CN105256675A - Electric transmission system of dual-power metro grinding car and power switching method - Google Patents
Electric transmission system of dual-power metro grinding car and power switching method Download PDFInfo
- Publication number
- CN105256675A CN105256675A CN201510735194.4A CN201510735194A CN105256675A CN 105256675 A CN105256675 A CN 105256675A CN 201510735194 A CN201510735194 A CN 201510735194A CN 105256675 A CN105256675 A CN 105256675A
- Authority
- CN
- China
- Prior art keywords
- voltage
- generation device
- contact net
- output
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Control Of Eletrric Generators (AREA)
Abstract
The invention discloses an electric transmission system of a dual-power metro grinding car. The electric transmission system comprises a high-voltage electric appliance box, an electric reactor, a traction inverter, a traction motor, an auxiliary power generator, a three-phase rectifier cabinet, a grinding inverter and a grinding device, wherein power can be supplied to the traction motor and the grinding inverter through a contact grid, or power can be supplied to the traction motor and the grinding device through the auxiliary power generator. The invention further provides a power switching method for the dual-power metro grinding car. According to the method, seamless switching of the power supply between the contact grid and the auxiliary power generator can be realized. The electric transmission system has the advantages of being convenient to maintain, lower in energy consumption and pollution, and friendly to the environment; the power switching method has the advantages that the dual-power metro grinding car needs not to be shut down in the switching process, the flexibility and the convenience are guaranteed, the voltage is kept stable during the switching of the power supply, and the normal operation of the dual-power metro grinding car is not impacted.
Description
Technical field
The present invention relates to railway traffic engineering mechanical car power drive system technical field, particularly relate to a kind of double dynamical subway grinding machine electric drive system and powershift method.
Background technology
Along with the great development of my urban track traffic, the maintenance of subway line is had higher requirement.At present, domestic grinding machine adopts diesel-driven generator+hydraulic transmission system, by diesel-driven generator for grinding machine provides walking power, by hydraulic transmission system for grinding apparatus provides polishing power, but the existing electrical system of this transmission system, there is again fluid power pipe-line system, system complex, safeguard inconvenient.Abroad have and simple utilize diesel-driven generator as the electric drive system of power source, but it adopts diesel-driven generator to provide power, a large amount of waste gas can be produced, particularly in the space that underground railway track is relatively inaccessible, more be unfavorable for the dissipation of waste gas, have a strong impact on the environment of Metro Space.Therefore, be necessary that the transmission system of iron grinding machine is over the ground improved.
Summary of the invention
The technical problem to be solved in the present invention is just: the technical problem existed for prior art, the invention provides a kind of easy to maintenance, energy conservation, decreasing pollution, the double dynamical subway grinding machine electric drive system of protection of the environment and powershift method.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is: a kind of double dynamical subway grinding machine electric drive system, comprises high-voltage electrical box, reactor, traction invertor, traction electric machine, auxiliary generation device, three phase rectifier cabinet, polishing inverter and sanding apparatus;
High voltage bus positive pole and the first diode VD1 forward of described high-voltage electrical box are connected and are connected with contact net by primary cut-out QF1 afterwards, high voltage bus minus earth, and the output of described high-voltage electrical box is connected with the input of reactor;
The output of described reactor is connected with traction invertor;
The interchange end of described traction invertor is connected with traction electric machine, is that alternating current is supplied to traction electric machine by the DC conversion of electrical network;
The output of described auxiliary generation device is connected with the interchange end of three phase rectifier cabinet;
The DC terminal of described three phase rectifier cabinet is connected rear in parallel with the high voltage bus of high-voltage electrical box by auxiliary circuit breaker KM1 with the second diode VD2 forward;
The DC terminal of described polishing inverter is in parallel with the high voltage bus of voltage electric appliance box, exchanges end and is connected with sanding apparatus.
As a further improvement on the present invention, also comprise the subordinate inverter in parallel with the DC terminal of polishing inverter, the interchange end of described subordinate inverter is connected with assisting electrical network.
As a further improvement on the present invention, also comprise braking resistor, described braking resistor is in parallel with the DC terminal of described traction invertor.
As a further improvement on the present invention, described auxiliary generation device comprises diesel engine, by diesel-driven threephase generator and the excitation controller controlling threephase generator power output, the output of threephase generator is connected with the interchange end of described three phase rectifier cabinet.
