CN206870871U - A kind of train traction system - Google Patents
A kind of train traction system Download PDFInfo
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- CN206870871U CN206870871U CN201720694995.5U CN201720694995U CN206870871U CN 206870871 U CN206870871 U CN 206870871U CN 201720694995 U CN201720694995 U CN 201720694995U CN 206870871 U CN206870871 U CN 206870871U
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- energy
- storage system
- train
- tie point
- super capacitor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model discloses a kind of train traction system, including power network, energy-storage system, current transformer and controller, high-speed circuit breaker, the first tie point and the second tie point are respectively equipped with the power network, first tie point is between the high-speed circuit breaker and the second tie point, the power network is electrically connected by the first tie point with the energy-storage system, the power network is electrically connected by the second tie point with the current transformer, the controller is communicated to connect with the energy-storage system, and the energy-storage system is electrically connected by the current transformer with train.When train braking, the energy stored in energy-storage system can be used to energize to train again, it is possible to achieve the recycling and reuse of energy, save the energy by energy stores caused by braking into energy-storage system, when train powers off；And energy-storage system can energize in the state of emergency to train, the convenient orderly function that train is overhauled and realized to train.
Description
Technical field
It the utility model is related to train traction technical field, more particularly to a kind of train traction system.
Background technology
With the expansion of urban population, urban track traffic seems more and more important, must when building urban track traffic
The harmonious development of economy and environment must be considered.With the fast development of subway, it is desirable to which the operation of subway train has higher standard
Point rate, so as to require very high to the electric power system of whole piece subway line, if situations such as powering off may result in whole piece subway
Circuit is paralysed, and is made an extremely bad impression, the operation to subway brings huge pressure.Domestic and international multiple cities once occurred
Because power supply trouble occurs during operation in subway train, passenger's needs are caused to be got off the feelings come out of from subway tunnel
Condition.
In addition, the operation department as MTR, in order to ensure the safe operation of subway train, subway train is daily all
Drive into maintenance storehouse and carry out the comprehensive, inspection of system.Facility is provided in order to ensure the personal safety of maintainer and for maintenance,
Need subway train driving into non-Electric region, however existing subway train in the case of without electricity can not normally travel, this
Just need subway engineering car to carry out even hanging breakdown trailer, so need to expend substantial amounts of human and material resources and time, cause maintenance to be imitated
Rate is low, and needs to purchase special engineering truck and carry out operation, and cost is higher.
Utility model content
Technical problem to be solved in the utility model is：A kind of train traction system is provided, can be when train powers off
Emergency service is carried out to train.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：
A kind of train traction system, including power network, energy-storage system, current transformer and controller, it is respectively equipped with the power network
High-speed circuit breaker, the first tie point and the second tie point, first tie point are located at the high-speed circuit breaker and the second connection
Between point, the power network is electrically connected by the first tie point with the energy-storage system, and the power network passes through the second tie point and institute
State current transformer electrical connection, the controller and the energy-storage system communicate to connect, the energy-storage system by the current transformer with
Train electrically connects, and the energy-storage system includes super capacitor energy storage device and bidirectional DC-DC converter, the super capacitor energy-storage
Device electrically connects with the bidirectional DC-DC converter.
Further, the super capacitor energy storage device includes more than two super capacitor storage units, two or more
Super capacitor storage unit setting in series or in parallel.
Further, the controller is provided with Interface Data Unit, and the energy-storage system passes through MVB
Communicated to connect with the Interface Data Unit.
Further, the energy-storage system also includes current sensor and voltage sensor, the current sensor and electricity
Pressure sensor electrically connects with the DC-DC converter respectively.
Further, the energy-storage system also includes contactor and fuse, the contactor and fuse respectively with institute
State DC-DC converter electrical connection.
Further, the controller includes chip and display screen, and the chip electrically connects with the display screen.
Further, the energy-storage system includes more than two bidirectional DC-DC converters, more than two described two-way
DC-DC converter electrically connects with the super capacitor energy storage device respectively.
The beneficial effects of the utility model are：An energy-storage system is connected on power network, when train braking, will can be made
Energy stores are into energy-storage system caused by dynamic, when train power off, again can by the energy stored in energy-storage system for
Train energizes, it is possible to achieve the recycling and reuse of energy, saves the energy；And energy-storage system can be in the state of emergency to row
Car energizes, the convenient orderly function that train is overhauled and realized to train.
