CN203482100U - Hybrid-power motor-train-unit traction converter suitable for multiple power-supply modes - Google Patents
Hybrid-power motor-train-unit traction converter suitable for multiple power-supply modes Download PDFInfo
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- CN203482100U CN203482100U CN201320364445.9U CN201320364445U CN203482100U CN 203482100 U CN203482100 U CN 203482100U CN 201320364445 U CN201320364445 U CN 201320364445U CN 203482100 U CN203482100 U CN 203482100U
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Abstract
The utility model provides a hybrid-power motor-train-unit traction converter suitable for multiple power-supply modes, and the traction converter comprises a traction transformer interface, a power pack interface, a first pre-charge device, a second pre-charge device, a rectifier, a direct-current link, and a traction invertor. The traction transformer interface is connected with the input end of the rectifier, and the power pack interface is connected with the input end of the rectifier. The direct-current link is in parallel connection to the direct-current bus of the output end of the rectifier. The output end of the rectifier is connected with the output end of the traction invertor. The output end of the traction invertor is used for connecting with a traction motor of a motor train unit. The first pre-charge device is disposed on a circuit between the secondary side of a traction transformer and the rectifier. The second pre-charge device is disposed on a circuit between the power pack interface and the rectifier. The traction converter provided by the utility model can operate on an electrification circuit and a non-electrification circuit at the same time, and can achieve self-rescue through the power pack and an energy storage device.
Description
Technical field
The utility model relates to rolling stock traction technique, relates in particular to a kind of hybrid power traction converter of motor train unit of applicable many powering modes.
Background technology
At present, railway line host will comprise electric railway and non-electrified railway.Electric railway adopts electric locomotive traction, traction substation is set along the railway, along railway erecting contact net, by the pantograph on rolling stock from contact line power taking, through converting backward rolling stock power supply.Non-electrified railway adopts diesel locomotive to provide power for rolling stock.
Existing motor train unit has traction convertor, and this traction convertor is the core of motor train unit drive system, is used to the traction electric machine power supply of motor train unit, by traction electric machine, provides driving dynamics for motor train unit.The traction convertor of motor train unit is single contact line powering mode, when electrified section fault appears in contact line, can not carry out and save oneself in time, and the operation that motor train unit cannot be on non-electrified railway circuit.In addition, in non-electrified section, the braking energy of rolling stock mainly consumes by the mode of brake resistance, causes the huge waste of the energy.
Utility model content
The utility model provides a kind of hybrid power traction converter of motor train unit of applicable many powering modes, the technological deficiency that can not move on non-electrified circuit for solving prior art traction converter of motor train unit.
The hybrid power traction converter of motor train unit of a kind of applicable many powering modes of hybrid power traction converter of motor train unit of applicable many powering modes that the utility model provides, comprises traction transformer interface, power packet interface, the first pre-charging device, the second pre-charging device, rectifier, DC link and traction invertor;
Described traction transformer interface is connected with the input of described rectifier, described power packet interface is connected with the input of described rectifier, described DC link is connected in parallel on the output DC bus of described rectifier, the output of described rectifier is connected with the output of described traction invertor, and the output of described traction invertor is for being connected with the traction electric machine of motor train unit;
Described the first pre-charging device is arranged on the circuit between described traction transformer interface and described rectifier, and described the second pre-charging device is arranged on the circuit between described power packet interface and described rectifier.
Traction converter of motor train unit as above, preferably, also comprises energy storage device interface, the 3rd pre-charging device and DC/DC chopper;
Described energy storage device interface is connected with described DC/DC chopper, and is connected in parallel on the output DC bus of described rectifier, and described the 3rd pre-charging device is arranged on the circuit between described energy storage device and described rectifier.
Traction converter of motor train unit as above, preferably, also comprised the overvoltage suppression circuit on the output DC bus that is connected in parallel on described rectifier, and described overvoltage suppression circuit comprises IGBT power device and the energy absorption resistance of series connection.
