CN203372079U - Motor train unit traction system powered by contact net and energy storing device in hybrid mode - Google Patents
Motor train unit traction system powered by contact net and energy storing device in hybrid mode Download PDFInfo
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- CN203372079U CN203372079U CN201320361874.0U CN201320361874U CN203372079U CN 203372079 U CN203372079 U CN 203372079U CN 201320361874 U CN201320361874 U CN 201320361874U CN 203372079 U CN203372079 U CN 203372079U
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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
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- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model discloses a motor train unit traction system powered by a contact net and an energy storing device in a hybrid mode. The motor train unit traction system is characterized by mainly comprising a traction transformer, the energy storing device, a traction current transformer and a traction motor. The contact net is connected with the primary side of the traction transformer through a pantograph type current collector, two auxiliary side windings of the traction transformer are directly connected with the traction current transformer, the traction current transformer is connected with the traction motor, and the energy storing device is connected with a direct-current bus in the middle of the traction current transformer. The motor train unit traction system can be operated on an electrical circuit and a non-electrical circuit at the same time, under the working condition without the contact net, braking energy is absorbed through the energy storing device, and recycling of the energy is achieved. The green and energy-saving idea is reflected. In the special rain and snow weather, or when the contact net is damaged, the motor train unit traction system has the emergency rescue and combat readiness functions, and the energy storing device can also be used as a portable power source.
Description
Technical field
The utility model relates to motor train unit traction system, relates in particular to the motor train unit traction generator of a kind of contact system and closed-center system hybrid power supply.
Background technology
Traction system is the core of motor train unit driving system, is bearing the task that driving dynamics is provided for train.Traditional motor train unit traction system is mainly single electric traction, adopts the contact system powering mode, can only operate in electrified railway.And, according to China railways planning, by the end of the year 2012, China's electrified railway accounts for 53% of china railway circuit; According to Mid-term and Long-term Plan of the Railway Network, estimate the year two thousand twenty, electrified railway will account for 60% of china railway circuit, and non-electrified railway will occupy significant proportion for a long time.The motor train unit of all single electric tractions can't meet on non-electrified railway and move, and, when electrified highway section et out of order or the high-pressure system et out of order of vehicle own, can't carry out and save oneself in time.
In addition, in current non-electrified highway section, it is the mode of diesel locomotive centrally connected power supply traction that the train of traditional centrally connected power supply adopts heat dynamic resource, and in braking procedure, braking energy mainly consumes by the mode of braking resistor, causes the huge waste of the energy.
The utility model content
The purpose of this utility model is to provide a kind of motor train unit traction system of hybrid power, realize that motor train unit have, when can normally move in the situation of no touch net, realize the recycle of energy, realize best acceleration capability and the purposes such as emergency management and rescue, war preparedness of hybrid power simultaneously.
For achieving the above object, the utility model provides the motor train unit traction system of a kind of contact system and closed-center system hybrid power supply, it is characterized in that: mainly comprise traction transformer, closed-center system, traction convertor, traction electric machine, contact system is connected by the former limit of pantograph and traction transformer, two secondary windings of traction transformer directly are connected with traction convertor, traction convertor is connected with traction electric machine, and closed-center system is connected with traction convertor intermediate dc bus.
Traction convertor comprises the traction transformer interface, the closed-center system interface, the first pre-charging device, the second pre-charging device, four-quadrant rectifier, the intermediate dc link, traction invertor, two-way DC/DC chopper, overvoltage suppression circuit, traction electric machine interface and AuCT interface, described traction transformer interface is connected with the input end of described rectifier, described closed-center system interface is connected with described two-way DC/DC chopper, and be connected in parallel on the mouth DC bus of described four-quadrant rectifier, described the first pre-charging device is arranged on the circuit between described traction transformer interface and described four-quadrant rectifier, described the second pre-charging device is arranged on the circuit between described closed-center system interface and described two-way DC/DC chopper, the mouth of described four-quadrant rectifier is connected with the mouth of described traction invertor, described intermediate dc link is connected in parallel on the mouth DC bus of described four-quadrant rectifier, the mouth of described traction invertor is for being connected with described traction electric machine interface, described overvoltage suppression circuit is connected in parallel on the mouth DC bus of described four-quadrant rectifier, described AuCT interface is connected in parallel on the mouth DC bus of described four-quadrant rectifier.
Described the first pre-charging device, the second pre-charging device include main contactor, precharge contactless switch and pre-charge resistance; Described main contactor is for controlling the break-make of power circuit, and described precharge contactless switch is for controlling described the first pre-charging device, the second pre-charging device to described Support Capacitor precharge respectively.
