CN103481787A - Contact system, power pack and energy storage device hybrid-powered CRH train traction system - Google Patents

Contact system, power pack and energy storage device hybrid-powered CRH train traction system Download PDF

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Publication number
CN103481787A
CN103481787A CN201310251203.3A CN201310251203A CN103481787A CN 103481787 A CN103481787 A CN 103481787A CN 201310251203 A CN201310251203 A CN 201310251203A CN 103481787 A CN103481787 A CN 103481787A
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China
Prior art keywords
traction
charging device
interface
closed
power
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CN201310251203.3A
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CN103481787B (en
Inventor
赵明花
李军
王成涛
荀玉涛
李雪飞
王树宾
韩伟
况阳
哈大雷
解枫
周勇志
马昭钰
翟黎渊
刘俊明
万争
田伟
翟丽佳
王颖超
蒋英智
张金龙
金鑫
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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 CN201310251203.3A priority Critical patent/CN103481787B/en
Publication of CN103481787A publication Critical patent/CN103481787A/en
Priority to PCT/CN2014/071301 priority patent/WO2014206079A1/en
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Publication of CN103481787B publication Critical patent/CN103481787B/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
    • 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
    • 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
    • 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
    • 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
    • B60L50/15—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with additional electric power supply
    • 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
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • B60L53/24—Using the vehicle's propulsion converter for charging
    • 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
    • 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
    • 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
    • B60L2210/20—AC to AC 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
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/40—Electrical machine applications
    • B60L2220/42—Electrical machine applications with use of more than one motor
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/52—Drive Train control parameters related to 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/52—Drive Train control parameters related to converters
    • B60L2240/527—Voltage
    • 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
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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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

The invention relates to a contact system, power pack and energy storage device hybrid-powered CRH train traction system, which is characterized by mainly comprising a traction transformer, a power pack, an energy storage device, a traction converter and a traction motor, and a contact system is connected with the primary side of the traction transformer through a pantograph, and the two secondary windings of the traction transformer are directly connected with the traction converter; the traction converter is connected with the traction motor, and a diesel engine and a generator form the internal combustion power pack; and the three-phase output of the generator is directly connected with the traction inverter, and the energy storage device is connected with the intermediate DC bus of the traction converter. The traction system can run simultaneously on electrified and non-electrified lines, and can rescue self through power supplied by the power pack and the energy storage device.