As a further improvement on the present invention, described high-voltage electrical box comprises charging and discharging circuit, and the input of described charging and discharging circuit is connected with high voltage bus, and output is connected with the input of reactor as the output of voltage electric appliance box.A kind of double dynamical subway grinding machine powershift method, comprises contact net to the handoff procedure of auxiliary generation device and auxiliary generation device to the handoff procedure of contact net;
Described contact net comprises to the handoff procedure of auxiliary generation device:
S1.1. closed auxiliary circuit breaker KM1, starts auxiliary generation device;
S1.2. progressively raised the output voltage of threephase generator by excitation controller, and judge that the output voltage of threephase generator is whether higher than the voltage of contact net, is jump to step S1.3, otherwise continues to perform step S1.2;
S1.3. disconnect primary cut-out QF1, complete by contact net to the handoff procedure of auxiliary generation device;
Described auxiliary generation device comprises to the handoff procedure of contact net:
S2.1. judge that the output voltage of auxiliary generation device is whether lower than the voltage of contact net, is jump to step S2.2, otherwise jumps to step S2.3;
S2.2. progressively raised the output voltage of threephase generator by excitation controller, and judge that the output voltage of threephase generator is whether higher than the voltage of contact net, is jump to step S2.3, otherwise continues to perform step S2.2;
S2.3. closed high circuit breaker Q F1;
S2.4. progressively being reduced the output voltage of threephase generator by excitation controller, and judge that whether the output voltage of threephase generator is lower than contact net voltage, is jump to step S2.5, otherwise continues to perform step S2.4;
S2.5. block the excitation controller of auxiliary generation device, disconnect auxiliary circuit breaker KM1, threephase generator stops exporting, and completes the handoff procedure of auxiliary generation device to contact net.
Compared with prior art, the invention has the advantages that:
1, the present invention only has a set of electrical system, and eliminate hydraulic transmission system, layout is clear, easy to maintenance.
2, the present invention has contact net to power and auxiliary generation device two power supplies, when contact net is powered, need not enable auxiliary generation device, decrease the pollution to environment, save the energy; When not powered by contact net, can auxiliary generation device be enabled, ensure that subway grinding machine can be applicable to various working environment.
3, the present invention can realize the seamless switching between contact net is powered and auxiliary generation device is powered, and switches flexible.
Accompanying drawing explanation
Fig. 1 is the present invention's double dynamical subway grinding machine electric drive system schematic diagram.
Fig. 2 is the present invention's double dynamical subway grinding machine powershift flow chart.
Detailed description of the invention
Below in conjunction with Figure of description and concrete preferred embodiment, the invention will be further described, but protection domain not thereby limiting the invention.
Double dynamical grinding machine is by the fixing marshalling of two joints, and front truck is tractor, and rear car is grinding machine, and electric drive system is all installed on front truck.As shown in Figure 1, a kind of double dynamical subway grinding machine electric drive system of the present invention, comprises high-voltage electrical box, reactor, traction invertor, traction electric machine, auxiliary generation device, three phase rectifier cabinet, polishing inverter and sanding apparatus; High voltage bus positive pole and the first diode VD1 forward of high-voltage electrical box are connected and are connected with contact net by primary cut-out QF1 afterwards, high voltage bus minus earth, and the output of high-voltage electrical box is connected with the input of reactor; The output of reactor is connected with traction invertor; The interchange end of traction invertor is connected with traction electric machine, is that alternating current is supplied to traction electric machine by the DC conversion of electrical network; The output of auxiliary generation device is connected with the interchange end of three phase rectifier cabinet; The DC terminal of three phase rectifier cabinet is connected rear in parallel with the high voltage bus of high-voltage electrical box by auxiliary circuit breaker KM1 with the second diode VD2 forward; The DC terminal of polishing inverter is in parallel with the high voltage bus of voltage electric appliance box, exchanges end and is connected with sanding apparatus.
In the present embodiment, also comprise the subordinate inverter in parallel with the DC terminal of polishing inverter, the interchange end of subordinate inverter is connected with assisting electrical network.Also comprise braking resistor, braking resistor is in parallel with the DC terminal of traction invertor.Auxiliary generation device comprises diesel engine, by diesel-driven threephase generator and the excitation controller controlling threephase generator power output, the output of threephase generator is connected with the interchange end of three phase rectifier cabinet.High-voltage electrical box comprises charging and discharging circuit, and the input of charging and discharging circuit is connected with high voltage bus, and output is connected with the input of reactor as the output of voltage electric appliance box.