Described intermediate dc link comprises Support Capacitor and capacitive strike resistance.
Described two-way DC/DC chopper comprises two IGBT power devices and a reactor, after described two IGBT power devices connect, with reactor, is connected.
Described overvoltage suppression circuit comprises IGBT power device and the energy absorbing resistance of series connection.
The beneficial effect that the utility model compared with prior art had:
1) the cross-line operation can be realized, the different transportation demands of varying environment can be adapted to.
2) in non-electrified highway section, adopt the closed-center system powering mode, realize the normal operation of no touch net operating mode.
3), in non-electrified highway section, realize " zero " discharge.
4) under no touch net operating mode, braking energy is absorbed by closed-center system, has realized the recycle of energy, embodies the green energy conservation theory.
5) owing to having adopted closed-center system, these motor train unit not only have the service requirement in non-electrified highway section, at special sleety weather or contact system, emergency management and rescue and war preparedness function are arranged when impaired, can also use as portable power source.
The accompanying drawing explanation
The power circuit schematic diagram that Fig. 1 is the utility model embodiment;
Fig. 2 is the traction convertor composition frame chart;
Fig. 3 is traction convertor power circuit schematic diagram.
The specific embodiment
With reference to Fig. 1, the utility model embodiment mainly comprises traction transformer, closed-center system, traction convertor and traction electric machine, contact system is connected by the former limit of pantograph and traction transformer, and two secondary windings of voltage transformer directly are connected with traction convertor, and traction convertor drives traction electric machine.The effect of traction transformer is that the single-phase net pressure drop of ac contactor net is pressed, and as the input voltage of traction convertor, traction convertor drives traction electric machine to realize the motor train unit traction again, and closed-center system is connected with traction convertor intermediate dc bus.
With reference to Fig. 2, Fig. 3,1-traction transformer interface; 2-AuCT interface; 3-closed-center system interface; 4-the first pre-charging device; The 5-four-quadrant rectifier; 6-intermediate dc link; The 7-traction invertor; The two-way DC/DC chopper of 8-; The 9-overvoltage suppression circuit; 10-traction electric machine interface; 11-the second pre-charging device
Traction transformer interface 1 is connected with the input end of four-quadrant rectifier 5, and traction transformer interface 1 is pressed for the single-phase net pressure drop to contact system.Closed-center system interface 3 is connected with two-way DC/DC chopper 8, and be connected in parallel on the mouth DC bus of four-quadrant rectifier 5, intermediate dc link 6 is connected in parallel on the mouth DC bus of four-quadrant rectifier 5, the mouth of four-quadrant rectifier 5 is connected with the input end of traction invertor 7, the mouth of traction invertor 7 is for being connected with traction electric machine interface 10, for 10 power supplies of traction electric machine interface, by traction electric machine interface 10, for motor train unit, provide power.Intermediate dc link 6 can comprise Support Capacitor C1 and capacitive strike resistance R c1, and Support Capacitor C1 has filter action to the mouth of four-quadrant rectifier 5, can stablize the vdc of four-quadrant rectifier 5 mouths.Closed-center system interface 3 can be connected with storage battery or super capacitor, also can be connected with other energy-storage travelling wave tubes such as flywheel or fuel cells.Overvoltage suppression circuit 9 is connected in parallel on the mouth DC bus of four-quadrant rectifier 5, overvoltage suppression circuit 9 comprises IGBT power device IV7 and the energy absorbing resistance R ov of series connection, overvoltage suppression circuit 9 is for absorbing the momentary voltage spike of intermediate dc Support Capacitor 6, to guarantee the safety of IGBT power device in circuit.AuCT interface 2 is connected in parallel on the mouth DC bus of four-quadrant rectifier 5, by intermediate dc Support Capacitor 6, is 2 power supplies of AuCT interface, and AuCT interface 2 is powered for the assistant load to motor train unit.The first pre-charging device 4 is arranged on the circuit between traction transformer interface 1 and four quadrant convertor 5, and the second pre-charging device 11 is arranged on the circuit between closed-center system interface 3 and two-way DC/DC chopper 8; Wherein, the first pre-charging device 4 is identical with the second pre-charging device 11, and the first pre-charging device 4 comprises the first main contactor LK1, the first precharge contactless switch K1 and the first pre-charge resistance R1.The second pre-charging device 11 comprises the second main contactor K4, the second precharge contactless switch K3 and the second pre-charge resistance R3.
