherein, the described 7th presets Threshold value is less than the 5th predetermined threshold value.
According to one embodiment of present invention, when the battery is discharged to the Traction networks, first control Device is additionally operable to, when the electricity of the battery is less than the second power threshold, control the two-way DC/DC converters to close so that institute State battery and stop electric discharge.
According to one embodiment of present invention, the energy-accumulating power station can be multiple, and the multiple energy-accumulating power station is according to default Apart from interval setting.
According to one embodiment of present invention, it is interior per 3-6 kilometers that two energy-accumulating power stations are set, the energy-accumulating power station Power can be 0.5-2MW.
To reach above-mentioned purpose, a kind of train that another aspect of the present invention embodiment is proposed, including：Electric brake；Battery； Distributor, the distributor is connected with the electric brake, has node between the distributor and the electric brake；It is two-way DC/DC converters, one end of the two-way DC/DC converters is connected with the battery, the two-way DC/DC converters it is another End is connected with the node；First controller, first controller and the distributor and the two-way DC/DC converters phase Even, first controller is used to be controlled in the train braking distributor and the two-way DC/DC converters by system Electrokinetic energy is fed back to the Traction networks, and when the voltage of the Traction networks is more than the first predetermined threshold value, controls described two-way DC/DC converters are absorbed by the battery to the braking electric energy of the train.
The train for proposing according to embodiments of the present invention, the first controller controls distributor and two-way DC/ in train braking DC converters feed back to Traction networks by electric energy is braked, and after braking electric energy feeds back to Traction networks, the voltage of Traction networks is raised, when leading When drawing the voltage of net more than the first default level pressure, the first controller controls two-way DC/DC converters to pass through system of the battery to train Electrokinetic energy is absorbed.In an embodiment of the present invention, braking electric energy is first fed back into Traction networks when train is braked, this Train on Shi Ruguo Traction networks is more, then the braking electric energy that can be fed back is uniform onto other trains, thus Traction networks electricity Pressure will not rise much higher., whereas if the train on Traction networks is less, or the train now braked is more, then Traction networks Voltage will be raised.In an embodiment of the present invention, battery is installed ON TRAINS, is absorbed using on-vehicle battery, to avoid There is braking electric energy excessive, it is impossible to be rapidly absorbed or consume, so as to the problem for causing the electrical equipment on Traction networks to be burned out.This hair Bright embodiment is absorbed by the battery on train to braking electric energy, it is achieved thereby that the recycling and reuse of braking electric energy, The waste of the energy is reduced, the load of Traction networks is reduced.Also, the embodiment of the present invention can be with the electricity of effective monitoring Traction networks Pressure, protects the parts of system, improves the security of system.
According to one embodiment of present invention, first controller is used for pre- less than the 3rd in the voltage of the Traction networks If during threshold value, controlling the two-way DC/DC converters to close so that the battery stops absorbing the braking electric energy, wherein, institute The 3rd predetermined threshold value is stated less than first predetermined threshold value.
According to one embodiment of present invention, described train also includes：Coulometric detector, the coulometric detector and institute State the first controller to be connected, the coulometric detector is used to detect the electricity of the battery, wherein, when the battery absorbs described During braking electric energy, first controller is additionally operable to, when the electricity of the battery is more than the first power threshold, control described double Closed to DC/DC converters so that the battery stops absorbing the braking electric energy.
According to one embodiment of present invention, the train also includes：Mechanical brake, for carrying out mechanical system to train It is dynamic.
According to one embodiment of present invention, after the battery absorbs the braking electric energy, first controller It is additionally operable to, when the voltage of the Traction networks is more than four predetermined threshold values, control the mechanical brake to start and coordinate the electricity system Dynamic device is braked to the train, wherein, the 4th predetermined threshold value is more than first predetermined threshold value.
According to one embodiment of present invention, the train can be straddle-type monorail train.
According to one embodiment of present invention, described train also includes：Bogie, it is in-orbit that the bogie is suitable to straddle seat On road beam；Car body, the car body is connected with the bogie and is travelled along the track girder by bogie traction.
According to one embodiment of present invention, the bogie includes：Bogie frame, the bogie frame be suitable to across Seat is connected on the track girder and with the car body；Travelling wheel, the travelling wheel is pivotably mounted on the steering structure On frame and coordinate on the upper surface of the track girder；Power set, the power set are arranged on the bogie frame And be connected with the travelling wheel；Horizontal wheels, the horizontal wheels are pivotably mounted on the bogie frame and coordinate On the side surface of the track girder.
According to one embodiment of present invention, the bogie also includes：Draw-gear, the draw-gear is arranged on institute State on bogie frame and be connected with the car body；Supported and suspended device, the supported and suspended device is arranged on the bogie It is connected on framework and with the car body.
To reach above-mentioned purpose, a kind of braking recovery method of train that another aspect of the invention embodiment is proposed, including Following steps：The train is braked, and according to brake force generation braking electric energy, and the braking electric energy is fed back to and leads Draw net；Monitor the voltage of the Traction networks；If the voltage of the Traction networks is more than the first predetermined threshold value, control battery is to system Electrokinetic energy is absorbed；If the voltage of the Traction networks is more than the second predetermined threshold value, control energy-accumulating power station is charged.
The braking recovery method of the train for proposing according to embodiments of the present invention, brakes to train, and according to brake force Generation braking electric energy, and braking electric energy is fed back into Traction networks, now the voltage of Traction networks can be raised, and monitor the electricity of Traction networks Pressure, if the voltage of Traction networks is more than the first predetermined threshold value, control battery absorbs braking electric energy.If control battery is inhaled After receipts, the voltage of Traction networks continues to raise, then when the voltage of Traction networks is more than the second predetermined threshold value, control energy-accumulating power station enters Row absorbs.In an embodiment of the present invention, the braking electric energy that train braking is generated is fed back into Traction networks first, if now led Draw that online train is more, then the braking electric energy that will be fed back is uniform onto other trains, therefore, the voltage of Traction networks will not rise It is much higher., whereas if the train on Traction networks is less, or the train now braked is more, then the voltage of Traction networks will Raise.In an embodiment of the present invention, priority acccess control on-vehicle battery is absorbed, if on-vehicle battery absorb braking electric energy it Afterwards, the voltage of Traction networks continues to raise, then control energy-accumulating power station to be absorbed again.Due to on-vehicle battery being set ON TRAINS, Therefore priority acccess control battery is absorbed, it is to avoid braking electric energy occur excessive, it is impossible to be rapidly absorbed or consume, so as to cause to lead Draw the problem that the electrical equipment of net is burned out.The embodiment of the present invention is inhaled by the battery and energy-accumulating power station on train to braking electric energy Receive, it is achieved thereby that the recycling and reuse of braking electric energy, reduce energy waste, reduce the load of Traction networks.Also, this Inventive embodiments can protect the parts of system with the voltage of effective monitoring Traction networks, improve the security of system.
