CN203580676U - Motor train unit traction system with mixed power supply by power bag and energy storage device - Google Patents
Motor train unit traction system with mixed power supply by power bag and energy storage device Download PDFInfo
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- CN203580676U CN203580676U CN201320363135.5U CN201320363135U CN203580676U CN 203580676 U CN203580676 U CN 203580676U CN 201320363135 U CN201320363135 U CN 201320363135U CN 203580676 U CN203580676 U CN 203580676U
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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
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
Provided is a motor train unit traction system with mixed power supply by a power bag and an energy storage device, mainly comprising the power bag, the energy storage device, a traction current transformer, and a traction motor. The traction current transformer is connected to the traction motor. A diesel engine and an electric generator form an internal combustion power bag. The electric generator conducts three-phase output and is directly connected to the traction current transformer. The energy storage device is connected to an intermediate DC bus of the traction current transformer. The motor train unit traction system is advantageous in that cross-wire operation can be realized, and the motor train unit traction system can be adapted to different transport demands in different environment; in a non-electrification road, a mixed power supply module combining the power bag and the energy storage device is adopted, and the normal operation without an overhead line system can be achieved; when the power supply capability of the power bag is under the condition having no overhead line system, brake energy is absorbed through the energy storage device, and thereby the cyclic utilization of energy is realized and green energy-saving concept is embodied; power supply during the acceleration process of a train can be realized through the energy storage device, and thereby the best acceleration performance can be achieved; as the energy storage device is adopted, the motor train unit not only has the running capability in a non-electrification road, but also has the function of emergency rescue and combat readiness when the weather is specially rainy or snowy or when the overhead line system is damaged, and can be used as a mobile power supply.
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 power bag 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 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 the medium-term and long-term railway network planning of < < > >, 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 cannot meet on non-electrified railway and move, and when electrified section et out of order or the high-pressure system et out of order of vehicle own, cannot carry out and save oneself in time.
In addition, in current non-electrified 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.
Summary of the invention
The purpose of this utility model is to provide a kind of motor train unit traction system of hybrid power, when realizing motor train unit and have, can normally move in the situation of no touch net, realize the recycle of energy, realize best acceleration capability and the object 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 power bag and closed-center system hybrid power supply, it is characterized in that: mainly comprise power bag, closed-center system, traction convertor, traction electric machine, traction convertor is connected with traction electric machine; Diesel engine and electrical generator form combustion power bag, and the output of electrical generator three-phase is directly connected with traction convertor, and closed-center system is connected with traction convertor intermediate dc bus.
Traction convertor comprises power packet interface, closed-center system interface, the first pre-charging device, the second pre-charging device, four-quadrant rectifier, intermediate dc link, traction invertor, two-way DC/DC chopper, overvoltage suppression circuit, traction electric machine interface and AuCT interface, described power packet interface is connected with the input end of described four-quadrant 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 power packet interface and described rectifier, described the second pre-charging device is arranged on the circuit between described closed-center system interface and described rectifier, 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 rectifier, described AuCT interface is connected in parallel on the mouth DC bus of described four-quadrant rectifier.
Described intermediate dc link comprises Support Capacitor and capacitive strike resistance.
Described the first pre-charging device and 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 and the second pre-charging device to described Support Capacitor precharge respectively.
Described two-way DC/DC chopper comprises two IGBT power devices and a reactor, after described two IGBT power devices connect, is connected with reactor.
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) cross-line operation can be realized, the different transportation demands of varying environment can be adapted to.
2) in non-electrified section, adopt power bag and closed-center system hybrid power supply pattern, realize the normal operation of no touch net operating mode.
3) non-electrified section in urban district, realizes " zero " discharge.
4) in power bag power supply capacity under no touch net operating mode, braking energy absorbs by closed-center system, has realized the recycle of energy, embodies green energy conservation theory.
5) can realize the power supply in train accelerator by closed-center system, realize best acceleration capability, but greatly reduce the power of power bag and volume, weight, realize best power density.
6) owing to having adopted closed-center system, these motor train unit not only have the service requirement in non-electrified section, at special sleety weather or contact system, have emergency management and rescue and war preparedness function when impaired, can also use as portable power source.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment power circuit schematic diagram;
Fig. 2 is 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 comprises power bag, closed-center system, traction convertor, traction electric machine, and traction convertor is connected with traction electric machine; Diesel engine and electrical generator form combustion power bag, and the output of electrical generator three-phase is directly connected with traction convertor, and closed-center system is connected with traction convertor intermediate dc bus.
With reference to Fig. 2, Fig. 3,1. two-way DC/DC chopper 9. overvoltage suppression circuit 10. traction electric machine interface 11. second pre-charging devices of AuCT interface 2. power packet interface 3. closed-center system interface 4. first pre-charging device 5. four-quadrant rectifier 6. intermediate dc link 7. traction invertor 8.
Power packet interface 2 is connected with the input end of four-quadrant rectifier 5, 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 mouth of traction invertor 7, the mouth of traction invertor 7 is for being connected with the traction electric machine interface 10 of motor train unit, for traction electric machine interface 10 power supply, by traction electric machine interface 10, provide power for motor train unit.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 link 6, to guarantee the safety of IGBT power device in circuit.AuCT interface 1 is connected in parallel on the mouth DC bus of four-quadrant rectifier 5, by intermediate dc link 6, is 1 power supply of AuCT interface, and AuCT interface 1 is for the assistant load power supply to motor train unit.The first pre-charging device 4 is arranged on the circuit between power packet interface 2 and four-quadrant rectifier 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 LK2, the first precharge contactless switch K2 and the first pre-charge resistance R2.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 lower, can first closed the first precharge contactless switch K2, the anti-paralleled diode by the first pre-charge resistance R2 and four-quadrant rectifier 5 charges to Support Capacitor C1.Closed the first main contact LK2, disconnection the first precharge contactless switch K2 after the voltage at Support Capacitor C1 two ends reaches certain value.
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 is lower, first closed the second precharge contactless switch K3, charges 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.After the voltage at middle Support Capacitor C1 two ends approaches energy-storage battery voltage, closed main contact K4, disconnection precharge contactless switch K3, then start two-way DC/DC chopper 8.
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, four-quadrant rectifier 5 is for realizing AC/DC(AC/DC) conversion, under contact system powering mode, four-quadrant rectifier 5 adopts two level main circuit topologies, by phase shift pulse modulation technology, make the equivalent switching frequency of this four-quadrant rectifier 5 become the twice of single rectifier switch frequency, thereby greatly reduce the current harmonics of four-quadrant 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.
Traction invertor 7 can comprise six IGBT power device IV1-IV6, by DC/AC(AC/DC) conversion, by 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, multi-mode modulation algorithm be can adopt, to make full use 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 output haulage capacity, to compensate the underproof of power bag; When vehicle is during in braking mode, two-way DC/DC chopper 8 is carried out to step-down control, to closed-center system charging, to absorb braking energy, realize energy recycling.
Working process: under traction working condition, use four quadrant convertor to export and carry out rectification heat dynamic resource, use two-way DC/DC chopper to carry out closed-center system electric discharge, the power supply mode combining with closed-center system by heat dynamic resource, meet the demand of train operation, obtain best acceleration capability.
Under constant speed operating mode, train dynamics is provided by heat dynamic resource completely, and closed-center system is place in operation not;
Under damped condition, the whole feedback closed-center systems of braking energy, realize energy efficient utilization and energy-saving and emission-reduction.
Claims (6)
1. a motor train unit traction system for power bag and closed-center system hybrid power supply, is characterized in that: mainly comprise power bag, closed-center system, traction convertor, traction electric machine, traction convertor is connected with traction electric machine; Diesel engine and electrical generator form combustion power bag, and the output of electrical generator three-phase is directly connected with traction convertor, and closed-center system is connected with traction convertor intermediate dc bus.
2. the motor train unit traction system of a kind of power bag according to claim 1 and closed-center system hybrid power supply, it is characterized in that: traction convertor comprises power packet interface, closed-center system interface, the first pre-charging device, the second pre-charging device, four-quadrant rectifier, intermediate dc link, traction invertor, two-way DC/DC chopper, overvoltage suppression circuit, traction electric machine interface and AuCT interface, described power packet interface is connected with the input end of described four-quadrant 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 power packet interface and described rectifier, described the second pre-charging device is arranged on the circuit between described closed-center system interface and described rectifier, 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 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 power bag according to claim 2 and closed-center system hybrid power supply, is characterized in that: described intermediate dc link comprises Support Capacitor and capacitive strike resistance.
4. the motor train unit traction system of a kind of power bag according to claim 2 and closed-center system hybrid power supply, is characterized in that: described the first pre-charging device and 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 and the second pre-charging device to described Support Capacitor precharge respectively.
5. the motor train unit traction system of a kind of power bag 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, be connected with reactor.
6. the motor train unit traction system of a kind of power bag according to claim 2 and closed-center system hybrid power supply, 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 |
|---|---|---|---|
| CN201320363135.5U CN203580676U (en) | 2013-06-24 | 2013-06-24 | Motor train unit traction system with mixed power supply by power bag and energy storage device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320363135.5U CN203580676U (en) | 2013-06-24 | 2013-06-24 | Motor train unit traction system with mixed power supply by power bag and energy storage device |
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| CN203580676U true CN203580676U (en) | 2014-05-07 |
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| CN201320363135.5U Withdrawn - After Issue CN203580676U (en) | 2013-06-24 | 2013-06-24 | Motor train unit traction system with mixed power supply by power bag and energy storage device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496327A (en) * | 2013-06-24 | 2014-01-08 | 长春轨道客车股份有限公司 | Motor train unit traction system powered by power packs and energy storage devices in mixed mode |
| 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 |
| WO2018040367A1 (en) * | 2016-08-30 | 2018-03-08 | 中车株洲电力机车有限公司 | Diesel multiple unit, and electricity supply system and traction control method therefor |
-
2013
- 2013-06-24 CN CN201320363135.5U patent/CN203580676U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496327A (en) * | 2013-06-24 | 2014-01-08 | 长春轨道客车股份有限公司 | Motor train unit traction system powered by power packs and energy storage devices in mixed mode |
| CN103496327B (en) * | 2013-06-24 | 2015-09-30 | 长春轨道客车股份有限公司 | The motor train unit traction system of a kind of power bag and closed-center system hybrid power supply |
| 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 |
| WO2018040367A1 (en) * | 2016-08-30 | 2018-03-08 | 中车株洲电力机车有限公司 | Diesel multiple unit, and electricity supply system and traction control method therefor |
| US20190193757A1 (en) * | 2016-08-30 | 2019-06-27 | Crrc Zhuzhou Locomotive Co., Ltd | Diesel multiple unit, and electricity supply system and traction control method therefor |
| US11034367B2 (en) * | 2016-08-30 | 2021-06-15 | Crrc Zhuzhou Locomotive Co., Ltd | Diesel multiple unit, and electricity supply system and traction control method therefor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140507 Effective date of abandoning: 20150930 |
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| RGAV | Abandon patent right to avoid regrant |