When the middle dc voltage of middle DC link 6 is low, can first closed the first precharge contactless switch K1, with the anti-paralleled diode of mistake the first pre-charge resistance R1 and four-quadrant 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 contactless switch K1, startup four-quadrant rectifier 5.
The second main contactor K4 is for controlling the break-make of power circuit, and the second precharge contactless switch K3 controls respectively the second pre-charge resistance R3 to Support Capacitor C1 precharge.When the middle dc voltage of middle DC link 6 hangs down, first closed the second precharge contactless switch K3, charge to middle Support Capacitor C1 with the anti-paralleled diode of crossing the second pre-charge resistance R3, reactor L1 and IGNT power device BV1.Closed main contact K4, disconnection precharge contactless switch K3, then two-way startup DC/DC chopper 8 after the voltage at middle Support Capacitor C1 two ends approaches energy-storage battery voltage.
In the present embodiment, four-quadrant 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 the AC/DC(AC/DC) conversion, under the contact system powering mode, this four-quadrant rectifier 5 adopts two level main circuit topologies, by the phase shift pulse modulation technology, make the equivalent switching frequency of this four-quadrant rectifier 5 become the twice of single four quadrant convertor switching frequency, thereby greatly reduce the current harmonics of four-quadrant rectifier 5, under power bag powering mode, can only utilize the three-phase brachium pontis to carry out that diode is not controlled or the four-quadrant rectification, press so that galvanic current to be provided.
Traction invertor 7 can comprise six IGBT power device IV1-IV6, by the DC/AC(AC/DC) conversion, by the middle dc voltage inversion, be voltage and the adjustable three plase alternating current of frequency, for driving traction electric machine interface 10 in parallel, for motor train unit provide power.Traction invertor 7 can adopt High Performance motor control algorithm, on the basis of accurate flux observation, can carry out accurate torque control to traction electric machine interface 10, to guarantee the steadily reliable of acceleration and deceleration performance that motor train unit are good and operation; In addition, the multi-mode modulation algorithm be can adopt, to take full advantage of vdc, and power device loss, noise decrease reduced.
Two-way 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 closed-center system is discharged and recharged to control, be specially: under power bag powering mode, vehicle is when traction state, if power bag underproof, closed-center system interface 3 carries out boosting rectifier control by two-way DC/DC chopper 8, with the output haulage capacity, with the underproof of compensation power bag; During in braking mode, two-way DC/DC chopper 8 is carried out to step-down control when vehicle, to the closed-center system charging, to absorb braking energy, realize energy recycling.
Working process: having under the electric power source operating mode, when train traction, use four quadrant convertor to be powered, assurance train traction, ancillary system are normally moved, and under the prerequisite that meets the train traction demand, will carry out energy storage to closed-center system; When train braking, preferentially closed-center system is carried out to energy storage, when the closed-center system energy reaches critical when saturated, use four quadrant convertor by the braking energy feedback electrical network.
Under the operating mode of unregulated power source, when train traction, use two-way DC/DC chopper to carry out the closed-center system electric discharge, meet the train operation demand, obtain best acceleration capability; When train braking, the whole feedback closed-center systems of braking energy, realize energy efficient utilization and energy-saving and emission-reduction.
Claims (6)
1. the motor train unit traction system of a contact system and closed-center system hybrid power supply, it is characterized in that: mainly comprise traction transformer, closed-center system, traction convertor, traction electric machine, contact system is connected by the former limit of pantograph and traction transformer, two secondary windings of traction transformer directly are connected with traction convertor, traction convertor is connected with traction electric machine, and closed-center system is connected with traction convertor intermediate dc bus.
2. the motor train unit traction system of a kind of contact system according to claim 1 and closed-center system hybrid power supply, it is characterized in that: traction convertor comprises the traction transformer interface, the closed-center system interface, the first pre-charging device, the second pre-charging device, four-quadrant rectifier, the intermediate dc link, traction invertor, two-way DC/DC chopper, overvoltage suppression circuit, traction electric machine interface and AuCT interface, described traction transformer interface is connected with the input end of described rectifier, described closed-center system interface is connected with described two-way DC/DC chopper, and be connected in parallel on the mouth DC bus of described four-quadrant rectifier, described the first pre-charging device is arranged on the circuit between described traction transformer interface and described four-quadrant rectifier, described the second pre-charging device is arranged on the circuit between described closed-center system interface and described two-way DC/DC chopper, the mouth of described four-quadrant rectifier is connected with the mouth of described traction invertor, described intermediate dc link is connected in parallel on the mouth DC bus of described four-quadrant rectifier, the mouth of described traction invertor is for being connected with described traction electric machine interface, described overvoltage suppression circuit is connected in parallel on the mouth DC bus of described four-quadrant rectifier, described AuCT interface is connected in parallel on the mouth DC bus of described four-quadrant rectifier.