According to one embodiment of present invention, second predetermined threshold value is more than first predetermined threshold value.
According to one embodiment of present invention, the braking recovery method of the train also includes：Judge the Traction networks Whether voltage is less than the 3rd predetermined threshold value；If the voltage of the Traction networks is less than the 3rd predetermined threshold value, control is described Battery stops absorbing the braking electric energy, wherein, the 3rd predetermined threshold value is less than first predetermined threshold value.
According to one embodiment of present invention, the braking recovery method of the train also includes：Detect the electricity of the battery Amount, and judge the electricity of the battery whether more than the first power threshold；If the electricity of the battery is more than the described first electricity Amount threshold value, then control battery to stop absorbing braking electric energy.
According to one embodiment of present invention, the braking recovery method of the train also includes：Judge the Traction networks Whether voltage is more than the 4th predetermined threshold value；If the voltage of the Traction networks is more than the 4th predetermined threshold value, then control is arranged Car carries out mechanical braking and coordinates implementation electric braking to brake the train, wherein, the 4th predetermined threshold value is more than described First predetermined threshold value.
According to one embodiment of present invention, the braking recovery method of the train also includes：Judge the Traction networks Whether voltage is less than the 5th predetermined threshold value；If the voltage of the Traction networks is less than the 5th predetermined threshold value, control is described Energy-accumulating power station is discharged, wherein, the 5th predetermined threshold value is less than second predetermined threshold value.
According to one embodiment of present invention, the braking recovery method of the train also includes：Judge the Traction networks Whether voltage is more than the 6th predetermined threshold value；If the voltage of the Traction networks is more than the 6th predetermined threshold value, control is described Energy-accumulating power station stops electric discharge, wherein, the 6th predetermined threshold value is more than the 5th predetermined threshold value.
According to one embodiment of present invention, the braking recovery method of the train also includes：Judge the Traction networks Whether voltage is less than the 7th predetermined threshold value；If the voltage of the Traction networks is less than the 7th predetermined threshold value, control is described Energy-accumulating power station is discharged to the Traction networks, meanwhile, control the battery to be discharged to the Traction networks, wherein, it is described 7th predetermined threshold value is less than the 5th predetermined threshold value.
According to one embodiment of present invention, the braking recovery method of the train also includes：Detect the electricity of the battery Amount, and judge the electricity of the battery whether less than the second power threshold；If the electricity of the battery is less than the second electricity threshold Value, then control the battery to stop electric discharge.
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 first predetermined threshold value U1；
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 more than the second predetermined threshold value U2；
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 less than the 3rd predetermined threshold value U3；
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 5th predetermined threshold value U5；
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 according to an operation principle schematic diagram for the braking recovery system of the train of specific embodiment of the invention；
Figure 11 is the block diagram of the train according to the embodiment of the present invention；
Figure 12 is according to a block diagram for the train of specific embodiment of the invention；
Figure 13 is the block diagram of the train according to another specific embodiment of the invention；
Figure 14 is according to a structural representation for the train of specific embodiment of the invention；
Figure 15 is the flow chart of the braking recovery method of the train according to the embodiment of the present invention；
Figure 16 is the flow chart of the braking recovery method of the train according to one embodiment of the invention；
Figure 17 is the flow chart of the braking recovery method of the train according to another embodiment of the present 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；And
Figure 20 is the flow chart of the braking recovery method according to the train of another specific embodiment of the invention.
Reference：
Traction networks 1, train 2 and energy-accumulating power station 3；
Electric brake 201, battery 202, distributor 203, the controller 205 of two-way DC/DC converters 204 and first；Second Controller 301；
Bogie 20 and car body 30；Coulometric detector 206 and mechanical brake 207；
Bogie frame 21, travelling wheel 22, power set 23 and horizontal wheels 24；
Draw-gear 25 and supported and suspended device 26.
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 come describe the embodiment of the present invention proposition train braking recovery system and method and train.
Fig. 1 is the block diagram of the braking recovery system of train according to embodiments 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, and be arranged on Traction networks 1 Multiple energy-accumulating power stations 3.Wherein, Traction networks 1 to multiple trains 2 provide direct current, train 2 by electricity getting device from Traction networks 1 it Middle power taking.In one embodiment of the invention, train 2 can be straddle-type monorail train.In an embodiment of the present invention, can be with The braking electric energy that train 2 is produced is reclaimed by the battery or energy-accumulating power station 3 of train 2.For train 2, not only The braking electric energy of itself generation can be absorbed, it is also possible to absorb the braking electric energy that other trains 2 are produced on Traction networks 1.Due to row When to 1 regenerative braking electric energy of Traction networks, the voltage of Traction networks 1 can be raised car 2, therefore train 2 and energy-accumulating power station 3 can be to leading The voltage for drawing net 1 is monitored.When the voltage of Traction networks 1 is raised, can be carried out by the battery of train 2 and/or energy-accumulating power station 3 Absorb, so as to the voltage for preventing Traction networks 1 exceedes maximum rated voltage, and break down.Specific absorption process, will be following Embodiment in describe in detail.In an embodiment of the present invention, the braking electric energy that the battery of train 2 absorbs can be used for row The illumination of car 2, air-conditioning, multimedia electricity consumption.In other embodiments of the invention, the braking electric energy that the battery of train 2 absorbs The emergency driving of train 2 is can be also used for, such as, when train 2 cannot obtain electric energy from Traction networks 1, such as Traction networks 1 break down, Or, when not having Traction networks 1, train 2 can switch to battery power.In an embodiment of the present invention, energy-accumulating power station 3 can set Among putting AT STATION, by the braking electric energy of absorption for station is powered, for example, the air-conditioning at station, multimedia, light etc. enter Row power supply.In an embodiment of the present invention, energy-accumulating power station 3 is according to predeterminable range interval setting, such as interior settable per 3-6 kilometers Two energy-accumulating power stations 3, the power of each energy-accumulating power station 3 can be 0.5-2MW.Certain those skilled in the art can be according to train 2 Specific operating environment, selects the quantity and power of suitable energy-accumulating power station 3.
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.Train 2 includes：Electric brake 201, battery 202, distribution Device 203, the controller 205 of two-way DC/DC converters 204 and first.
