CN103496327B - The motor train unit traction system of a kind of power bag and closed-center system hybrid power supply - Google Patents

The motor train unit traction system of a kind of power bag and closed-center system hybrid power supply Download PDF

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Publication number
CN103496327B
CN103496327B CN201310251826.0A CN201310251826A CN103496327B CN 103496327 B CN103496327 B CN 103496327B CN 201310251826 A CN201310251826 A CN 201310251826A CN 103496327 B CN103496327 B CN 103496327B
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closed
traction
center system
power
power supply
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CN103496327A (en
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李军
王成涛
李雪飞
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CRRC Changchun Railway Vehicles Co Ltd
China State Railway Group Co Ltd
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Changchun Railway Vehicles Co Ltd
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Priority to PCT/CN2014/071304 priority patent/WO2014206080A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/2045—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for optimising the use of energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/007—Physical arrangements or structures of drive train converters specially adapted for the propulsion motors of electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B60L50/13—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines using AC generators and AC motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L7/00—Electrodynamic brake systems for vehicles in general
    • B60L7/10—Dynamic electric regenerative braking
    • B60L7/14—Dynamic electric regenerative braking for vehicles propelled by ac motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L9/00—Electric propulsion with power supply external to the vehicle
    • B60L9/16—Electric propulsion with power supply external to the vehicle using ac induction motors
    • B60L9/24—Electric propulsion with power supply external to the vehicle using ac induction motors fed from ac supply lines
    • B60L9/28—Electric propulsion with power supply external to the vehicle using ac induction motors fed from ac supply lines polyphase motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/10—DC to DC converters
    • B60L2210/12—Buck converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/10—DC to DC converters
    • B60L2210/14—Boost converters
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

A motor train unit traction system for power bag and closed-center system hybrid power supply, 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 electrical generator three-phase exports and is directly connected with traction convertor, and closed-center system is connected with traction convertor intermediate dc bus.The present invention can realize movement across lines, can adapt to the different transportation demands of varying environment; In non-electrical gasification section, adopt power bag and closed-center system hybrid power supply pattern, realize the normal operation of no touch net operating mode; In power bag power supply capacity under no touch net operating mode, braking energy is absorbed by closed-center system, achieves the recycle of energy, embodies green energy conservation theory; The power supply in train accelerator can be realized by closed-center system, realize best acceleration capability, owing to have employed closed-center system, these motor train unit not only have the service requirement in non-electrical gasification section, special sleety weather or contact system impaired time have emergency management and rescue and war preparedness function, can also use as portable power source.