In the present embodiment, contact net provides DC1500V power supply, when contact net is powered, primary cut-out QF1 closes, and auxiliary circuit breaker KM1 disconnects, by Direct Torque Control mode, the DC1500V power supply of contact net is supplied to traction electric machine, for subway grinding machine provides walking power.Simultaneously, the polishing inverter of grinding machine and subordinate inverter are all in parallel with the dc bus of high-voltage electrical box, the alternating current that the DC1500V power supply that contact net provides exports 3AC440V through polishing inverter drives sanding apparatus, and the DC1500V power supply that contact net provides exports the alternating current of 3AC380V for auxiliary equipment through subordinate inverter.When auxiliary generation device is powered, primary cut-out QF1 disconnects, and auxiliary circuit breaker KM1 closes, and is that traction electric machine, sanding apparatus and auxiliary equipment are powered by auxiliary generation device.
In the present embodiment, primary cut-out QF1 and auxiliary circuit breaker KM1 is high-speed circuit breaker.On the dc bus of high-voltage electrical box, be also provided with 2 voltage monitoring unit BV1 and BV2,3 current monitoring unit B C1, BC2 and BC3.Voltage monitoring unit BV1 is arranged between high voltage bus and the contact point of contact net, for monitoring the voltage of high-voltage electrical box contact net when contact net is powered.Voltage monitoring unit BV2 is arranged between the tie point of the output of three phase rectifier cabinet and the high voltage bus of high-voltage electrical box, for monitoring when auxiliary generation device is powered, and the output voltage of three phase rectifier cabinet.Current monitoring unit B C1 be connected on high voltage bus positive level first diode VD1 positive pole and between high-voltage electrical box and the tie point of contact net, for monitoring the electric current when contact net is powered.Current monitoring unit B C2 is connected on the tie point of high voltage bus positive level three phase rectifier cabinet and high voltage bus, and between polishing inverter and the tie point of high voltage bus, for monitoring electric current when auxiliary generation device is powered.Current monitoring unit B C3 is connected on the tie point of high voltage bus negative pole three phase rectifier cabinet and high voltage bus, and between polishing inverter and the tie point of high voltage bus, for monitoring the electric current of high voltage bus negative pole.Between the output of three phase rectifier cabinet, being also provided with the voltage monitoring unit BV3 for monitoring three phase rectifier cabinet output voltage, being also provided with the current monitoring unit B C4 for monitoring three phase rectifier cabinet output current at the output head anode of three phase rectifier cabinet.
In the present embodiment, traction invertor comprises the unsteady flow module of 2 groups of three-phase brachium pontis and over-voltage suppression copped wave brachium pontis, be integrated with 8 two-tube IGBT elements of 1700V/800A, each unsteady flow module drive one turns round 2 traction electric machines on frame, traction invertor adopts DCU control strategy, can realize inversion output and over-voltage suppression copped wave function.
As shown in Figure 2, a kind of double dynamical subway grinding machine powershift method of the present invention, comprises contact net to the handoff procedure of auxiliary generation device and auxiliary generation device to the handoff procedure of contact net.
Contact net comprises to the handoff procedure of auxiliary generation device: S1.1. closes auxiliary circuit breaker KM1, starts auxiliary generation device; S1.2. progressively raised the output voltage of threephase generator by excitation controller, and judge that the output voltage of threephase generator is whether higher than the voltage of contact net, is jump to step S1.3, otherwise continues to perform step S1.2; S1.3. disconnect primary cut-out QF1, complete by contact net to the handoff procedure of auxiliary generation device;
Auxiliary generation device comprises to the handoff procedure of contact net: S2.1. judges that the output voltage of auxiliary generation device is whether lower than the voltage of contact net, is jump to step S2.2, otherwise jumps to step S2.3; S2.2. progressively raised the output voltage of threephase generator by excitation controller, and judge that the output voltage of threephase generator is whether higher than the voltage of contact net, is jump to step S2.3, otherwise continues to perform step S2.2; S2.3. closed high circuit breaker Q F1; S2.4. progressively being reduced the output voltage of threephase generator by excitation controller, and judge that whether the output voltage of threephase generator is lower than contact net voltage, is jump to step S2.5, otherwise continues to perform step S2.4; S2.5. block the excitation controller of auxiliary generation device, disconnect auxiliary circuit breaker KM1, threephase generator stops exporting, and completes the handoff procedure of auxiliary generation device to contact net.