Wherein, as shown in Fig. 2 Traction networks 1 provide direct current, distributor 203 is connected with Traction networks 1 and electric brake 201, There is node between distributor 203 and electric brake 201；Two-way DC/DC converters 204, the one of two-way DC/DC converters 204 End is connected with battery 202, the other end and the node between distributor 203 and electric brake 201 of two-way DC/DC converters 204 It is connected；First controller 205 is connected with distributor 203 and two-way DC/DC converters 204, and the first controller 205 is used in train Distributor 203 and two-way DC/DC converters 204 are controlled during braking will brake electric energy feedback to Traction networks 1, such as by distributor 203 are opened, and two-way DC/DC converters 204 are closed, so as to electric energy direct feedback to Traction networks 1 will be braked.And, leading Draw the voltage of net 1 more than the first predetermined threshold value U1, such as during 845V, the first controller 205 controls two-way DC/DC converters 204 Open, and control two-way DC/DC converters 204 to enter charge mode, so that braking electric energy of the battery 202 of train 2 to train 2 Absorbed.In one embodiment of the invention, energy-accumulating power station 3 is connected with Traction networks 1, and energy-accumulating power station 3 includes the second control Device 301, second controller 301 is used to be more than the second predetermined threshold value U2 in the voltage U of Traction networks 1, such as during 855V, control energy storage Charged in power station 3.Wherein, energy-accumulating power station 3 may include at least one energy-storage battery and corresponding two-way DC/DC converters. In embodiments of the invention, as shown in Fig. 2 energy-accumulating power station 3 may include multiple 160KW-80KWh modules, multiple 160KW-80KWh The positive pole of module is connected, and is connected with the positive pole of Traction networks 1 by positive pole cabinet, and the negative pole of multiple 160KW-80KWh modules is connected, And be connected with the negative pole of Traction networks 1 by negative pole cabinet.
A specific embodiment of the invention, the second predetermined threshold value U2 is more than the first predetermined threshold value U1.
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 more than the first predetermined threshold value U1, the first controller 205 is controlled The battery 202 of train 2 absorbs braking electric energy.Meanwhile, the second controller 301 of energy-accumulating power station 3 monitors the voltage U of Traction networks, such as The voltage U of fruit Traction networks 1 after the battery 202 of train 2 is absorbed continues to raise, then when the voltage of Traction networks 1 is more than the During two predetermined threshold value U2, second controller 301 controls energy-accumulating power station 3 to be charged from the absorption electric energy of Traction networks 1.Similarly, when Train quantity on Traction networks 1 is more, i.e., when the load on Traction networks 1 is larger, the voltage U of Traction networks 1 can be reduced, now energy storage The voltage U of the real-time monitoring Traction networks 1 of second controller 301 in power station 3, when the voltage U reductions of Traction networks 1, preferentially by the The control energy-accumulating power station 3 of two controller 301 is discharged to improve the voltage of Traction networks 1.If the voltage U of Traction networks 1 continues to drop Low, then the first controller 205 also can control battery 202 and be discharged to improve the voltage of Traction networks 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.
In an embodiment of the present invention, the braking electric energy for being produced due to train braking is very big, such as shown in table 1, can be with Find out the braking electric energy that can be produced under the operating mode of AW2 and AW3 more than 220KW.If now inhaled using the on-vehicle battery of train These braking electric energy are received, then the on-vehicle battery of train can be caused very big.Therefore in an embodiment of the present invention, for such feelings Condition 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, after braking electric energy feeds back to Traction networks 1, Traction networks 1 Voltage can be raised, and the first controller 205 monitors the voltage U of Traction networks 1, when the voltage U of Traction networks is more than the first predetermined threshold value U1, For example during 845V, the first controller 205 controls two-way DC/DC converters 204 to open, and controls two-way DC/DC converters 204 to enter Enter charge mode, to control battery 202 to absorb braking electric energy.Now, the side that the electric energy in circuit is indicated according to arrow shown in Fig. 3 To flowing, wherein, the braking electric energy that train 2 is produced feeds back to Traction networks 1, and the battery 202 of train 2 absorbs braking electric energy. In an embodiment of the present invention, when the first controller 205 controls two-way DC/DC converters 204 to open, and two-way DC/DC is controlled When converter 204 enters charge mode, two-way DC/DC converters 204 are by electricity that on high-tension side DC power conversion is with battery 202 The direct current of matching is pressed, with the i.e. control battery 202 absorption braking electric energy that charged to battery 202；When the first controller 205 is controlled When making two-way DC/DC converters 204 to open, and controlling two-way DC/DC converters 204 to enter discharge mode, two-way DC/DC conversion It is direct current with the voltage matches of Traction networks 1 that device 204 is used for the DC power conversion that battery 202 is provided, to control battery 202 The braking electric energy that carrying out electric discharge will store in battery 202 feeds back to Traction networks 1.
According to one embodiment of present invention, as shown in figure 4, second controller 301 monitors the voltage U of Traction networks 1, when leading Draw the voltage U of net more than the second predetermined threshold value U2, such as during 855V, the control energy-accumulating power station 3 of second controller 301 is charged. Now, the electric energy in circuit flows according to the direction that arrow shown in Fig. 4 is indicated, and the braking electric energy that train 2 is produced feeds back to traction Net 1, and the battery 202 and energy-accumulating power station 3 of train 2 absorb braking electric energy.In an embodiment of the present invention, when train 2 Battery 202 start absorb braking electric energy when, now because the train on Traction networks 1 is less, or the train 2 now braked compared with Many, the voltage of Traction networks 1 can also continue to increase.When the voltage U of Traction networks 1 is more than the 4th predetermined threshold value U4, control energy storage electricity Stand 3 from Traction networks 1 absorb electric energy charged, so as to avoid Traction networks voltage exceed maximum rated voltage.
According to one embodiment of present invention, as shown in figure 5, battery 202 start absorb braking electric energy after, Traction networks 1 voltage can decline, and the first controller 205 monitors the voltage U of Traction networks 1, when the voltage of Traction networks 1 is less than the 3rd predetermined threshold value During U3, such as 830V, the first controller 205 controls two-way DC/DC converters 204 to close so that battery 202 stops absorbing braking Electric energy, wherein, the 3rd predetermined threshold value U3 is less than the first predetermined threshold value U1.Now, the electric energy in circuit refers to according to arrow shown in Fig. 5 The direction flowing shown, the braking electric energy that train 2 is produced feeds back to Traction networks 1, and train 2 battery 202 and energy-accumulating power station 3 not Absorb braking electric energy.