Traction converter of motor train unit as above, preferably, also comprises AuCT, and described AuCT is connected in parallel on the output DC bus of described rectifier.
Traction converter of motor train unit as above, preferably, described DC link comprises Support Capacitor and capacitor discharge resistance.
Traction converter of motor train unit as above, preferably, described the first pre-charging device, the second pre-charging device and the 3rd pre-charging device include main contactor, precharge contactor and pre-charge resistance;
Described main contactor is for controlling the break-make of main circuit, and described precharge contactor is for controlling described the first pre-charging device, the second pre-charging device and the 3rd pre-charging device to described Support Capacitor precharge respectively.
Traction converter of motor train unit as above, preferably, described DC/DC chopper comprises two IGBT power devices and a reactor;
After connecting, described two IGBT power devices are connected with reactor.
Traction converter of motor train unit as above, preferably, described energy storage device interface can be connected with storage battery, super capacitor, flywheel or fuel cell energy storage device.
Traction converter of motor train unit as above, preferably, described rectifier is four-quadrant rectifier.
The traction converter of motor train unit that the utility model provides, owing to being provided with two kinds of power supply interfaces of traction transformer interface and power packet interface simultaneously, establish, motor train unit can be operated on electrified circuit and non-electrified circuit simultaneously, and, when motor train unit is when electric fault appears in electrified circuit, the power that can provide by power bag is realized and being saved oneself, and guarantees the safety and stability of motor train unit operation.
Accompanying drawing explanation
The structural representation of the traction converter of motor train unit that Fig. 1 provides for the utility model embodiment;
The main circuit schematic diagram of the traction converter of motor train unit that Fig. 2 provides for the utility model embodiment.
Reference numeral:
1-traction transformer interface; 2-power packet interface; 3-energy storage device interface;
41-the first pre-charging device; 42-the second pre-charging device; 43-the 3rd pre-charging device;
5-rectifier; 6-DC link; 7-traction invertor;
8-DC/DC chopper; 9-overvoltage suppression circuit; 10-AuCT;
11-traction electric machine.
Embodiment
With reference to Fig. 1 and 2, the structural representation of the traction converter of motor train unit that Fig. 1 provides for the utility model embodiment; The main circuit schematic diagram of the traction converter of motor train unit that Fig. 2 provides for the utility model embodiment.
As illustrated in fig. 1 and 2, the traction converter of motor train unit that the present embodiment provides, comprises traction transformer interface 1, power packet interface 2, energy storage device interface 3, the first pre-charging device 41, the second pre-charging device 42, rectifier 5, DC link 6 and traction invertor 7.
The first pre-charging device 41 is arranged on the circuit between traction transformer interface 1 and rectifier 5, and the second pre-charging device 42 is arranged on the circuit between power packet interface 2 and rectifier 5.Wherein, the first charger 41 is identical with the second charger 42, and the first pre-charger 41 comprises the first main contactor LK1, the first precharge contactor K1 and the first pre-charge resistance R1.The second pre-charger 42 comprises the second main contactor LK2, the second precharge contactor K2 and the second pre-charge resistance R2.
When the middle dc voltage of DC link 6 is lower, can first closed the first precharge contactor K1, with the anti-paralleled diode of crossing the first pre-charge resistance R1 and becoming rectifier 5, Support Capacitor C1 is charged.After the voltage at Support Capacitor C1 two ends reaches certain value closed the first main contact LK1, disconnect the first precharge contactor K1, startup rectifier 5.Now, the second precharge contactor K2 and the second main contactor LK2 should remain open.
When the middle dc voltage of DC link 6 is lower, also can first closed the second precharge contactor K2, the anti-paralleled diode by the second pre-charge resistance R2 and rectifier 5 charges to Support Capacitor C1.After the voltage at Support Capacitor C1 two ends reaches certain value closed the second main contact LK2, disconnect the second precharge contactor K2.Now, the first precharge contactor K1 and the first main contactor LK1 should remain open.
