WO2023125018A1 - Main circuit of diesel-electric dual-powered traction converter - Google Patents

Main circuit of diesel-electric dual-powered traction converter Download PDF

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WO2023125018A1
WO2023125018A1 PCT/CN2022/139087 CN2022139087W WO2023125018A1 WO 2023125018 A1 WO2023125018 A1 WO 2023125018A1 CN 2022139087 W CN2022139087 W CN 2022139087W WO 2023125018 A1 WO2023125018 A1 WO 2023125018A1
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circuit
traction
quadrant
phase
main
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PCT/CN2022/139087
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French (fr)
Chinese (zh)
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陈宏�
马瑞
王雷
杨会敏
苑伟华
陈彦肖
王晓妮
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中车永济电机有限公司
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Publication of WO2023125018A1 publication Critical patent/WO2023125018A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/14—Arrangements for reducing ripples from dc input or output
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/02—Details of the control

Definitions

  • the present disclosure relates to the field of traction converters for high-speed trains, in particular to a main circuit of a traction converter with internal power and dual sources.
  • the locomotive traction mode is mainly divided into three types: one uses a single electric locomotive; the other uses a single diesel locomotive; the third uses a single electric locomotive + a diesel locomotive for double traction.
  • the main circuit of the traction converter equipped with it either adopts an independent catenary power supply for electric traction, or adopts an independent internal combustion main generator for power supply.
  • the main circuit of the dual-source power supply mode is not integrated together. Therefore just there is following defect: the one, single locomotive can not adopt internal combustion and electric power dual-source power supply mode, has not realized the main circuit of internal electric dual-source power collection; For power generation and power supply, in the event of extremely bad weather, the system redundancy is poor, and the self-rescue performance is poor.
  • the main circuit of the existing technical solution is mainly designed based on the difference of the power source.
  • Catenary power supply mainly adopts four-quadrant rectification to provide intermediate DC bus voltage, and the power device adopts controllable device IGBT; while diesel engine is used to drive the main generator for power supply, mainly adopts three-phase uncontrolled rectification, and power device adopts uncontrolled device diode;
  • the original main circuit design cannot realize the four-quadrant rectification and three-phase uncontrolled rectification functions at the same time.
  • the AC to DC part of the power mode and the internal combustion mode need to use different circuits and different power modules to realize.
  • the four-quadrant rectifier power module, three-phase uncontrolled rectifier module, and reverse chopper power module main circuit design in the traction converter are not simplified, there are many types of modules, many types of spare parts, and high spare parts and maintenance costs.
  • the "Fuxinghao" internal electric dual-source EMU suitable for the high-altitude 5100m operating environment uses electric power trains and internal combustion power trains at both ends.
  • the power trains are divided into 2 sets, and the maximum working voltage is DC2400V. If the internal electric dual-source power is integrated into one locomotive in the future, it will not be easy to realize the busbar with this level of voltage in terms of volume and weight; moreover, Fuxing does not have the DC3600V busbar voltage suitable for the high-altitude 5100m operating environment.
  • the present disclosure provides a main circuit of an internal-electric dual-source traction converter.
  • a main circuit of an internal power dual-source traction converter including a PMCF1 four-quadrant power supply circuit, a PMCF2 four-quadrant power supply circuit, a main generator power supply circuit, an intermediate circuit and a traction inverter wave circuit;
  • the PMCF1 four-quadrant power supply circuit includes a traction transformer TR-1, a pre-charging contactor AK1, a pre-charging resistor CHR1, a main contactor K11, a four-quadrant input current sensor CT (IN) 1, an internal power supply conversion isolation contact Rectifier K12, PMCF1 rectifier module, the connection relationship is as follows: the traction transformer TR-1 is powered by the power grid, the pre-charging contactor AK1 is connected in series with the pre-charging resistor CHR1, then connected in parallel with the main contactor K11, and then connected to the output of the traction transformer TR-1 end, the four-quadrant input current sensor CT(IN)1 is connected in series with the
  • the connection relationship is as follows: the traction transformer TR-2 is powered by the power grid, the pre-charging contactor AK2 is connected in series with the pre-charging resistor CHR2, and then connected in parallel with the main contactor K13, and then connected to the output terminal of the traction transformer TR-2 , the four-quadrant input current sensor CT (IN) 2 is connected to the output terminal of the traction transformer TR-2; the PMCF2 rectifier module is a four-quadrant rectifier with two-tube IGBTs connected in parallel, and the structure is the same as that of the PMCF1 rectifier module; the output side of the PMCF2 rectifier module is also A current sensor CT(IN) 8 is connected in series; the power supply circuit of the main generator is composed of a generator, a three-stage contactor KM11 for main power supply, and three-phase current sensors TA11, TA12, and TA13; The contactor KM11 controls whether it works, and each of the three-phase output lines is connected to a
  • the structure of the three-phase inverter plus chopper INV1 is: the three-phase inverter busbar in the converter connects TPU1 and TNU1 to form the U phase of the inverter, and connects TPVU1 and TNV1 to To form the V phase of the inverter, connect TPW1 and TNW1 to form the W phase of the inverter; connect OVT1 and OVT2 to the chopping phase through the overvoltage chopping busbar in the converter, and connect the U phase to the U phase inverter circuit