According to one embodiment of present invention, as shown in fig. 6, second controller 301 monitors the voltage U of Traction networks 1, when leading Draw the voltage of net 1 less than the 5th predetermined threshold value U5, such as during 810V, the control energy-accumulating power station 3 of second controller 301 is discharged, Wherein, the 5th predetermined threshold value U5 is less than the second predetermined threshold value U2.Now, the electric energy in circuit is indicated according to arrow shown in Fig. 6 Direction is flowed, and the braking electric energy that train 2 is produced feeds back to Traction networks 1, and energy-accumulating power station 3 discharges Traction networks 1.In this hair In bright embodiment, if the more voltage that may result in Traction networks of train 2 on Traction networks 1 declines, now in order to avoid leading The voltage for drawing net is less than minimum rated voltage, it is necessary to control energy-accumulating power station 3 to be discharged to Traction networks 1.At one of the invention There are multiple energy-accumulating power stations 3 in specific embodiment, on Traction networks 1, prioritizing selection electricity energy-accumulating power station 3 high is put to Traction networks The power of electricity, such as the electricity 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 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, the voltage liter of Traction networks 1 Height, second controller 301 monitors the voltage U of Traction networks 1, when the voltage of Traction networks 1 is more than the 6th predetermined threshold value U6, the second control The control energy-accumulating power station 3 of device processed 301 stops 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, as shown in fig. 7, energy-accumulating power station 3 to Traction networks 1 discharge after, if led The voltage for drawing net 1 continues to reduce, then when the voltage of Traction networks 1 is less than the 7th predetermined threshold value U7, second controller control energy storage Power station 3 is discharged to Traction networks 1, meanwhile, the control two-way DC/DC converters 204 of control of the first controller 205 are opened, and are controlled Two-way DC/DC converters 204 are made into discharge mode so that the battery 202 of train is discharged to Traction networks 1, wherein, the 7th Predetermined threshold value U7 is less than the 5th predetermined threshold value U5.Now, the electric energy in circuit flows according to the direction that arrow shown in Fig. 7 is indicated, The braking electric energy that train 2 is produced feeds back to Traction networks 1, and energy-accumulating power station 3 and battery 202 discharge Traction networks 1.At this In embodiment, if the voltage U of Traction networks 1 is too small, the battery of control energy-accumulating power station 3 and train 2 is discharged, so that will The voltage of Traction networks 1 is quickly improved.
Specifically, when train 2 is braked, braking electric energy feeds back to Traction networks 1, and the first controller 205 is supervised in real time The voltage U of Traction networks is surveyed, if the voltage U of Traction networks is more than the first predetermined threshold value U1, such as 845V, is illustrated now to feed back to and is led The braking electric energy drawn on net 1 is superfluous, then the first controller 205 controls two-way DC/DC converters 204 to be operated in charge mode to incite somebody to action Braking electric energy charges for battery 202.Now, the braking electric energy that train 2 is produced feeds back to Traction networks 1 by distributor 203, while Battery 202 is charged by two-way DC/DC converters 204, i.e., partial brake electric energy is absorbed by battery 202.Afterwards such as The voltage U of fruit Traction networks is less than the 3rd predetermined threshold value U3, such as 830V, illustrates now to feed back to the braking electric energy on Traction networks 1 Balance is basically reached with the load request on Traction networks 1, then the first controller 205 controls two-way DC/DC converters 204 to close Close.Now, control battery 202 stops absorbing braking electric energy, and the braking electric energy that train 2 is produced is fed back to by distributor 203 and led Draw net 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.
Further, if the train on Traction networks 1 is less, or the train 2 now braked is more, then in train 2 Battery 202 starts after absorption braking electric energy, and the voltage U of Traction networks 1 continues to raise, when the voltage U of Traction networks is pre- more than second If when threshold value U2, such as 855V, second controller 301 controls energy-accumulating power station 3 to be charged from the absorption braking electric energy of Traction networks 1, To mitigate the pressure that battery 202 absorbs braking electric energy, the maximum rated electricity of Traction networks 1 is exceeded so as to the voltage U for avoiding Traction networks 1 Pressure Un.If the more voltage that may result in Traction networks of train on Traction networks 1 declines, when the voltage U of Traction networks 1 is less than the 5th When predetermined threshold value U5, such as 810V, the control energy-accumulating power station 3 of second controller 301 is discharged to Traction networks 1.
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, illustrate now to feed back to traction Braking electric energy on net 1 has basically reached balance with the load on Traction networks 1, then the control of second controller 301 energy-accumulating power station 3 stops Only discharge.
Further, if the train quantity on Traction networks 1 is more, after control energy-accumulating power station 3 is discharged, lead The voltage U for drawing net may proceed to reduce, when the voltage U of Traction networks is less than the 7th predetermined threshold value U7, the control storage of second controller 301 Energy power station 3 is discharged to Traction networks 1, meanwhile, the first controller 205 controls two-way DC/DC converters 204 to open, and 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 that will traction The voltage of net 1 is quickly improved.Wherein, the discharge power of battery 202 is the maximum allowable discharge power and two-way DC/ of battery 202 Smaller value in the maximum allowable discharge power of DC converters 204.
According to one embodiment of present invention, as shown in figure 8, train 2 also includes：Coulometric detector 206, wherein, electricity Detector 206 is connected with the first controller 205, and coulometric detector 206 is used to detect the electricity Q of battery 202, wherein, work as battery During 202 absorption braking electric energy, the electricity of battery 202 can increase, if the electricity Q of battery 202 is more than the first power threshold Q1, example Such as 80%, then the first controller 205 controls two-way DC/DC converters 204 to close so that battery 202 stops absorbing braking electric energy.
According to one embodiment of present invention, when battery 202 is discharged to Traction networks 1, battery 202 is after discharge Electricity can reduce, if the electricity Q of battery 202 be less than the second power threshold Q2, such as 50%, then the first controller 205 control Two-way DC/DC converters 204 are closed so that battery 202 stops 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, and control two-way DC/DC converters 204 are operated in charge mode, and braking electric energy is absorbed to control battery 202 to continue.
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 of Traction networks 1 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 Braking, wherein, the 4th predetermined threshold value U4 is more than the first predetermined threshold value U1.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 exceedes 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, 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 to set two energy-accumulating power stations 3, the power of energy-accumulating power station 3 can It is 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, train also includes：Contactor detector, wherein, contactor detector is used for Detect whether the contactor of train disconnects, wherein, after detecting contactor and disconnecting, the first controller 205 controls two-way DC/ DC converters 204 are opened, and control two-way DC/DC converters 204 to enter discharge mode, so that battery 202 is powered for train 2, And control train 2 to limit Power operation.