At the present embodiment contact net in the handoff procedure of auxiliary generation device, first the output voltage of auxiliary generation device will be raised, when voltage higher than contact net of the output voltage of auxiliary generation device, in theory, contact net is to the electric current of high-voltage electrical box, namely the electric current of current monitoring unit B C1 is close to 0, now, traction invertor, polishing inverter and subordinate inverter are powered by auxiliary generation device, disconnect primary cut-out QF1, namely complete and supply power to by contact net the switching that auxiliary power supply powers.
In the handoff procedure of auxiliary generation device to contact net, first judge that the output voltage of auxiliary generation device is whether higher than the voltage of contact net, when voltage lower than contact net of the output voltage of auxiliary generation device, need first the output voltage of auxiliary generation device to be increased to the voltage higher than contact net.When the output voltage of auxiliary generation device is higher than contact net voltage, closed high circuit breaker Q F1, now, contact net is to the electric current of potential circuit case in theory, namely the electric current of current monitoring unit B C1 is close to 0, progressively reduce the output voltage of auxiliary generation device again, when voltage lower than contact net of the output voltage of auxiliary generation device, traction invertor, polishing inverter and subordinate inverter are powered by contact net, the output current of auxiliary generation device, namely the electric current of current monitoring unit B C4 is in theory close to 0, disconnect auxiliary circuit breaker KM1, block the excitation of the excitation controller of auxiliary generation device, auxiliary generator stops exporting, complete the switching being supplied power to contact power supply by auxiliary generation device.Power switching mode of the present invention can ensure when switching, and traction electric machine, sanding apparatus and servicing unit are without the need to shutting down, and supply voltage conversion steadily, can not produce fluctuating widely of voltage, can ensure that equipment runs continually and steadily.
Above-mentioned just preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention.Therefore, every content not departing from technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solution of the present invention protection.
Claims (6)
1. a double dynamical subway grinding machine electric drive system, is characterized in that: comprise high-voltage electrical box, reactor, traction invertor, traction electric machine, auxiliary generation device, three phase rectifier cabinet, polishing inverter and sanding apparatus;
High voltage bus positive pole and the first diode VD1 forward of described high-voltage electrical box are connected and are connected with contact net by primary cut-out QF1 afterwards, high voltage bus minus earth, and the output of described high-voltage electrical box is connected with the input of reactor;
The output of described reactor is connected with traction invertor;
The interchange end of described traction invertor is connected with traction electric machine, is that alternating current is supplied to traction electric machine by the DC conversion of electrical network;
The output of described auxiliary generation device is connected with the interchange end of three phase rectifier cabinet;
The DC terminal of described three phase rectifier cabinet is connected rear in parallel with the high voltage bus of high-voltage electrical box by auxiliary circuit breaker KM1 with the second diode VD2 forward;
The DC terminal of described polishing inverter is in parallel with the high voltage bus of voltage electric appliance box, exchanges end and is connected with sanding apparatus.
2. double dynamical subway grinding machine electric drive system according to claim 1, is characterized in that: also comprise the subordinate inverter in parallel with the DC terminal of polishing inverter, the interchange end of described subordinate inverter is connected with assisting electrical network.
3. double dynamical subway grinding machine electric drive system according to claim 2, it is characterized in that: also comprise braking resistor, described braking resistor is in parallel with the DC terminal of described traction invertor.
4. the double dynamical subway grinding machine electric drive system according to claim 1 or 2 or 3, it is characterized in that: described auxiliary generation device comprises diesel engine, by diesel-driven threephase generator and the excitation controller controlling threephase generator power output, the output of threephase generator is connected with the interchange end of described three phase rectifier cabinet.
5. double dynamical subway grinding machine electric drive system according to claim 4, it is characterized in that: described high-voltage electrical box comprises charging and discharging circuit, the input of described charging and discharging circuit is connected with high voltage bus, and output is connected with the input of reactor as the output of voltage electric appliance box.