Brief description of the drawings
Fig. 1 is the schematic diagram of the train traction system of the utility model embodiment one；
Fig. 2 is the schematic diagram of the energy-storage system of the utility model embodiment one；
Fig. 3 is the circuit connection diagram of the energy-storage system of the utility model embodiment one.
Label declaration：
1st, power network；2nd, energy-storage system；3rd, current transformer；4th, controller；5th, high-speed circuit breaker；
21st, super capacitor energy storage device；22nd, bidirectional DC-DC converter；23rd, current sensor；
24th, voltage sensor；25th, contactor；26th, fuse.
Embodiment
For detailed description technology contents of the present utility model, the objects and the effects, below in conjunction with embodiment and match somebody with somebody
Accompanying drawing is closed to be explained.
The design of the utility model most critical is：An energy-storage system is connected on power network, when train braking, can be incited somebody to action
The energy stored in energy-storage system, when train powers off, can be used for by energy stores caused by braking again into energy-storage system
Energized to train.
Fig. 1 to Fig. 3, a kind of train traction system, including power network, energy-storage system, current transformer and controller are refer to, it is described
Power network is provided with high-speed circuit breaker, the first tie point and the second tie point, and first tie point is located at the high-speed circuit breaker
And second between tie point, the power network is electrically connected by the first tie point with the energy-storage system, and the power network passes through second
Tie point electrically connects with the current transformer, and the controller communicates to connect with the energy-storage system, and the energy-storage system passes through institute
State current transformer to electrically connect with train, the energy-storage system includes super capacitor energy storage device and bidirectional DC-DC converter, described super
Level capacitive energy storage device electrically connects with the bidirectional DC-DC converter.
Operation principle：Train travelling process high speed breaker is in connected state, and energy caused by train braking can be with
It is stored in super capacitor energy storage device；When super capacitor energy storage device is in full power state, control super capacitor manually
Energy storage device disconnects with power network；When power network can not give train power supply, super capacitor energy storage device is supplied by current transformer to train
Electricity, make train can be with normally travel certain distance.
It was found from foregoing description, the beneficial effects of the utility model are：An energy-storage system is connected on power network, works as train
During braking, it will can be deposited again in energy-storage system by energy stores caused by braking into energy-storage system, when train powers off
The energy of storage is used to energize to train, it is possible to achieve the recycling and reuse of energy, saves the energy；Energy-storage system uses super electricity
Hold energy storage device, more electric energy can be stored, for the longer distance of train driving, the energy storage size of super capacitor energy storage device
It can be designed and select as needed；Set high-speed circuit breaker when an emergency happens can be quick on the net in towing point
Cut off the electricity supply, carry out power-off protection, the direct current that super capacitor energy storage device exports can be converted to exchange and supplied electricity to by current transformer
The engine power supply of train.
Further, the super capacitor energy storage device includes more than two super capacitor storage units, two or more
Super capacitor storage unit setting in series or in parallel.
Seen from the above description, super capacitor energy storage device can be connected by multiple super capacitor storage units or
Person's parallel connection is obtained, and the connected mode and number of super capacitor storage unit can be configured as needed.
Further, the controller is provided with Interface Data Unit, and the energy-storage system passes through MVB
Communicated to connect with the Interface Data Unit.
Further, the energy-storage system also includes current sensor and voltage sensor, the current sensor and electricity
Pressure sensor electrically connects with the DC-DC converter respectively.
Seen from the above description, current sensor can be monitored to the size of current of energy-storage system, voltage sensor
The voltage swing of energy-storage system can be monitored, and judge whether super capacitor energy storage device is in full power state, work as storage
When energy system is in excessively stream or overvoltage condition, self-protection can be carried out to energy-storage system.
Further, the energy-storage system also includes contactor and fuse, the contactor and fuse respectively with institute
State DC-DC converter electrical connection.
Seen from the above description, contactor and fuse are set in energy-storage system, can be right with fast shut-off current loop
Energy-storage system is protected.
Further, the controller includes chip and display screen, and the chip electrically connects with the display screen.
Seen from the above description, display screen is set on the controller, is easy to relevant staff to observe the work of energy-storage system
Make state, be easy to send corresponding control instruction.