Specifically, when contactor detector detects contactor to be disconnected, illustrate that train 2 is in abnormal electrical power supply state, First controller 205 judges that train 2 enters emergency driving pattern, and sends emergent traction signal, to control two-way DC/DC to convert Device 204 is opened, and controls two-way DC/DC converters 204 to enter discharge mode, and now, battery 202 is powered for train 2.Together When, the discharge power of the control battery 202 of the first controller 205 is less than or equal to predetermined power threshold value such as 70KW, so that train 2 is transported Row is 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.
As described above, as shown in Figure 10, so that the voltage class of Traction networks is as 750VDC as an example, the train of the embodiment of the present invention Braking recovery system carry out brake electric energy absorption and recycling 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 10, 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 first predetermined threshold value U1, 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 second predetermined threshold value U2, 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 10, when the voltage U of Traction networks reaches the second predetermined threshold value U2, controlling energy-accumulating power station 3 Start to absorb braking electric energy；When the voltage U of Traction networks is less than the second predetermined threshold value U2 more than the first predetermined threshold value U1, 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 5th predetermined threshold value U5, 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 that 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 put Electricity, meanwhile, the first controller 205 controls two-way DC/DC converters 204 to open, and controls two-way DC/DC converters 204 to enter Discharge mode, so that the battery 202 of train 2 is discharged to Traction networks 1.
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, the first controller is in train braking Control distributor and two-way DC/DC converters feed back to Traction networks by electric energy is braked, and after braking electric energy feeds back to Traction networks, lead The voltage for drawing net is raised, and when the voltage of Traction networks is more than the first predetermined threshold value, the first controller controls two-way DC/DC converters The braking electric energy of train is absorbed by battery, if the voltage of Traction networks continues to raise, when the voltage of Traction networks is big When the second predetermined threshold value, control energy-accumulating power station absorbs braking electric energy.In an embodiment of the present invention, when train is braked Braking electric energy is first fed back into Traction networks, now, if the train on Traction networks is relatively more, can be equal by the braking electric energy for feeding back It is even onto other trains, therefore, the voltage of Traction networks will not rise much higher., whereas if the train now on Traction networks is less, Or the train now braked is more, then the voltage of Traction networks will be raised.In an embodiment of the present invention, preferentially using vehicle-mounted Battery absorbs braking electric energy, if after on-vehicle battery absorption braking electric energy, the voltage of Traction networks continues to raise, then reuse storage Can power station absorption braking electric energy.Because on-vehicle battery is installed ON TRAINS, therefore battery is preferentially used to be absorbed, it is to avoid to occur Braking electric energy is excessive, it is impossible to is rapidly absorbed or consumes, so as to the problem that the electrical equipment for causing Traction networks is burned out.The present invention is implemented Example is absorbed by the battery and energy-accumulating power station on train to braking electric energy, it is achieved thereby that the recovery of braking electric energy and again profit With, energy waste is reduced, reduce the load of Traction networks.Also, the embodiment of the present invention can be with effective monitoring Traction networks Voltage, protects the parts of system, improves the security of system.
Figure 11 is the block diagram of train according to embodiments of the present invention.As shown in figure 11, the train 2 includes：Electricity system Dynamic device 201, battery 202, distributor 203, the controller 205 of two-way DC/DC converters 204 and first.
Wherein, distributor 203 is connected with drawing electric network 1 and electric brake 201, between distributor 203 and electric brake 201 With node；One end of two-way DC/DC converters 204 is connected with battery 202, the other end of two-way DC/DC converters 204 with match somebody with somebody Node between electrical equipment 203 and electric brake 201 is connected.First controller 205 and distributor 203 and two-way DC/DC converters 204 are connected, and the first controller 205 is used to be controlled when train 2 is braked distributor 203 and two-way DC/DC converters 204 by braking Electric energy feedback to Traction networks 1, and Traction networks 1 voltage be more than the first predetermined threshold value U1, such as during 845V, control it is two-way DC/DC converters 204 are opened, and control two-way DC/DC converters 204 to enter charge mode, so that system of the battery 202 to train Electrokinetic energy is absorbed.
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.When the train negligible amounts on Traction networks 1 are Traction networks Load on 1 is smaller, or on Traction networks 1 brake train it is more when, feed back to the braking electric energy on Traction networks 1 can exceed lead Electric energy needed for drawing the train operation on net 1, so as to cause the rising of the voltage U of Traction networks.Now, the first controller 205 is real When monitoring Traction networks voltage U, when Traction networks 1 voltage U be more than the first predetermined threshold value U1 when, the first controller 205 control row The battery 202 of car 2 absorbs braking electric energy.Similarly, when the train quantity on Traction networks 1 is more, i.e., the load on Traction networks 1 compared with When big, the voltage U of Traction networks 1 can be reduced, and the control battery 202 of the first controller 205 is discharged to improve the electricity of Traction networks 1 Pressure.
It should be noted that the battery 202 of train 2 can be powered for the illumination of train, air-conditioning, multimedia.So, Braking electric energy can be for recycling and reuse by battery 202, while the load of transformer station can be reduced, save energy Source.
Also, it should be noted that battery 202 is arranged on train 2, the braking electric energy of train generation can be quickly absorbed.Cause This, prioritizing selection battery 202 absorbs braking electric energy in an embodiment of the present invention, to realize braking the quick absorption of electric energy, from And prevent the braking electric energy for not absorbed or being consumed from causing the voltage U of Traction networks to raise, protect the parts of system, it is to avoid Electrical equipment on Traction networks 1 is damaged, and improves the security of system.
According to one embodiment of present invention, after battery 202 starts to absorb braking electric energy, the voltage meeting of Traction networks 1 Decline, the first controller 205 monitors the voltage U of Traction networks 1, when the voltage of Traction networks 1 is less than the 3rd predetermined threshold value U3, for example During 830V, the first controller 205 control two-way DC/DC converters 204 to close so that battery 202 stop absorb braking electric energy, its In, the 3rd predetermined threshold value U3 is less than the first predetermined threshold value U1.
According to one embodiment of present invention, as shown in figure 12, train 2 also includes：Coulometric detector 206, wherein, electricity Detector 206 is connected with the first controller 205, and coulometric detector 206 is used to detect the electricity Q of battery 202, wherein, work as battery 202 when absorbing braking electric energy, if the electricity Q of battery 202 is more than the first power threshold Q1, such as 80%, then the first controller The 205 two-way DC/DC converters 204 of control are closed so that battery 202 stops absorbing braking electric energy.