In the present embodiment, rectifier 5 can be four-quadrant rectifier.Rectifier 5 comprises eight IGBT(Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) power device, be specially IGBT power device CV1-CV8, rectifier 5 is for realizing AC/DC(AC/DC) conversion, under contact line powering mode, rectifier 5 adopts four-quadrant rectifier, this four-quadrant rectifier adopts two level main circuit topologies, by phase shift pulse modulation technology, make the equivalent switching frequency of this rectifier 5 become the twice of single rectifier switch frequency, thereby greatly reduce the current harmonics of rectifier 5; Under power bag powering mode, can only utilize three-phase brachium pontis to carry out that diode is not controlled or four-quadrant rectification, to provide galvanic current to press.
The traction converter of motor train unit that the present embodiment provides, owing to being provided with traction transformer interface 1, power packet interface 2 and 3 three kinds of power supplies of energy storage device interface simultaneously, establish interface, motor train unit can be operated on electrified circuit and non-electrified circuit simultaneously, and, when motor train unit is when electric fault appears in electrified circuit, the power that can provide by power bag or energy storage device is realized and being saved oneself, and guarantees the safety and stability of motor train unit operation.
On the basis of above-described embodiment technical scheme, traction converter of motor train unit also comprises energy storage device interface 3, the 3rd pre-charging device 43 and DC/DC chopper 8.The 3rd pre-charging device 43 and the first pre-charging device 41, the second pre-charging device 42 are identical.Particularly, the 3rd pre-charging device 43 comprises the 3rd main contactor LK3, the 3rd precharge contactor K3 and the 3rd pre-charge resistance R3.
Particularly, energy storage device interface 3 is connected with DC/DC chopper 8, and is connected in parallel on the output DC bus of rectifier 5, and the 3rd pre-charging device 43 is arranged on the circuit between energy storage device interface 3 and rectifier 5.Energy storage device interface 3 can be connected with storage battery or super capacitor, also can with other energy-storage travelling wave tubes such as flywheel or fuel cell.
The 3rd main contactor LK3 is for controlling the break-make of main circuit, and the 3rd precharge contactor K3 controls respectively the 3rd pre-charge resistance R3 to Support Capacitor C1 precharge.When the middle dc voltage of DC link 6 is lower, first closed the 3rd precharge contactor K3, charges to middle Support Capacitor C1 with the anti-paralleled diode of crossing the 3rd pre-charge resistance R3, reactor L1 and IGNT power device BV1.After the voltage at middle Support Capacitor C1 two ends approaches energy-storage battery voltage, closed main contact K4, disconnection precharge contactor K3, then start DC/DC chopper 8.
DC/DC chopper 8 comprises two IGBT power device BV1, BV2 and a reactor L1.After connecting, two IGBT power device BV1, BV2 are connected with reactor L1.By different on-off modes, realize energy storage device is discharged and recharged to control, be specially: under power bag powering mode, vehicle is when traction state, if power bag underpower, energy storage device interface 3 carries out boosting rectifier control by DC/DC chopper 8, with output haulage capacity, to compensate the underpower of power bag; When vehicle is during in on-position, DC/DC chopper 8 is carried out to step-down control, to energy storage device charging, to absorb braking energy, realize energy recycling.The present embodiment can provide six kinds of powering modes: contact line powering mode, power bag powering mode, energy storage device powering mode, contact line+energy storage device powering mode, power bag+energy storage device powering mode, contact line+power bag+energy storage device powering mode, can adapt to the different transportation demands of varying environment.
In the present embodiment, cancelled hardware secondary filtering circuit, adopted without beat frequency control algolithm and eliminate the impact of DC side secondary pulsating voltage on current transformer outlet side, can alleviate traction converter of motor train unit weight, reduced costs.