6. the double dynamical subway grinding machine powershift method according to any one of claim 1 to 5, is characterized in that, comprises contact net to the handoff procedure of auxiliary generation device and auxiliary generation device to the handoff procedure of contact net;
Described contact net comprises to the handoff procedure of auxiliary generation device:
S1.1. closed auxiliary circuit breaker KM1, starts auxiliary generation device;
S1.2. progressively raised the output voltage of threephase generator by excitation controller, and judge that the output voltage of threephase generator is whether higher than the voltage of contact net, is jump to step S1.3, otherwise continues to perform step S1.2;
S1.3. disconnect primary cut-out QF1, complete by contact net to the handoff procedure of auxiliary generation device;
Described auxiliary generation device comprises to the handoff procedure of contact net:
S2.1. judge that the output voltage of auxiliary generation device is whether lower than the voltage of contact net, is jump to step S2.2, otherwise jumps to step S2.3;
S2.2. progressively raised the output voltage of threephase generator by excitation controller, and judge that the output voltage of threephase generator is whether higher than the voltage of contact net, is jump to step S2.3, otherwise continues to perform step S2.2;
S2.3. closed high circuit breaker Q F1;
S2.4. progressively being reduced the output voltage of threephase generator by excitation controller, and judge that whether the output voltage of threephase generator is lower than contact net voltage, is jump to step S2.5, otherwise continues to perform step S2.4;
S2.5. block the excitation controller of auxiliary generation device, disconnect auxiliary circuit breaker KM1, threephase generator stops exporting, and completes the handoff procedure of auxiliary generation device to contact net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510735194.4A CN105256675A (en) | 2015-11-03 | 2015-11-03 | Electric transmission system of dual-power metro grinding car and power switching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510735194.4A CN105256675A (en) | 2015-11-03 | 2015-11-03 | Electric transmission system of dual-power metro grinding car and power switching method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105256675A true CN105256675A (en) | 2016-01-20 |
Family
ID=55096591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510735194.4A Pending CN105256675A (en) | 2015-11-03 | 2015-11-03 | Electric transmission system of dual-power metro grinding car and power switching method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105256675A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106004891A (en) * | 2016-07-27 | 2016-10-12 | 中车大连机车车辆有限公司 | Traction invertor control way |
| CN106059327A (en) * | 2016-07-18 | 2016-10-26 | 株洲中车时代电气股份有限公司 | Train power supply main circuit |
| CN107554299A (en) * | 2017-09-20 | 2018-01-09 | 株洲时代电子技术有限公司 | A kind of railway engineering mechanical mixture power source system |
| CN107554308A (en) * | 2017-09-20 | 2018-01-09 | 株洲时代电子技术有限公司 | A kind of railway engineering mechanical mixture power source switching system |
| CN107618379A (en) * | 2017-09-20 | 2018-01-23 | 株洲时代电子技术有限公司 | A kind of railway engineering mechanical mixture power source method for handover control |
| CN107650690A (en) * | 2017-09-20 | 2018-02-02 | 株洲时代电子技术有限公司 | A kind of railway engineering mechanical mixture power operated control method |
| CN109980767A (en) * | 2017-12-27 | 2019-07-05 | 株洲中车时代电气股份有限公司 | A kind of double dynamical powering mode seamless handover method of locomotive |
| CN110176876A (en) * | 2019-06-10 | 2019-08-27 | 长沙瀚鹏电子技术有限公司 | A kind of steel rail grinding operation-control system |
| CN114633640A (en) * | 2022-01-17 | 2022-06-17 | 中车青岛四方机车车辆股份有限公司 | Power switching system and method of railway vehicle and railway vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005117819A (en) * | 2003-10-09 | 2005-04-28 | Toshiba Corp | Power conversion device for electric vehicle |
| CN103213584A (en) * | 2012-07-12 | 2013-07-24 | 金鹰重型工程机械有限公司 | Rail double-power working vehicle |
| CN203557968U (en) * | 2013-11-22 | 2014-04-23 | 永济新时速电机电器有限责任公司 | Dual-power track car traction system |
| CN203611984U (en) * | 2013-12-16 | 2014-05-28 | 南车青岛四方机车车辆股份有限公司 | Diesel and electric hybrid railway vehicle |
| CN104742918A (en) * | 2015-03-30 | 2015-07-01 | 株洲时代电子技术有限公司 | Dual-power subway electric-drive steel rail grinding car and power switching method thereof |
| CN104859668A (en) * | 2015-02-13 | 2015-08-26 | 株洲南车时代电气股份有限公司 | Energy storage type traction system |
-
2015