According to one embodiment of present invention, as shown in figure 13, train 2 also includes：Mechanical brake 207, wherein, machinery Brake 207 is used to carry out mechanical braking to train.
According to one embodiment of present invention, after battery 202 absorbs braking electric energy, when the voltage U of Traction networks 1 is more than During the 4th predetermined threshold value U4, the control machinery brake of the first controller 205 starts cooperation electric brake 201 to train system It is dynamic, wherein, the 4th predetermined threshold value U4 is more than the first predetermined threshold value U1.In an embodiment of the present invention, if row on Traction networks 1 Car is less, or the train now braked is more, then after battery 202 absorbs braking electric energy, the voltage U of Traction networks 1 can be after Continuous to increase, when the voltage of Traction networks 1 is more than the 4th predetermined threshold value U4, control machinery brake 207 starts, and enters with to train 2 Row auxiliary braking.
Specifically, after battery 202 absorbs braking electric energy, the voltage of the real-time monitoring Traction networks of the first controller 205 U, if the voltage U of Traction networks is more than the 4th predetermined threshold value U4, the control machinery brake 207 of the first controller 205 starts, this Sample, when electric braking is carried out to train 2, while carrying out auxiliary braking to train 2 by mechanical braking, is produced with reducing train 2 Braking electric energy, so as to the voltage U for avoiding Traction networks exceedes maximum rated 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.
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 14, 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 14, 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 14, 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.
To sum up, according to embodiments of the present invention propose train, the first controller control in train braking distributor and pair Traction networks are fed back to by electric energy is braked to DC/DC converters, after braking electric energy feeds back to Traction networks, the voltage liter of Traction networks Height, when the voltage of Traction networks is more than the first default level pressure, the first controller controls two-way DC/DC converters by battery to row The braking electric energy of car is absorbed.In an embodiment of the present invention, first braking electric energy is fed back to when train is braked and is led Draw net, if the train now on Traction networks is more, the braking electric energy that will can be fed back is uniform onto other trains, therefore traction 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 lead The voltage for drawing net will be raised.In an embodiment of the present invention, battery is installed ON TRAINS, is absorbed using on-vehicle battery, It is excessive to avoid the occurrence of braking electric energy, it is impossible to be rapidly absorbed or consume, so as to asking of causing the electrical equipment on Traction networks to be burned out Topic.The embodiment of the present invention by the battery on train to braking electric energy absorb, it is achieved thereby that braking electric energy recovery and Recycle, reduce the waste of the energy, reduce the load of Traction networks.Also, the embodiment of the present invention can be led with effective monitoring Draw the voltage of net, protect the parts of system, improve the security of system.
Figure 15 is the flow chart of the braking recovery method of train according to embodiments of the present invention.As shown in figure 15, the method Comprise the following steps：
S10：Train is braked, and according to brake force generation braking electric energy, and braking electric energy is fed back into Traction networks.
S20：Monitor the voltage of Traction networks.
S30：If the voltage of Traction networks is more than the first predetermined threshold value U1, such as 845V, then battery is controlled to braking electric energy Absorbed.
S40：If the voltage of Traction networks is more than the second predetermined threshold value U2, such as 855V, then energy-accumulating power station is controlled to be filled Electricity.
A specific embodiment of the invention, the second predetermined threshold value U2 is more than the first predetermined threshold value U1.
Specifically, when train is braked, produce braking electric energy and braking electric energy is fed back into Traction networks.Work as traction Online train negligible amounts are that the load on Traction networks is smaller, or on Traction networks brake train it is more when, feed back to and lead Drawing online braking electric energy can be more than the electric energy needed for the train operation on Traction networks, so as to cause the liter of the voltage U of Traction networks It is high.Now, the voltage U of real-time monitoring Traction networks, when the voltage U of Traction networks is more than the first predetermined threshold value U1, control train Battery absorbs braking electric energy.Meanwhile, continue to monitor the voltage U of Traction networks, if the battery in train carries out the rear haulage for absorbing The voltage U of net continues to raise, then when the voltage of Traction networks is more than the second predetermined threshold value U2, control energy-accumulating power station is inhaled from Traction networks Electric energy is received to be charged.Similarly, when the train quantity on Traction networks is more, i.e., when the load on Traction networks is larger, Traction networks Voltage U can reduce, the now voltage U of real-time monitoring Traction networks, when the voltage U reductions of Traction networks, control energy-accumulating power station enters Row discharges to improve the voltage of Traction networks.If the voltage U of Traction networks continues to reduce, the two-way DC/DC of train is controlled simultaneously Converter is opened, and controls two-way DC/DC converters to enter discharge mode, to control battery to be discharged to improve Traction networks Voltage.
According to one embodiment of present invention, the braking recovery method of train also includes：Judge Traction networks voltage U whether Less than the 3rd predetermined threshold value U3, such as 830V；If the voltage U of Traction networks is less than the 3rd predetermined threshold value U3, such as 830V, then control The two-way DC/DC converters of train processed are opened and control two-way DC/DC converters to enter charge mode, to control battery to stop inhaling Braking electric energy is received, wherein, the 3rd predetermined threshold value U3 is less than the first predetermined threshold value U1.In an embodiment of the present invention, in battery 202 Start after absorption braking electric energy, the voltage of Traction networks 1 can decline, when the voltage U of Traction networks is less than the 3rd predetermined threshold value U3, Illustrate now to feed back to the braking electric energy on Traction networks and basically reached balance with the load request on Traction networks, and then control electricity Pond stops absorbing braking electric energy, continues to reduce with the voltage for preventing Traction networks.
According to one embodiment of present invention, the braking recovery method of train also includes：Judge Traction networks voltage U whether Less than the 5th predetermined threshold value U5, such as 810V；If the voltage U of Traction networks is less than the 5th predetermined threshold value U5, such as 810V, then control Energy-accumulating power station processed is discharged, wherein, the 5th predetermined threshold value U5 is less than the second predetermined threshold value U2.In an embodiment of the present invention, If the more voltage that may result in Traction networks of train on Traction networks declines, now in order to avoid the voltage of Traction networks is less than most Low rated voltage is, it is necessary to control energy-accumulating power station to be discharged to Traction networks.