Further, the energy-storage system includes more than two bidirectional DC-DC converters, more than two described two-way
DC-DC converter electrically connects with the super capacitor energy storage device respectively.
Seen from the above description, multiple bidirectional DC-DC converters can be set up in parallel as needed, mitigated single two-way
The live load of DC-DC converter, increases the service life.
Fig. 1 to Fig. 3 is refer to, embodiment one of the present utility model is：
A kind of train traction system, emergency service, the subway that is particularly suitable for use in row can be carried out to train when train powers off
Car.
As shown in figure 1, the train traction system includes power network 1, energy-storage system 2, current transformer 3 and controller 4, the electricity
High-speed circuit breaker 5, the first tie point and the second tie point are respectively equipped with net 1, first tie point is located at the high quick-break
Between the tie point of road device 5 and second, the power network 1 is electrically connected by the first tie point with the energy-storage system 2, the power network 1
Electrically connected by the second tie point with the current transformer 3, the controller 4 communicates to connect with the energy-storage system 2, the energy storage
System 2 is electrically connected by the current transformer 3 with train.
In the present embodiment, the controller 4 is provided with Interface Data Unit, and the energy-storage system 2 passes through multifunctional vehicle
Bus communicates to connect with the Interface Data Unit.The controller 4 also includes chip and display screen, and the chip shows with described
Display screen electrically connects, and can show the current speed of service of train on display screen, and the electricity and train in energy-storage system 2 can range abilities
Deng being additionally provided with control button on display screen, being turned on or off for energy-storage system 2 can be controlled, and energy-storage system 2 is carried out
Charging etc..
As shown in Fig. 2 the energy-storage system 2 includes super capacitor energy storage device 21, bidirectional DC-DC converter 22, electric current
Sensor 23, voltage sensor 24, contactor 25 and fuse 26, the super capacitor energy storage device 21 and the two-way DC-
DC converters 22 electrically connect, the bidirectional DC-DC converter 22 respectively with the current sensor 23, voltage sensor 24, connect
Tentaculum 25 and fuse 26 electrically connect.In the present embodiment, the super capacitor energy storage device 21 includes more than two super electricity
Hold energy-storage units, more than two super capacitor storage unit settings in series or in parallel.The energy-storage system 2 includes two
Bidirectional DC-DC converter 22 more than individual, more than two bidirectional DC-DC converters 22 store up with the super capacitor respectively
Energy device 21 electrically connects.In the present embodiment, the circuit diagram of energy-storage system 2 can be as shown in Figure 3.
In the present embodiment, if subway train is in normal operating condition, and super capacitor energy storage device 21 is in non-full
During electricity condition, super capacitor energy storage device 21 can be charged by controller 4, when super capacitor energy storage device 21 is in
During full power state, the pantograph of subway train is lowered, super capacitor energy storage device 21 is off with power network 1.
When entering urgent traction state, the residue of super capacitor energy storage device 21 can be monitored in real time by the display screen of controller 4
Electricity and remaining hauling distance, if subway train in non-Electric region domain, and super energy storage device occurs and is in low battery shape
During state, it can also complete to charge to super capacitor energy storage device 21 by other externally fed equipment, it is ensured that subway arranges
Car can drive into electric region domain.When subway train is in urgent traction state, pantograph is constantly in disconnection shape with power network 1
State, to ensure that power supply is complete, after subway train carries out normal operating condition, just rise pantograph and super capacitor energy-storage is filled
21 are put to be charged.
In the present embodiment, it is assumed that a subway train needs to draw 1000m (coming and going each 500m), if every kilometer of consumption of subway train
Electricity is 4 degree of electricity, then then needs to configure the super capacitor energy storage device 21 that capacitance is 4 degree, if each subway train is matched somebody with somebody
Put 4 groups of super capacitor energy-storage modules, then every group of super capacitor energy-storage module needs to provide 1 degree of electricity.Generally, super electricity
The supply voltage for holding energy storage device 21 is less than the supply voltage of power network 1, it is assumed that power network 1 is DC1500V supply voltage, then super
Level capacitive energy storage device 21 can be configured using DC1200V voltage.Assuming that each super capacitor storage unit is 3000F, work
It is 1.3V-2.7V to make voltage range, is connected using 400 3000F super capacitor storage unit, obtained voltage range is
520V-1080V, the capacitance of the super capacitor module after connecting is 7.5F, according to formula W=0.5CU2It can calculate
The electricity that super capacitor module can store is 1.18 degree, can meet the requirement for drawing subway train 1000m.