Description

The motor train unit traction system of contact system, power bag and closed-center system hybrid power supply
Technical field
The present invention relates to motor train unit traction system, relate in particular to the motor train unit traction generator of a kind of contact system, 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 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.Tradition motor train unit traction generator is mainly single contact system powering mode, can't adapt to non-electrified railway.And, when the fault of electrified highway section, can't carry out and save oneself in time.In addition, in non-electrified highway section, the braking energy of conventional train mainly consumes by the mode of braking resistor, causes the huge waste of the energy.
Summary of the invention
The motor train unit traction system that the purpose of this invention is to provide a kind 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 invention provides the motor train unit traction system of a kind of contact system, power bag and closed-center system hybrid power supply, it is characterized in that: mainly comprise traction transformer, power bag, 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, and traction convertor is connected with traction electric machine; Diesel engine and electrical generator form the combustion power bag, and the output of electrical generator three-phase directly is connected with traction convertor, and closed-center system is connected with traction convertor intermediate dc bus.
Traction convertor comprises the traction transformer interface, the power packet interface, the closed-center system interface, the first pre-charging device, the second pre-charging device, the 3rd 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 four-quadrant rectifier, 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 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, described the 3rd 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 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 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 and the 3rd 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 and the 3rd 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.
The beneficial effect that the present invention 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 and closed-center system hybrid power supply pattern, realize the normal operation of no touch net operating mode.
3) non-electrified highway section in urban district, realize " zero " discharge.
4) in power bag power supply capacity 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) can realize the power supply in the 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 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
Fig. 1 is embodiment of the present invention 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, embodiment of the present invention mainly comprises traction transformer, the power bag, 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, 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, closed-center system is connected with traction convertor intermediate dc bus.
With reference to Fig. 2, Fig. 3,1-traction transformer interface; 2-power packet 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-AuCT interface; 12-the second pre-charging device; 13-the 3rd 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.Power packet interface 2 is connected with the input end of four-quadrant rectifier 5, closed-center system interface 3 is connected with 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 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 DC link 6, to guarantee the safety of IGBT power device in circuit.AuCT interface 11 is connected in parallel on the mouth DC bus of four-quadrant rectifier 5, by intermediate dc link 6, is 11 power supplies of AuCT interface, and AuCT interface 11 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, the second pre-charging device 12 is arranged on the circuit between power packet interface 2 and four-quadrant rectifier 5, and the 3rd pre-charging device 13 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 and the second pre-charging device 12 and the 3rd pre-charging device 13 are identical, 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 12 comprises the second main contactor LK2, the second precharge contactless switch K2 and the second pre-charge resistance R2.The 3rd pre-charging device 13 comprises the 3rd main contactor K4, the 3rd precharge contactless switch K3 and the 3rd 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 crossing the first pre-charge resistance R1 and change 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.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 four-quadrant 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.
The 3rd main contactor K4 is for controlling the break-make of power circuit, and the 3rd precharge contactless switch K3 controls respectively the 3rd pre-charge resistance R3 to Support Capacitor C1 precharge.When the middle dc voltage of middle DC link 6 hangs down, first closed the 3rd precharge contactless switch K3, charge to middle Support Capacitor C1 with the anti-paralleled diode of crossing the 3rd pre-charge resistance R3, reactor L1 and IGNT power device BV1.After the voltage at 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 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 rectifier switching frequency, thereby greatly reduce the current harmonics of four-quadrant rectifier 5.
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 four quadrant convertor to export and carry out rectification heat dynamic resource, use two-way DC/DC chopper to carry out the 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; When the train constant-speed operation, train dynamics is provided by heat dynamic resource fully, and closed-center system is place in operation not; When train braking, the whole feedback closed-center systems of braking energy, realize energy efficient utilization and energy-saving and emission-reduction.

Claims (5)

1. the motor train unit traction system of a contact system, power bag and closed-center system hybrid power supply, it is characterized in that: mainly comprise traction transformer, power bag, 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, and traction convertor is connected with traction electric machine; Diesel engine and electrical generator form the combustion power bag, and the output of electrical generator three-phase directly is connected with traction convertor, and closed-center system is connected with traction convertor intermediate dc bus.
2. contact system according to claim 1, the motor train unit traction system of power bag and closed-center system hybrid power supply, it is characterized in that: traction convertor comprises the traction transformer interface, the power packet interface, the closed-center system interface, the first pre-charging device, the second pre-charging device, the 3rd 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 four-quadrant rectifier, 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 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, described the 3rd 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 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 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 contact system according to claim 2, power bag and closed-center system hybrid power supply, it is characterized in that: described the first pre-charging device, the second pre-charging device and the 3rd pre-charging device include main contactor, precharge 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 and the 3rd pre-charging device to described Support Capacitor precharge respectively.
4. the motor train unit traction system of contact system according to claim 2, power bag 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 contact system according to claim 2, power bag 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.
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CN113489315B (en) * 2021-06-30 2022-09-09 中车大连电力牵引研发中心有限公司 Intermittent power supply traction controller based on integrated design
CN113489315A (en) * 2021-06-30 2021-10-08 中车大连电力牵引研发中心有限公司 Intermittent power supply traction controller based on integrated design
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CN113682153B (en) * 2021-08-27 2024-04-05 中车青岛四方机车车辆股份有限公司 Dual power supply control method and system based on pantograph and power battery
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