According to one embodiment of present invention, the braking recovery method of train also includes：Judge Traction networks voltage U whether More than the 6th predetermined threshold value U6；If the voltage of Traction networks is more than the 6th predetermined threshold value U6, control energy-accumulating power station stops electric discharge, Wherein, the 6th predetermined threshold value U6 is more than the 5th predetermined threshold value U5, such as 810V.In an embodiment of the present invention, in energy-accumulating power station After being discharged to Traction networks, the voltage of Traction networks is raised, and when the voltage of Traction networks is more than the 6th predetermined threshold value U6, is illustrated now The braking electric energy fed back on Traction networks has basically reached balance with the load on Traction networks, and then controls energy-accumulating power station to stop putting Electricity, continues to raise with the voltage for preventing Traction networks.
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, control energy-accumulating power station is to Traction networks Discharged, meanwhile, control the two-way DC/DC converters of train to open, and control two-way DC/DC converters to enter electric discharge mould Formula, to control battery to be discharged to Traction networks, wherein, the 7th predetermined threshold value U7 is less than the 5th predetermined threshold value U5, such as 810V. 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, so that The voltage of Traction networks is quickly improved.
Specifically, as shown in figure 16, specifically included when controlling battery to absorb the braking electric energy of train 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 first predetermined threshold value U1 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, thinks traction Online train is powered.
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.
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 absorbing：
S201：Monitor the voltage U of Traction networks.
S202：Judge the voltage U of Traction networks whether more than the second predetermined threshold value U2 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.
So, braking electric energy is absorbed by energy-accumulating power station, the pressure that battery absorbs braking electric energy can be mitigated, so as to avoid The voltage U of Traction networks exceedes the maximum rated voltage Un of Traction networks.
S204：Judge the voltage U of Traction networks whether less than the 5th predetermined threshold value U5 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, and thinks that other trains on Traction networks are powered.
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, the braking recovery method of train also includes：Judge Traction networks voltage U whether More than the 4th predetermined threshold value U4；If the voltage U of Traction networks is more than the 4th predetermined threshold value U4, then train is controlled to carry out mechanical system It is dynamic to coordinate implementation electric braking to brake train, wherein, the 4th predetermined threshold value U4 is more than the first predetermined threshold value U1.In the present invention Embodiment in, if the train on Traction networks is less, or the train now braked is more, then inhaled in battery and energy-accumulating power station Receive after braking electric energy, the voltage U of Traction networks may proceed to increase, when the voltage of Traction networks is more than the 4th predetermined threshold value U4, control Train processed 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 exceedes 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：The electricity Q of battery is detected, and is sentenced Whether the electricity Q for powering off pond is more than the first power threshold Q1, such as 80%；If the electricity Q of battery is more than the first power threshold Q1, such as 80%, then control battery to stop absorbing braking electric energy.
According to one embodiment of present invention, the braking recovery method of train also includes：The electricity Q of battery is detected, and is sentenced Whether the electricity Q for powering off pond is less than the second power threshold Q2, such as 50%；If the electricity Q of battery is less than the second power threshold Q2, such as 50%, then control battery to stop 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, carrying out braking the recycling and reuse of electric energy in embodiments of the present invention Comprise the following steps that：
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 first predetermined threshold value U1, 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 second predetermined threshold value U2, 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 5th predetermined threshold value U5 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, brakes to train, and according to system Power generation braking electric energy, and braking electric energy is fed back into Traction networks, now the voltage of Traction networks can be raised, monitoring Traction networks Voltage, if the voltage of Traction networks is more than the first predetermined threshold value, control battery absorbs braking electric energy.If control battery is carried out After absorption, the voltage of Traction networks continues to raise, then when the voltage of Traction networks is more than the second predetermined threshold value, control energy-accumulating power station Absorbed.In an embodiment of the present invention, the braking electric energy that train braking is generated is fed back into Traction networks first, if now Train on Traction networks is more, then the braking electric energy that will be fed back is uniform onto other trains, therefore, the voltage of Traction networks 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 is just Can raise.In an embodiment of the present invention, priority acccess control on-vehicle battery is absorbed, if on-vehicle battery absorb braking electric energy it Afterwards, the voltage of Traction networks continues to raise, then control energy-accumulating power station to be absorbed again.Due to on-vehicle battery being set ON TRAINS, Therefore priority acccess control battery is absorbed, it is to avoid braking electric energy occur excessive, it is impossible to be rapidly absorbed or consume, so as to cause to lead Draw the problem that the electrical equipment of net is burned out.The embodiment of the present invention is inhaled by the battery and energy-accumulating power station on train to braking electric energy Receive, it is achieved thereby that the recycling and reuse of braking electric energy, reduce energy waste, reduce the load of Traction networks.Also, this Inventive embodiments can protect the parts of system with the voltage of effective monitoring Traction networks, improve the security of system.
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 (30)

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, first control Device processed is used to be controlled in the train braking distributor and the two-way DC/DC converters by braking electric energy feedback to institute Traction networks are stated, and when the voltage of the Traction networks is more than the first predetermined threshold value, controls the two-way DC/DC converters to pass through The battery absorbs to the braking electric energy of the train；
Energy-accumulating power station, the energy-accumulating power station is connected with the Traction networks, and the energy-accumulating power station includes second controller, described second Controller is used to, when the voltage of the Traction networks is more than the second predetermined threshold value, control the energy-accumulating power station to be charged.
2. the braking recovery system of train as claimed in claim 1, it is characterised in that second predetermined threshold value is more than described First predetermined threshold value.
3. 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 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 first Predetermined threshold value.
4. the braking recovery system of train as claimed in claim 1, 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 additionally operable in the battery When electricity is more than the first power threshold, the two-way DC/DC converters are controlled to close so that the battery stops absorbing the system Electrokinetic energy.
5. the braking recovery system of train as claimed in claim 1, it is characterised in that the train also includes：
Mechanical brake, for carrying out mechanical braking to train.
6. the braking recovery system of train as claimed in claim 5, it is characterised in that
After the battery absorbs the braking electric energy, first controller is additionally operable to be more than in the voltage of the Traction networks During four predetermined threshold values, control the mechanical brake to start and coordinate the electric brake to brake the train, wherein, 4th predetermined threshold value is more than first predetermined threshold value.
7. the braking recovery system of train as claimed in claim 1, it is characterised in that
The second controller is additionally operable to, when the voltage of the Traction networks is less than five predetermined threshold values, control the energy-accumulating power station Discharged, wherein, the 5th predetermined threshold value is less than second predetermined threshold value.
8. the braking recovery system of train as claimed in claim 7, it is characterised in that in the energy-accumulating power station to the traction After net electric discharge, the second controller is additionally operable to when the voltage of the Traction networks is more than six predetermined threshold values, and control is described Energy-accumulating power station stops electric discharge, wherein, the 6th predetermined threshold value is more than the 5th predetermined threshold value.