, it is necessary to will by bidirectional DC-DC converter 22 when super capacitor energy storage device 21 is powered to subway train
Voltage rises to 1500V, similarly, when needing to charge to super capacitor energy storage device 21, it is necessary to pass through bidirectional DC-DC converter
Voltage is down to voltage when super capacitor energy storage device 21 charges by device 22, until full of untill.Assuming that a bi-directional DC-DC becomes
The power of parallel operation 22 is 200KW, is provided with 4 groups of bidirectional DC-DC converters 22, and its traction power can reach 800KW, and one
The traction power of subway train is typically below 400KW at low speeds, so can meet to require completely.
In summary, a kind of train traction system provided by the utility model, the recovery of energy and sharp again can both be realized
With the saving energy；The energy of recovery can be used to energize to train in the state of emergency again, it is convenient train is carried out maintenance and
Realize the orderly function of train.
Embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, it is every
The equivalents made using the utility model specification and accompanying drawing content, or directly or indirectly it is used in the technology neck of correlation
Domain, similarly it is included in scope of patent protection of the present utility model.
Claims (7)
1. a kind of train traction system, including power network, energy-storage system, current transformer and controller, it is characterised in that on the power network
Be respectively equipped with high-speed circuit breaker, the first tie point and the second tie point, first tie point be located at the high-speed circuit breaker and
Between second tie point, the power network is electrically connected by the first tie point with the energy-storage system, and the power network connects by second
Contact electrically connects with the current transformer, and the controller communicates to connect with the energy-storage system, and the energy-storage system passes through described
Current transformer electrically connects with train, and the energy-storage system includes super capacitor energy storage device and bidirectional DC-DC converter, described super
Capacitive energy storage device electrically connects with the bidirectional DC-DC converter.
2. train traction system according to claim 1, it is characterised in that the super capacitor energy storage device includes two
Super capacitor storage unit above, more than two super capacitor storage unit settings in series or in parallel.
3. train traction system according to claim 1, it is characterised in that the controller is provided with interface data list
Member, the energy-storage system are communicated to connect by MVB and the Interface Data Unit.
4. train traction system according to claim 1, it is characterised in that the energy-storage system also includes current sensor
And voltage sensor, the current sensor and voltage sensor electrically connect with the DC-DC converter respectively.
5. train traction system according to claim 1, it is characterised in that the energy-storage system also includes contactor and melted
Disconnected device, the contactor and fuse electrically connect with the DC-DC converter respectively.
6. train traction system according to claim 1, it is characterised in that the controller includes chip and display screen,
The chip electrically connects with the display screen.
7. train traction system according to claim 1, it is characterised in that the energy-storage system includes more than two double
To DC-DC converter, more than two bidirectional DC-DC converters electrically connect with the super capacitor energy storage device respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720694995.5U CN206870871U (en) | 2017-06-15 | 2017-06-15 | A kind of train traction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720694995.5U CN206870871U (en) | 2017-06-15 | 2017-06-15 | A kind of train traction system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206870871U true CN206870871U (en) | 2018-01-12 |
Family
ID=61333992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720694995.5U Active CN206870871U (en) | 2017-06-15 | 2017-06-15 | A kind of train traction system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206870871U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115610280A (en) * | 2022-12-20 | 2023-01-17 | 长沙润伟机电科技有限责任公司 | Comprehensive monitoring and protecting system for rail transit traction power supply |
| CN116317006A (en) * | 2023-04-04 | 2023-06-23 | 重庆跃达新能源有限公司 | Power failure protection system and method based on super capacitor |
-
2017
- 2017-06-15 CN CN201720694995.5U patent/CN206870871U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115610280A (en) * | 2022-12-20 | 2023-01-17 | 长沙润伟机电科技有限责任公司 | Comprehensive monitoring and protecting system for rail transit traction power supply |
| CN116317006A (en) * | 2023-04-04 | 2023-06-23 | 重庆跃达新能源有限公司 | Power failure protection system and method based on super capacitor |
| CN116317006B (en) * | 2023-04-04 | 2023-09-12 | 重庆跃达新能源有限公司 | Power failure protection system and method based on super capacitor |
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