On the basis of above-described embodiment technical scheme, further, traction converter of motor train unit also comprised the overvoltage suppression circuit 9 on the output DC bus that is connected in parallel on rectifier 5, overvoltage suppression circuit 9 comprises IGBT power device IV7 and the energy absorption resistance R ov of series connection, overvoltage suppression circuit 9 is for absorbing the instantaneous voltage spike of DC link 6, to guarantee the safety of IGBT power device in circuit.
Further, traction converter of motor train unit also comprises AuCT 10, AuCT 10 is connected in parallel on the output DC bus of rectifier 5, by DC link 6, is AuCT 10 power supplies, and AuCT 10 is for the assistant load power supply to motor train unit.
Finally it should be noted that: each embodiment, only in order to the technical solution of the utility model to be described, is not intended to limit above; Although the utility model is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (9)
1. a hybrid power traction converter of motor train unit for applicable many powering modes, is characterized in that, comprises traction transformer interface, power packet interface, the first pre-charging device, the second pre-charging device, rectifier, DC link and traction invertor;
Described traction transformer interface is connected with the input of described rectifier, described power packet interface is connected with the input of described rectifier, described DC link is connected in parallel on the output DC bus of described rectifier, the output of described rectifier is connected with the output of described traction invertor, and the output of described traction invertor is for being connected with the traction electric machine of motor train unit;
Described the first pre-charging device is arranged on the circuit between described traction transformer interface and described rectifier, and described the second pre-charging device is arranged on the circuit between described power packet interface and described rectifier.
2. traction converter of motor train unit according to claim 1, is characterized in that, also comprises energy storage device interface, the 3rd pre-charging device and DC/DC chopper;
Described energy storage device is connected with described DC/DC chopper, and is connected in parallel on the output DC bus of described rectifier, and described the 3rd pre-charging device is arranged on the circuit between described energy storage device and described rectifier.
3. traction converter of motor train unit according to claim 1 and 2, it is characterized in that, also comprised the overvoltage suppression circuit on the output DC bus that is connected in parallel on described rectifier, described overvoltage suppression circuit comprises IGBT power device and the energy absorption resistance of series connection.
4. traction converter of motor train unit according to claim 1 and 2, is characterized in that, also comprises AuCT, and described AuCT is connected in parallel on the output DC bus of described rectifier.
5. traction converter of motor train unit according to claim 1 and 2, is characterized in that, described DC link comprises Support Capacitor and capacitor discharge resistance.
6. traction converter of motor train unit according to claim 5, is characterized in that, described the first pre-charging device, the second pre-charging device and the 3rd pre-charging device include main contactor, precharge contactor and pre-charge resistance;
Described main contactor is for controlling the break-make of main circuit, and described precharge contactor is for controlling described the first pre-charging device, the second pre-charging device and the 3rd pre-charging device to described Support Capacitor precharge respectively.
7. traction converter of motor train unit according to claim 2, is characterized in that, described DC/DC chopper comprises two IGBT power devices and a reactor;
After connecting, described two IGBT power devices are connected with reactor.
8. traction converter of motor train unit according to claim 1 and 2, is characterized in that, described energy storage device interface can be connected with storage battery, super capacitor, flywheel or fuel cell energy storage device.