9. the braking recovery system of train as claimed in claim 7, it is characterised in that
When the voltage of the Traction networks is less than seven predetermined threshold values, the second controller controls the energy-accumulating power station to described Traction networks are discharged, meanwhile, the first controller control control two-way DC/DC converters enter discharge mode so that The battery of the train is discharged to the Traction networks, wherein, the 7th predetermined threshold value is less than the 5th predetermined threshold value.
10. the braking recovery system of train as claimed in claim 9, it is characterised in that when the battery is to the Traction networks When being discharged, first controller is additionally operable to, when the electricity of the battery is less than the second power threshold, control described double Closed to DC/DC converters so that the battery stops electric discharge.
The braking recovery system of 11. 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 12. trains as claimed in claim 11, 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.
A kind of 13. trains, it is characterised in that including：
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, first control Device processed is used to be controlled in the train braking distributor and the two-way DC/DC converters by braking electric energy feedback to institute Traction networks are stated, and when the voltage of the Traction networks is more than the first predetermined threshold value, controls the two-way DC/DC converters to pass through The battery absorbs to the braking electric energy of the train.
14. trains as claimed in claim 13, 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 first Predetermined threshold value.
15. trains as claimed in claim 13, it is characterised in that also include：
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 additionally operable in the battery When electricity is more than the first power threshold, the two-way DC/DC converters are controlled to close so that the battery stops absorbing the system Electrokinetic energy.
16. trains as claimed in claim 13, it is characterised in that the train also includes：
Mechanical brake, for carrying out mechanical braking to train.
17. trains as claimed in claim 16, it is characterised in that
After the battery absorbs the braking electric energy, first controller is additionally operable to be more than in the voltage of the Traction networks During four predetermined threshold values, control the mechanical brake to start and coordinate the electric brake to brake the train, wherein, 4th predetermined threshold value is more than first predetermined threshold value.
18. trains as claimed in claim 13, it is characterised in that the train is straddle-type monorail train.
19. trains as claimed in claim 18, it is characterised in that also include：
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.
20. trains as claimed in claim 19, 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；
Horizontal wheels, the horizontal wheels are pivotably mounted on the bogie frame and coordinate the side surface in the track girder On.
21. trains as claimed in claim 20, 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 method of 22. a kind of trains, it is characterised in that comprise the following steps：
The train is braked, and according to brake force generation braking electric energy, and the braking electric energy is fed back into Traction networks；
Monitor the voltage of the Traction networks；
If the voltage of the Traction networks is more than the first predetermined threshold value, control battery absorbs to braking electric energy；
If the voltage of the Traction networks is more than the second predetermined threshold value, control energy-accumulating power station is charged.
The braking recovery method of 23. trains as claimed in claim 22, it is characterised in that second predetermined threshold value is more than institute State the first predetermined threshold value.
The braking recovery method of 24. trains as claimed in claim 22, it is characterised in that also include：
Judge the voltage of the Traction networks whether less than the 3rd predetermined threshold value；
If the voltage of the Traction networks is less than the 3rd predetermined threshold value, the battery is controlled to stop absorbing the braking electricity Can, wherein, the 3rd predetermined threshold value is less than first predetermined threshold value.
The braking recovery method of 25. trains as claimed in claim 22, it is characterised in that also include：
The electricity of the battery is detected, and judges the electricity of the battery whether more than the first power threshold；
If the electricity of the battery is more than first power threshold, control battery stops absorbing braking electric energy.
The braking recovery method of 26. trains as claimed in claim 22, it is characterised in that also include：
Judge the voltage of the Traction networks whether more than the 4th predetermined threshold value；
If the voltage of the Traction networks is more than the 4th predetermined threshold value, then controls train to carry out mechanical braking and coordinate implementation Electric braking is braked to the train, wherein, the 4th predetermined threshold value is more than first predetermined threshold value.
The braking recovery method of 27. trains as claimed in claim 22, it is characterised in that also include：
Judge the voltage of the Traction networks whether less than the 5th predetermined threshold value；
If the voltage of the Traction networks is less than the 5th predetermined threshold value, the energy-accumulating power station is controlled to be discharged, wherein, 5th predetermined threshold value is less than second predetermined threshold value.
The braking recovery method of 28. trains as claimed in claim 27, it is characterised in that also include：
Judge the voltage of the Traction networks whether more than the 6th predetermined threshold value；
If the voltage of the Traction networks is more than the 6th predetermined threshold value, the energy-accumulating power station is controlled to stop electric discharge, wherein, 6th predetermined threshold value is more than the 5th predetermined threshold value.
The braking recovery method of 29. trains as claimed in claim 27, it is characterised in that also include：
Judge the voltage of the Traction networks whether less than the 7th predetermined threshold value；
If the voltage of the Traction networks is less than the 7th predetermined threshold value, the energy-accumulating power station is controlled to enter to the Traction networks Row electric discharge, meanwhile, control the battery to be discharged to the Traction networks, wherein, the 7th predetermined threshold value is less than described the Five predetermined threshold values.
The braking recovery method of 30. trains as claimed in claim 29, it is characterised in that also include：
The electricity of the battery is detected, and judges the electricity of the battery whether less than the second power threshold；
If the electricity of the battery is less than the second power threshold, the battery is controlled to stop electric discharge.
CN201610841182.4A 2016-09-21 2016-09-21 The braking recovery system and method and train of train Active CN106809035B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102133894A (en) * 2010-01-25 2011-07-27 北京理工大学 Control method of feeding and braking of electric vehicle driving motor system
CN103434420A (en) * 2013-07-29 2013-12-11 华北电力大学（保定） Braking energy recovery type DC (Direct Current) traction power supply system basing on electric automobile charging
US20150045907A1 (en) * 2012-03-12 2015-02-12 Antonio Sambusseti Absorbable cap for bladder enlargement in patients with low compliance or for the replacement of a vast portion of bladder following bilharzia

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102133894A (en) * 2010-01-25 2011-07-27 北京理工大学 Control method of feeding and braking of electric vehicle driving motor system
US20150045907A1 (en) * 2012-03-12 2015-02-12 Antonio Sambusseti Absorbable cap for bladder enlargement in patients with low compliance or for the replacement of a vast portion of bladder following bilharzia
CN103434420A (en) * 2013-07-29 2013-12-11 华北电力大学（保定） Braking energy recovery type DC (Direct Current) traction power supply system basing on electric automobile charging

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