CN211106982U - Flywheel type regenerative braking energy recovery system applied to rail transit - Google Patents
Flywheel type regenerative braking energy recovery system applied to rail transit Download PDFInfo
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- CN211106982U CN211106982U CN201921976359.7U CN201921976359U CN211106982U CN 211106982 U CN211106982 U CN 211106982U CN 201921976359 U CN201921976359 U CN 201921976359U CN 211106982 U CN211106982 U CN 211106982U
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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
Abstract
The utility model relates to a be applied to track traffic's flywheel type regenerative braking energy recovery system, including alternating current voltage acquisition module, direct current voltage acquisition module, energy management unit, circuit breaker cabinet, inlet wire cabinet, drive cabinet, flywheel, SCADA system, the inlet wire cabinet pass through the circuit breaker cabinet and link to each other with the DC power supply system, the drive cabinet links to each other with the inlet wire cabinet, the flywheel links to each other with the drive cabinet, the SCADA system links to each other with circuit breaker cabinet, inlet wire cabinet and drive cabinet respectively, the energy management unit passes through the CAN communication and links to each other with the drive cabinet, alternating current voltage acquisition module and direct current voltage acquisition module insert the logic control unit in the energy management unit. The utility model can effectively utilize the regenerative electric energy generated during the braking of the locomotive, ensure the electric braking of the train, save energy and reduce consumption; stabilizing the traction net pressure; the abrasion of the brake shoe is reduced, and dust is reduced; the brake resistor is replaced, and the burden of the ventilation air conditioner is reduced; improve the rail potential and reduce the stray current.
Description
Technical Field
The utility model relates to an urban rail transit regenerative braking energy recovery system specifically is a flywheel type regenerative braking energy recovery system who is applied to rail transit.
Background
In urban rail transit, due to the fact that the number of stations is large, the distance between stations is short, and vehicles are frequently started to brake, a large amount of regenerative braking energy can be generated. According to statistics, the regenerative braking energy can account for 30-40% of the traction energy, 20-80% of the energy can be absorbed and utilized by adjacent locomotives in a traction state, and the rest energy is consumed by heating of a braking resistor or a braking machine of a train, so that energy waste is caused. At present, a resistance energy consumption type, a capacitance energy storage type, a flywheel energy storage type and inversion feedback are four main braking energy absorption schemes.
The resistance energy consumption type is that the regenerative braking energy is consumed on the absorption resistance to generate heat in a centralized way, the regenerative energy cannot be effectively utilized, the environmental temperature is increased, and the ventilation burden is increased.
The capacitor energy storage type capacitor has the advantages of large occupied area, easy aging of a capacitor bank in a frequent charge-discharge state, short service life, large maintenance workload, high operation cost and increased loop impedance parameters.
Inversion feedback type: harmonic waves can affect other equipment, an alternating current power grid is affected, energy conservation maximization cannot be achieved, the circuit structure is complex, and maintenance cost is high.
The flywheel energy storage type is pollution-free, has ultrahigh charging and discharging times, long service life, good energy-saving effect, no influence on an alternating current side, can also stabilize network voltage, realizes localization at present and has relatively low cost.
The patent No. 201820301877.8, a chinese utility model, discloses a flywheel-based energy storage type subway regenerative braking energy recovery system, which comprises positive and negative switch cabinets and flywheel energy storage units, wherein the positive and negative switch cabinets are electrically connected with the flywheel energy storage units, more than 2 flywheel energy storage units are provided, and the flywheel energy storage units are connected with the flywheel energy storage units in parallel; the flywheel energy storage units are respectively provided with a DC/DC bidirectional converter and a flywheel, and the flywheel is provided with a flywheel driving cabinet and a high-speed motor; the flywheel driving cabinet is electrically connected with the energy management unit, the energy management unit is electrically connected with the voltage transformer, and the voltage transformer is arranged on the low-voltage side of the rectifier transformer; the recovery method realizes the bidirectional flow of energy by comparing the actual traction net pressure with the traction net pressure when no load exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a flywheel type regenerative braking energy recovery system applied to rail transit, which can effectively absorb the regenerative electric energy generated when the locomotive brakes, ensure the stable electric braking of the train, save energy and reduce consumption; providing a net pressure support, and stably drawing net pressure; the abrasion of the brake shoe is reduced, and dust is reduced; the brake resistor is replaced, and the burden of the ventilation air conditioner is reduced; improve the rail potential and reduce the stray current.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model provides a be applied to track traffic's flywheel type regenerative braking energy recovery system, includes alternating voltage acquisition module, direct voltage acquisition module, energy management unit, circuit breaker cabinet, inlet wire cabinet, drive cabinet, flywheel, SCADA system, the inlet wire cabinet pass through the circuit breaker cabinet and link to each other with the direct current power supply system, the drive cabinet links to each other with the inlet wire cabinet, the flywheel links to each other with the drive cabinet, the SCADA system links to each other with circuit breaker cabinet, inlet wire cabinet and drive cabinet respectively, the energy management unit passes through CAN communication and links to each other with the drive cabinet, alternating voltage acquisition module and direct voltage acquisition module insert the logic control unit in the energy management unit.