9. traction converter of motor train unit according to claim 1 and 2, is characterized in that, described rectifier is four-quadrant rectifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320364445.9U CN203482100U (en) | 2013-06-24 | 2013-06-24 | Hybrid-power motor-train-unit traction converter suitable for multiple power-supply modes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320364445.9U CN203482100U (en) | 2013-06-24 | 2013-06-24 | Hybrid-power motor-train-unit traction converter suitable for multiple power-supply modes |
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| CN203482100U true CN203482100U (en) | 2014-03-12 |
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| CN201320364445.9U Expired - Fee Related CN203482100U (en) | 2013-06-24 | 2013-06-24 | Hybrid-power motor-train-unit traction converter suitable for multiple power-supply modes |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401433A (en) * | 2013-06-24 | 2013-11-20 | 北京千驷驭电气有限公司 | Hybrid-power CRH (China Railway High-speed) traction converter suitable for multiple power-supply modes |
| CN104401335A (en) * | 2014-12-02 | 2015-03-11 | 南车资阳机车有限公司 | Main driving system of hybrid power locomotive |
| CN105425071A (en) * | 2015-11-27 | 2016-03-23 | 株洲时代装备技术有限责任公司 | Testing platform of super-capacitance energy storage apparatus and testing method thereof |
| WO2016123884A1 (en) * | 2015-02-05 | 2016-08-11 | 中车青岛四方车辆研究所有限公司 | Motor train unit traction control system |
| CN106100359A (en) * | 2016-06-28 | 2016-11-09 | 中车青岛四方车辆研究所有限公司 | Hand over orthogonal type EMUs AuCT and work process thereof |
| CN108790885A (en) * | 2018-06-14 | 2018-11-13 | 中车唐山机车车辆有限公司 | Electric car is met an urgent need tractive power supply system, method and electric car |
| CN110014854A (en) * | 2017-10-17 | 2019-07-16 | 株洲中车时代电气股份有限公司 | A kind of current transformer and electric drive system |
| WO2020010501A1 (en) * | 2018-07-10 | 2020-01-16 | 北京千驷驭电气有限公司 | Traction current transformer, and traction drive system for multiple unit train |
| ES2884003A1 (en) * | 2020-06-05 | 2021-12-09 | Patentes Talgo S L U | Hybrid power systems for railway assemblies (Machine-translation by Google Translate, not legally binding) |
| WO2023125018A1 (en) * | 2021-12-30 | 2023-07-06 | 中车永济电机有限公司 | Main circuit of diesel-electric dual-powered traction converter |
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2013
- 2013-06-24 CN CN201320364445.9U patent/CN203482100U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401433A (en) * | 2013-06-24 | 2013-11-20 | 北京千驷驭电气有限公司 | Hybrid-power CRH (China Railway High-speed) traction converter suitable for multiple power-supply modes |
| CN104401335A (en) * | 2014-12-02 | 2015-03-11 | 南车资阳机车有限公司 | Main driving system of hybrid power locomotive |
| WO2016123884A1 (en) * | 2015-02-05 | 2016-08-11 | 中车青岛四方车辆研究所有限公司 | Motor train unit traction control system |
| US9669732B2 (en) | 2015-02-05 | 2017-06-06 | Crrc Qingdao Sifang Rolling Stock Research Institute Co., Ltd. | Traction control system for electric multiple units |
| CN105425071A (en) * | 2015-11-27 | 2016-03-23 | 株洲时代装备技术有限责任公司 | Testing platform of super-capacitance energy storage apparatus and testing method thereof |
| CN106100359A (en) * | 2016-06-28 | 2016-11-09 | 中车青岛四方车辆研究所有限公司 | Hand over orthogonal type EMUs AuCT and work process thereof |
| CN110014854A (en) * | 2017-10-17 | 2019-07-16 | 株洲中车时代电气股份有限公司 | A kind of current transformer and electric drive system |
| CN110014854B (en) * | 2017-10-17 | 2021-06-22 | 株洲中车时代电气股份有限公司 | Converter and electric transmission system |
| CN108790885A (en) * | 2018-06-14 | 2018-11-13 | 中车唐山机车车辆有限公司 | Electric car is met an urgent need tractive power supply system, method and electric car |
| WO2020010501A1 (en) * | 2018-07-10 | 2020-01-16 | 北京千驷驭电气有限公司 | Traction current transformer, and traction drive system for multiple unit train |
| ES2884003A1 (en) * | 2020-06-05 | 2021-12-09 | Patentes Talgo S L U | Hybrid power systems for railway assemblies (Machine-translation by Google Translate, not legally binding) |
| WO2023125018A1 (en) * | 2021-12-30 | 2023-07-06 | 中车永济电机有限公司 | Main circuit of diesel-electric dual-powered traction converter |
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