- 2015-11-03 CN CN201510735194.4A patent/CN105256675A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005117819A (en) * | 2003-10-09 | 2005-04-28 | Toshiba Corp | Power conversion device for electric vehicle |
| CN103213584A (en) * | 2012-07-12 | 2013-07-24 | 金鹰重型工程机械有限公司 | Rail double-power working vehicle |
| CN203557968U (en) * | 2013-11-22 | 2014-04-23 | 永济新时速电机电器有限责任公司 | Dual-power track car traction system |
| CN203611984U (en) * | 2013-12-16 | 2014-05-28 | 南车青岛四方机车车辆股份有限公司 | Diesel and electric hybrid railway vehicle |
| CN104859668A (en) * | 2015-02-13 | 2015-08-26 | 株洲南车时代电气股份有限公司 | Energy storage type traction system |
| CN104742918A (en) * | 2015-03-30 | 2015-07-01 | 株洲时代电子技术有限公司 | Dual-power subway electric-drive steel rail grinding car and power switching method thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059327A (en) * | 2016-07-18 | 2016-10-26 | 株洲中车时代电气股份有限公司 | Train power supply main circuit |
| CN106004891A (en) * | 2016-07-27 | 2016-10-12 | 中车大连机车车辆有限公司 | Traction invertor control way |
| CN107554299A (en) * | 2017-09-20 | 2018-01-09 | 株洲时代电子技术有限公司 | A kind of railway engineering mechanical mixture power source system |
| CN107554308A (en) * | 2017-09-20 | 2018-01-09 | 株洲时代电子技术有限公司 | A kind of railway engineering mechanical mixture power source switching system |
| CN107618379A (en) * | 2017-09-20 | 2018-01-23 | 株洲时代电子技术有限公司 | A kind of railway engineering mechanical mixture power source method for handover control |
| CN107650690A (en) * | 2017-09-20 | 2018-02-02 | 株洲时代电子技术有限公司 | A kind of railway engineering mechanical mixture power operated control method |
| CN109980767A (en) * | 2017-12-27 | 2019-07-05 | 株洲中车时代电气股份有限公司 | A kind of double dynamical powering mode seamless handover method of locomotive |
| CN110176876A (en) * | 2019-06-10 | 2019-08-27 | 长沙瀚鹏电子技术有限公司 | A kind of steel rail grinding operation-control system |
| CN114633640A (en) * | 2022-01-17 | 2022-06-17 | 中车青岛四方机车车辆股份有限公司 | Power switching system and method of railway vehicle and railway vehicle |
| CN114633640B (en) * | 2022-01-17 | 2023-09-26 | 中车青岛四方机车车辆股份有限公司 | Power switching system and method of railway vehicle and railway vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105256675A (en) | Electric transmission system of dual-power metro grinding car and power switching method | |
| CN103481787B (en) | The motor train unit traction system of contact system, power bag and closed-center system hybrid power supply | |
| CN103350647B (en) | A kind of motor train unit traction system of contact net and energy storage device hybrid power supply | |
| CN103496327B (en) | The motor train unit traction system of a kind of power bag and closed-center system hybrid power supply | |
| CN203496891U (en) | Dual-power supply system of railway vehicle | |
| CN107380187B (en) | Rail traffic regenerating braking energy comprehensive recycling device and method | |
| CN103311950B (en) | City railway train regenerating braking energy absorbs system and method | |
| CN203119680U (en) | Test system of flywheel storage energy device | |
| CN102638155B (en) | Centralized auxiliary converter | |
| CN203372078U (en) | Motor train unit traction system achieving hybrid power supply of overhead line system, power pack and energy storage device | |
| CN206317824U (en) | Track traffic regenerating braking energy comprehensive recycling device | |
| WO2017185715A1 (en) | Urban rail transit traction system | |
| CN101295939A (en) | Control apparatus of power conversion system | |
| CN204517696U (en) | Based on the track traffic regenerative braking energy feedback two-way current conversion circuit of IGBT | |
| CN110696846A (en) | Multi-power-source railway vehicle and main and auxiliary transmission system and method thereof | |
| CN202764965U (en) | Traction system of light rail vehicle (LRV) | |
| CN103419670A (en) | Motor train unit traction system powered by energy storing device | |
| CN104192014B (en) | Adopt the battery trolley locomotive of unified Voltage-output and two-way DC/DC module | |
| CN105186918A (en) | Track traffic regenerative braking energy feedback bidirectional conversion circuit based on IGBT | |
| CN105235546B (en) | A kind of pure electronic AC Drive shunter electrical main drive system of 1000kW power grades | |
| CN103587426B (en) | Light rail vehicle traction system | |
| CN203372079U (en) | Motor train unit traction system powered by contact net and energy storing device in hybrid mode | |
| CN105150864A (en) | Double-source trolley bus power system and control system | |
| CN109421548B (en) | Control method of main-auxiliary integrated traction system | |
| CN104218820A (en) | Four-quadrant frequency converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160120 |
|
| RJ01 | Rejection of invention patent application after publication |