The flywheel is a GTR flywheel and mainly comprises a high-speed permanent magnet motor stator, a magnetic bearing system, a vacuum cavity, a needle bearing, a carbon fiber composite rotor and a shell; has the characteristics of short time, high frequency, ultra-long service life, quick response and the like.
Compared with the prior art, the utility model has the outstanding characteristics that:
the regenerative electric energy generated during the braking of the locomotive can be effectively absorbed and reused, the electric braking of the train can be ensured to be stably carried out, and the energy is saved and the consumption is reduced; providing a net pressure support, and stably drawing net pressure; the abrasion of the brake shoe is reduced, and dust is reduced; the brake resistor is replaced, and the burden of the ventilation air conditioner is reduced; improve the rail potential and reduce the stray current.
Furthermore, the utility model discloses preferred scheme as follows:
the incoming cabinet is provided with an isolating switch, and the driving cabinet is provided with a rectifying inverter. And the energy flow between the flywheel and the DC power supply system is realized.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
description of reference numerals: 1-alternating voltage acquisition module; 2-a direct current voltage acquisition module; 3-an energy management unit; 4-a circuit breaker cabinet; 5-a wire inlet cabinet; 6-a drive cabinet; 7-a flywheel; 8-SCADA system.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to fig. 1, a flywheel type regenerative braking energy recovery system applied to rail transit is composed of an alternating current voltage acquisition module 1, a direct current voltage acquisition module 2, an energy management unit 3, a circuit breaker cabinet 4, a line inlet cabinet 5, a driving cabinet 6, a flywheel 7 and an SCADA system 8, wherein the line inlet cabinet 5 is connected with a direct current power supply system through the circuit breaker cabinet 4, the driving cabinet 6 is connected with the line inlet cabinet 5, the flywheel 7 is connected with the driving cabinet 6, the SCADA system 8 is connected with the circuit breaker cabinet 4, the line inlet cabinet 5 and the driving cabinet 6 respectively, the energy management unit 3 is connected with the driving cabinet 6 through CAN communication, and the alternating current voltage acquisition module 1 and the direct current voltage acquisition module 2 are connected to a logic control unit in the energy management unit 3.
The flywheel 7 is a GTR flywheel and mainly comprises a high-speed permanent magnet motor stator, a magnetic bearing system, a vacuum cavity, a needle bearing, a carbon fiber composite rotor and a shell; it has the characteristics of short time, high frequency, ultra-long service life, quick response and the like.
The incoming cabinet 5 is provided with an isolating switch, the driving cabinet 6 is provided with a rectifying inverter, and energy flow between the flywheel 7 and the direct-current power supply system is realized.
The embodiment can effectively absorb and recycle the regenerative electric energy generated during locomotive braking, ensure the stable electric braking of the train, save energy and reduce consumption; providing a net pressure support, and stably drawing net pressure; the abrasion of the brake shoe is reduced, and dust is reduced; the brake resistor is replaced, and the burden of the ventilation air conditioner is reduced; improve the rail potential and reduce the stray current.
The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all structural equivalents made by using the contents of the specification and drawings are included in the scope of the present invention.
Claims (2)
1. The utility model provides a be applied to track traffic's flywheel type regenerative braking energy recovery system, includes alternating voltage acquisition module, direct voltage acquisition module, energy management unit, circuit breaker cabinet, inlet wire cabinet, drive cabinet, flywheel, SCADA system, its characterized in that: the system comprises an input cabinet, a drive cabinet, a flywheel, a circuit breaker cabinet, an input cabinet, an SCADA system, an energy management unit, an alternating voltage acquisition module and a direct voltage acquisition module, wherein the input cabinet is connected with a direct current power supply system through the circuit breaker cabinet, the drive cabinet is connected with the input cabinet, the flywheel is connected with the drive cabinet, the SCADA system is respectively connected with the circuit breaker cabinet, the input cabinet and the drive cabinet, the energy management unit is connected with the drive cabinet through CAN communication, and the alternating voltage acquisition module and the.
2. The flywheel type regenerative braking energy recovery system for rail transit of claim 1, wherein: the incoming cabinet is provided with an isolating switch, and the driving cabinet is provided with a rectifying inverter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921386546 | 2019-08-26 | ||
| CN201921386546X | 2019-08-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211106982U true CN211106982U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921976359.7U Active CN211106982U (en) | 2019-08-26 | 2019-11-15 | Flywheel type regenerative braking energy recovery system applied to rail transit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112448381A (en) * | 2020-12-15 | 2021-03-05 | 通号（长沙）轨道交通控制技术有限公司 | Method for reducing steel rail potential and stray current corrosion of urban rail power supply system |
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2019
- 2019-11-15 CN CN201921976359.7U patent/CN211106982U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112448381A (en) * | 2020-12-15 | 2021-03-05 | 通号（长沙）轨道交通控制技术有限公司 | Method for reducing steel rail potential and stray current corrosion of urban rail power supply system |
| CN112448381B (en) * | 2020-12-15 | 2023-03-03 | 通号（长沙）轨道交通控制技术有限公司 | Method for reducing steel rail potential and stray current corrosion of urban rail power supply system |
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