Description

The motor train unit traction system of a kind of power bag and closed-center system hybrid power supply
Technical field
The present invention relates to motor train unit traction system, particularly relate 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 transmission system system, bears as train provides the task of driving dynamics.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 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 cannot meet and run on non-electrified railway, and when electrified section et out of order or the high-pressure system et out of order of vehicle own, cannot carry out in time and save oneself.
In addition, in current non-electrical gasification section, the train of traditional centrally connected power supply adopts the mode of heat dynamic resource and the traction of diesel locomotive centrally connected power supply, and in braking procedure, braking energy consumes mainly through the mode of braking resistor, causes the huge waste of the energy.
Summary of the invention
The object of this invention is to provide a kind of motor train unit traction system of hybrid power, realize motor train unit and have, no touch net when can normally run while, 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 invention 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 electrical generator three-phase exports and 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, first pre-charging device, 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 first pre-charging device is arranged on the circuit between described power packet interface and described rectifier, described 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 used 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 first pre-charging device and the second pre-charging device include main contactor, pre-charge contactor and pre-charge resistance; Described main contactor is for controlling the break-make of power circuit, and described pre-charge contactor is used for controlling described first pre-charging device and the second pre-charging device respectively to described Support Capacitor precharge.
Described DC link comprises Support Capacitor and capacitive strike resistance.
Described two-way DC/DC chopper comprises two IGBT power devices and a reactor, is connected after described two IGBT power devices connect with reactor.
Described overvoltage suppression circuit comprises IGBT power device and the energy absorbing resistance of series connection.
The beneficial effect that the present invention is compared with prior art had:
1) can movement across lines be realized, the different transportation demands of varying environment can be adapted to.
2) in non-electrical gasification section, adopt power bag and closed-center system hybrid power supply pattern, realize the normal operation of no touch net operating mode.
3) non-electrical gasification section in urban district, realizes " zero " discharge.
4) in power bag power supply capacity under no touch net operating mode, braking energy is absorbed by closed-center system, achieves the recycle of energy, embodies green energy conservation theory.
5) the power supply in train accelerator can be realized by closed-center system, realize best acceleration capability, but substantially reduce power and volume, the weight of power bag, realize best power density.
6) owing to have employed closed-center system, these motor train unit not only have non-electrical gasification section service requirement, special sleety weather or contact system impaired time have emergency management and rescue and war preparedness function, can also use as portable power source.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention power circuit schematic diagram;
Fig. 2 is traction convertor composition frame chart;
Fig. 3 is traction convertor power circuit schematic diagram.
Detailed description of the invention
With reference to Fig. 1, embodiment of the present invention 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 electrical generator three-phase exports and 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 device 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 used for being connected with the traction electric machine interface 10 of motor train unit, for traction electric machine interface 10 is powered, 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 Rc1, the Support Capacitor C1 mouth to four-quadrant rectifier 5 has filter action, can stablize the vdc of four-quadrant rectifier 5 mouth.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 cell.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 Rov of series connection, overvoltage suppression circuit 9 for absorbing the transient voltage spikes in intermediate DC link 6, to ensure 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, is powered for AuCT interface 1 by intermediate DC link 6, and AuCT interface 1 is powered for the assistant load to motor train unit.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 pre-charge contactor K2 and the first pre-charge resistance R2.Second pre-charging device 11 comprises the second main contactor K4, the second pre-charge contactor K3 and the second pre-charge resistance R3.
When the middle dc voltage of intermediate DC link 6 is lower, can first close the first pre-charge contactor K2, by the anti-paralleled diode of the first pre-charge resistance R2 and four-quadrant rectifier 5, Support Capacitor C1 be charged.After the voltage at Support Capacitor C1 two ends reaches certain value, close the first main contact LK2, disconnect the first pre-charge contactor K2.
Second main contactor K4 is for controlling the break-make of power circuit, and the second pre-charge contactor K3 controls the second pre-charge resistance R3 respectively to Support Capacitor C1 precharge.When the middle dc voltage of intermediate DC link 6 is lower, first closed second pre-charge contactor K3, charges to middle Support Capacitor C1 with the anti-paralleled diode crossing the second pre-charge resistance R3, reactor L1 and IGNT power device BV1.After the voltage at middle Support Capacitor C1 two ends is close to energy-storage battery voltage, closed main contact K4, disconnection pre-charge contactor 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, the equivalent switching frequency of this four-quadrant rectifier 5 is made to become the twice of single rectifier switch frequency by phase-shifted pulse width modulation technology, thus greatly reduce the current harmonics of four-quadrant rectifier 5, under power bag powering mode, three-phase brachium pontis only can be utilized to carry out diode and not control or four-quadrant rectification, to provide galvanic current pressure.
Traction invertor 7 can comprise six IGBT power device IV1-IV6, by DC/AC(AC/DC) conversion, be the three plase alternating current of voltage and frequency-adjustable joint by middle dc voltage inversion, 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 direct torque to traction electric machine interface 10, to ensure the steadily reliable of the acceleration and deceleration performance that motor train unit are good and operation; In addition, multi-mode modulation algorithm can be adopted, to make full use of vdc, and reduce power device loss, noise decrease.
Two-way DC/DC chopper 8 comprises two IGBT power device BV1, BV2 and reactor L1.Be connected with reactor L1 after two IGBT power devices BV1, BV2 connect.Realize carrying out charge and discharge control to closed-center system by different on-off modes, be specially: under power bag powering mode, when vehicle is in traction state, if power bag underproof, closed-center system interface 3 carries out boosting rectifier control by two-way DC/DC chopper 8, to export haulage capacity, to compensate the underproof of power bag; When vehicle is in braking mode, step-down control is carried out to two-way DC/DC chopper 8, to closed-center system charging, to absorb braking energy, realize energy recycling.
Working process: under traction working condition, use four quadrant convertor to export heat dynamic resource and carry out rectification, use two-way DC/DC chopper to carry out closed-center system electric discharge, the power supply mode combined 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 system of braking energy, realizes energy efficient and utilizes 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 electrical generator three-phase exports and 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, first pre-charging device, 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 first pre-charging device is arranged on the circuit between described power packet interface and described rectifier, described 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 used 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 first pre-charging device and the second pre-charging device include main contactor, pre-charge contactor and pre-charge resistance; Described main contactor is for controlling the break-make of power circuit, and described pre-charge contactor is used for controlling described first pre-charging device and the second pre-charging device respectively to described intermediate DC link precharge.
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, be connected with reactor after described two IGBT power devices connect.
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.
CN201310251826.0A 2013-06-24 2013-06-24 The motor train unit traction system of a kind of power bag and closed-center system hybrid power supply Active CN103496327B (en)

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CN201310251826.0A CN103496327B (en) 2013-06-24 2013-06-24 The motor train unit traction system of a kind of power bag and closed-center system hybrid power supply
PCT/CN2014/071304 WO2014206080A1 (en) 2013-06-24 2014-01-24 Traction system for motor train unit hybridly powered by power pack and energy storage device

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CN106274508A (en) * 2016-08-30 2017-01-04 中车株洲电力机车有限公司 A kind of Diesel Multiple Unit and electric power system thereof and traction control method
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