3. the motor train unit traction system of a kind of contact system according to claim 2 and closed-center system hybrid power supply, it is characterized in that: described the first pre-charging device, the second pre-charging device include main contactor, precharge contactless switch and pre-charge resistance; Described main contactor is for controlling the break-make of power circuit, and described precharge contactless switch is for controlling described the first pre-charging device, the second pre-charging device to described Support Capacitor precharge respectively.
4. the motor train unit traction system of a kind of contact system according to claim 2 and closed-center system hybrid power supply, it is characterized in that: described intermediate dc link comprises Support Capacitor and capacitive strike resistance.
5. the motor train unit traction system of a kind of contact system according to claim 2 and closed-center system hybrid power supply, it is characterized in that: described two-way DC/DC chopper comprises two IGBT power devices and a reactor, after described two IGBT power devices connect, with reactor, is connected.
6. the motor train unit traction system of a kind of contact system according to claim 2 and closed-center system hybrid power supply, it is characterized in that: described overvoltage suppression circuit comprises IGBT power device and the energy absorbing resistance of series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320361874.0U CN203372079U (en) | 2013-06-24 | 2013-06-24 | Motor train unit traction system powered by contact net and energy storing device in hybrid mode |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320361874.0U CN203372079U (en) | 2013-06-24 | 2013-06-24 | Motor train unit traction system powered by contact net and energy storing device in hybrid mode |
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| CN203372079U true CN203372079U (en) | 2014-01-01 |
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| CN201320361874.0U Withdrawn - After Issue CN203372079U (en) | 2013-06-24 | 2013-06-24 | Motor train unit traction system powered by contact net and energy storing device in hybrid mode |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014206185A1 (en) * | 2013-06-24 | 2014-12-31 | 长春轨道客车股份有限公司 | Hybrid -power multiple unit traction system using contact wire and energy saving apparatus |
| WO2017185715A1 (en) * | 2016-04-28 | 2017-11-02 | 中车大连电力牵引研发中心有限公司 | Urban rail transit traction system |
| CN107888058A (en) * | 2017-12-01 | 2018-04-06 | 中车大连机车车辆有限公司 | Have the train power supply device of DC600V and 3AC380V power supply capacities concurrently |
| WO2019128739A1 (en) * | 2017-12-27 | 2019-07-04 | 比亚迪股份有限公司 | Rail transit direct current traction power supply system and control method therefor |
| CN114435149A (en) * | 2022-03-07 | 2022-05-06 | 中车青岛四方机车车辆股份有限公司 | Power supply control system and method for railway vehicle and railway vehicle |
| CN114454731A (en) * | 2022-01-17 | 2022-05-10 | 中车青岛四方机车车辆股份有限公司 | Power supply system of railway vehicle, power switching method and railway vehicle |
-
2013
- 2013-06-24 CN CN201320361874.0U patent/CN203372079U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014206185A1 (en) * | 2013-06-24 | 2014-12-31 | 长春轨道客车股份有限公司 | Hybrid -power multiple unit traction system using contact wire and energy saving apparatus |
| WO2017185715A1 (en) * | 2016-04-28 | 2017-11-02 | 中车大连电力牵引研发中心有限公司 | Urban rail transit traction system |
| CN107888058A (en) * | 2017-12-01 | 2018-04-06 | 中车大连机车车辆有限公司 | Have the train power supply device of DC600V and 3AC380V power supply capacities concurrently |
| WO2019128739A1 (en) * | 2017-12-27 | 2019-07-04 | 比亚迪股份有限公司 | Rail transit direct current traction power supply system and control method therefor |
| CN114454731A (en) * | 2022-01-17 | 2022-05-10 | 中车青岛四方机车车辆股份有限公司 | Power supply system of railway vehicle, power switching method and railway vehicle |
| CN114454731B (en) * | 2022-01-17 | 2024-02-23 | 中车青岛四方机车车辆股份有限公司 | Power supply system of railway vehicle, power switching method and railway vehicle |
| CN114435149A (en) * | 2022-03-07 | 2022-05-06 | 中车青岛四方机车车辆股份有限公司 | Power supply control system and method for railway vehicle and railway vehicle |
| CN114435149B (en) * | 2022-03-07 | 2024-01-16 | 中车青岛四方机车车辆股份有限公司 | Rail vehicle power supply control system and method and rail vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140101 Effective date of abandoning: 20160608 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |