CN203318183U - Contact grid and power pack hybrid power supply motor train unit traction system - Google Patents
Contact grid and power pack hybrid power supply motor train unit traction system Download PDFInfo
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- CN203318183U CN203318183U CN2013203622680U CN201320362268U CN203318183U CN 203318183 U CN203318183 U CN 203318183U CN 2013203622680 U CN2013203622680 U CN 2013203622680U CN 201320362268 U CN201320362268 U CN 201320362268U CN 203318183 U CN203318183 U CN 203318183U
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Abstract
A contact grid and power pack hybrid power supply motor train unit traction system is characterized by mainly comprising a traction transformer, the power pack, a traction converter, a traction motor and a brake resistor, wherein the contact grid is connected with a primary side of the traction transformer through a pantograph; two secondary side windings of the traction transformer are directly connected with the traction converter; the traction converter is connected with the traction motor; a diesel engine and an electric generator form the power pack; and a three-phase output of the electric generator is directly connected with the traction converter. According to the motor train unit traction system, crossline operation can be realized, and different conveying requirements of different environments can be met; in a non-electrification road segment, a power pack power supply mode is adopted, and the normal operation of the motor train unit traction system in a working condition without the contact grid is realized; two power systems are adopted, so that the motor train unit has the operation capacity on a non-electrification road segment, and also has emergency rescue and war preparation functions in special weather of rain or snow or when the contact grid is damaged.
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 the hybrid power supply of power bag.
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 and adopts the contact system powering mode, can only operate in electrified railway, or adopt single heat dynamic resource traction, operates on non-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.
The utility model content
The purpose of this utility model is to provide a kind of motor train unit traction system of hybrid power, realizes that motor train unit have, when can normally move in the situation of no touch net, realizes best acceleration capability and the purposes such as emergency management and rescue, war preparedness of hybrid power.
For achieving the above object, the utility model provides the motor train unit traction system of a kind of contact system and the hybrid power supply of power bag, it is characterized in that: mainly comprise traction transformer, power bag, traction convertor, traction electric machine, braking resistor, 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, diesel engine and electrical generator form the power bag, and the output of electrical generator three-phase directly is connected with traction convertor.
Traction convertor comprises the traction transformer interface, the power packet interface, the first pre-charging device, the second pre-charging device, four-quadrant rectifier, the intermediate dc link, traction invertor, overvoltage suppression circuit, traction electric machine interface and AuCT interface, described traction transformer interface is connected with the input end of described four-quadrant rectifier, described power packet interface is connected with the input end 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 power packet interface and described four-quadrant rectifier, the mouth of described four-quadrant rectifier is connected with the input end 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 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 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 intermediate dc link comprises Support Capacitor and capacitive strike resistance.
Described overvoltage suppression circuit comprises IGBT power device and the energy absorbing resistance of series connection.
Described traction system also comprises braking resistor.
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 power bag powering mode, realize the normal operation of no touch net operating mode.
3) the power bag adopts mounting means under car, consistent with traditional motor train unit physical construction, reduces design cost 4) the power bag adopts the height integration mode, greatly reduced the power of power bag and volume, weight, realizes best power density.
5) owing to having adopted two cover power systems, 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.
The accompanying drawing explanation
Fig. 1 is the utility model embodiment power circuit schematic diagram;
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, the power bag, 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, the effect of traction transformer is that the single-phase net pressure drop of ac contactor net is pressed, input voltage as traction convertor, traction convertor drives traction electric machine to realize the motor train unit traction again, diesel engine and electrical generator form the combustion power bag, the output of electrical generator three-phase directly is connected with traction convertor.
With reference to Fig. 2, Fig. 3,1. traction transformer interface 2. power packet interface 3. traction electric machine interface 4. first pre-charging device 5. four-quadrant rectifier 6. intermediate dc link 7. traction invertor 8. AuCT interface 9. overvoltage suppression circuit 10. second pre-charging devices
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.Power packet interface 2 is connected with the input end 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 connected with traction electric machine interface 3, for 3 power supplies of traction electric machine interface, by traction electric machine interface 3, 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.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 8 is connected in parallel on the mouth DC bus of four-quadrant rectifier 5, by intermediate dc link 6, is 8 power supplies of AuCT interface, and AuCT interface 8 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 rectifier 5, and the second pre-charging device 10 is arranged on the circuit between power packet interface 2 and four-quadrant rectifier 5; Wherein, the first pre-charging device 4 is identical with the second pre-charging device 10, 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 10 comprises the second main contactor LK2, the second precharge contactless switch K2 and the second pre-charge resistance R2.
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 rectifier 5.Now, the second precharge contactless switch K2 and the second main contactor LK2 should remain open.
When the middle dc voltage of middle DC link 6 is low, also can first closed the second precharge contactless switch 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 contactless switch K2.Now, the first precharge contactless switch K1 and the first main contactor LK1 should remain open.
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 the AC/DC(AC/DC) conversion, under the contact system powering mode, this four-quadrant rectifier 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 rectifier switch 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 3 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 3, 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.
Working process: having under the electric power source operating mode, when train traction, use four-quadrant rectifier to be powered, assurance train traction, ancillary system are normally moved; When train braking, use four-quadrant rectifier by the braking energy feedback electrical network.
Under the operating mode of unregulated power source, when train traction, use four-quadrant rectifier to export and carry out rectification heat dynamic resource, meet the demand of train operation; When train braking, braking energy is used braking resistor consumption.
Claims (6)
1. the motor train unit traction system of a contact system and the hybrid power supply of power bag, it is characterized in that: mainly comprise traction transformer, power bag, traction convertor, traction electric machine, braking resistor, 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, diesel engine and electrical generator form the power bag, and the output of electrical generator three-phase directly is connected with traction convertor.
2. the motor train unit traction system of a kind of contact system according to claim 1 and the hybrid power supply of power bag, it is characterized in that: traction convertor comprises the traction transformer interface, the power packet interface, the first pre-charging device, the second pre-charging device, four-quadrant rectifier, the intermediate dc link, traction invertor, overvoltage suppression circuit, traction electric machine interface and AuCT interface, described traction transformer interface is connected with the input end of described four-quadrant rectifier, described power packet interface is connected with the input end 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 power packet interface and described four-quadrant rectifier, the mouth of described four-quadrant rectifier is connected with the input end 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 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 the hybrid power supply of power bag, it 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.
4. the motor train unit traction system of a kind of contact system according to claim 2 and the hybrid power supply of power bag, 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 the hybrid power supply of power bag, it is characterized in that: described overvoltage suppression circuit comprises IGBT power device and the energy absorbing resistance of series connection.
6. the motor train unit traction system of a kind of contact system according to claim 1 and the hybrid power supply of power bag, is characterized in that: also comprise braking resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203622680U CN203318183U (en) | 2013-06-24 | 2013-06-24 | Contact grid and power pack hybrid power supply motor train unit traction system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203622680U CN203318183U (en) | 2013-06-24 | 2013-06-24 | Contact grid and power pack hybrid power supply motor train unit traction system |
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| CN203318183U true CN203318183U (en) | 2013-12-04 |
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| CN2013203622680U Withdrawn - After Issue CN203318183U (en) | 2013-06-24 | 2013-06-24 | Contact grid and power pack hybrid power supply motor train unit traction system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407377A (en) * | 2013-06-24 | 2013-11-27 | 长春轨道客车股份有限公司 | Motor train unit traction system powered up by overhead contact system and power pack in combined mode |
| CN104290762A (en) * | 2014-10-17 | 2015-01-21 | 南车四方车辆有限公司 | Hybrid power type power distributed motor train unit |
| CN104709101B (en) * | 2013-12-17 | 2017-01-18 | 中车大连电力牵引研发中心有限公司 | drive device and vehicle |
| CN107554312A (en) * | 2017-09-18 | 2018-01-09 | 中车唐山机车车辆有限公司 | Trailer system Poewr control method, device, system and rail vehicle |
-
2013
- 2013-06-24 CN CN2013203622680U patent/CN203318183U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407377A (en) * | 2013-06-24 | 2013-11-27 | 长春轨道客车股份有限公司 | Motor train unit traction system powered up by overhead contact system and power pack in combined mode |
| WO2014206184A1 (en) * | 2013-06-24 | 2014-12-31 | 长春轨道客车股份有限公司 | Traction system for motor train unit hybridly powered by overhead contact system and power pack |
| CN103407377B (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 contact system and the hybrid power supply of power bag |
| CN104709101B (en) * | 2013-12-17 | 2017-01-18 | 中车大连电力牵引研发中心有限公司 | drive device and vehicle |
| CN104290762A (en) * | 2014-10-17 | 2015-01-21 | 南车四方车辆有限公司 | Hybrid power type power distributed motor train unit |
| CN104290762B (en) * | 2014-10-17 | 2017-03-08 | 中车四方车辆有限公司 | Hybrid power type power decentralized type EMUs |
| CN107554312A (en) * | 2017-09-18 | 2018-01-09 | 中车唐山机车车辆有限公司 | Trailer system Poewr control method, device, system 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: 20131204 Effective date of abandoning: 20150930 |
|
| RGAV | Abandon patent right to avoid regrant |