  • the W-phase current sensor CTW1 is connected to the W-phase inverter circuit, and the chopper current sensor CTB1 and the chopper resistor BR1 are connected in series to the circuit.
  • the three-level contactor KM11 of the main generator power supply is in the disconnected state, and the secondary windings of the transformers supply power to the grid for traction transformer TR-1 and traction transformer TR-2, respectively supplying two groups of four-quadrant rectifiers PMCF1 , PMCF2 provides single-phase alternating current, and 2 groups of four-quadrants adopt dual control, which effectively reduces the ripple current and improves the efficiency of the system.
  • the three-stage contactor KM11 of the main power supply is closed, the contactors K11, K12, K13, and the pre-charging contactors AK1 and AK2 are all in the disconnected state, and at the same time the pantograph of the whole vehicle In the state of lowering the bow, the whole vehicle realizes the internal combustion mode power supply, which is provided to the three-phase uncontrolled rectification circuit at the rear end.
  • the catenary fails to supply power, disconnect the main contactors K11, K12, K13, pre-charging contactors AK1, AK2, and close the third-level contactor KM11 of the main power supply, through the 2 phases of the PMCF1 power module and 1 phase of the PMCF2 power module
  • the parallel diodes connected in parallel at both ends of the IGBT form a three-phase uncontrolled rectifier with two diodes in parallel, and the three-phase uncontrolled rectification function under the internal combustion power supply mode is realized by means of the same module.
  • the four-quadrant and three-phase uncontrolled rectification functions are realized with the same module, which realizes the simplification of the rectification circuit, reduces the type and quantity of modules, reduces the cost of design, operation and maintenance spare parts, and at the same time can Reduce a certain installation space.
  • TPX11, TPX12, TNX11, TNX12-IGBT are connected in parallel to form a four-quadrant A phase through the four-quadrant busbar in the converter, and TPY11, TPY12, TNY11, TNY12-IGBT are connected in parallel to form a four-quadrant Phase B, thus completing the four-quadrant rectifier with two tubes connected in parallel.
  • the entire traction converter adopts the same type of power module, and the functions of a four-quadrant rectifier connected in parallel with two tubes, a three-phase inverter and an overvoltage suppression chopper can be realized conveniently through the connecting busbar and copper bar in the cabinet. .
  • the main contactors K11, K12, K13, pre-charging contactors AK1, AK2 and main generator three-pole contactor KM11 are contactors related to internal power conversion.
  • the PMCF1 rectifier module has the same structure as the PMCF2 rectifier module, the IGBTs assembled in the modules are all the same devices, and the IGBT bridge arms of each branch are equipped with the same drive board and configuration board.
  • the three-phase inverter plus chopper INV structures in the traction inverter chopper circuit are all the same, and the same IGBT devices are used, and the IGBT bridge arms of each branch are equipped with the same drive board and configuration board.
  • the PMCF1 rectifier module, the PMCF2 rectifier module, the IGBT assembled by the three-phase inverter chopper INV, the driver board, the configuration board, the water cooling board, the electrical connector, the components of the composite busbar, the shape, interface and The installation dimensions are exactly the same, which can realize the simplification of the power modules in the traction part of the main circuit, reduce the types of power modules, and reduce the types and quantities of spare parts, thereby greatly reducing design and operation and maintenance costs.
  • the three-phase output voltage of the three-phase inverter plus chopper INV is connected to the traction motor.
  • the main circuit also supplies power to the auxiliary converter and the train power supply circuit, and the auxiliary converter and the train power supply are connected to the DC voltage output terminals of the PMCF1 rectifier module and the PMCF2 rectifier module to realize the integrated power supply of the main and auxiliary model.
  • the resistance values of the voltage dividing resistors GRe1 and GRe2 are the same, which is equivalent to using 1/2 resistance grounding detection, which can reduce the rated insulation voltage of the main circuit, so that the rated insulation voltage of the main circuit is half of the original, greatly reducing the main circuit voltage.
  • the rated impulse voltage of key electrical components such as IGBTs and composite busbars in the circuit can effectively reduce the design cost of electrical components; the ground detection circuit is also connected with anti-interference filter capacitors at both ends of GRe2, which can effectively prevent false ground fault reports, which can Effectively improve the accuracy of ground fault detection.
  • the components in the main circuit are all components suitable for a high altitude of 5100m and a high voltage of DC3600V, which can realize a plateau and high voltage operating environment.
  • DC3600V bus voltage is adopted, and the intermediate support capacitor and grounding detection circuit are shared, which is convenient for light weight and high density: when the single-axis power exceeds 1200kW, DC3600V bus voltage can effectively reduce the main circuit current and reduce the current conversion
  • sharing the intermediate capacitor FC1 and the grounding detection circuit is beneficial to realize the lightweight and high densification.
  • the present disclosure has the following beneficial effects: the main circuit of an internal electric dual-source traction converter provided by the present disclosure will integrate internal combustion and electric dual-source power supply;
  • the main circuit of the transformer + chopper module is simplified; the entire traction converter adopts the same power module, and the four-quadrant rectification, traction inverter + chopper functions are realized through the busbar in the traction converter cabinet;
  • the same power module can realize the four-quadrant rectification function of the grid power supply condition and the three-phase uncontrolled rectification function of the internal combustion main generator power supply condition;
  • Dual control can effectively reduce the total harmonic current on the network voltage side; adopt DC3600V voltage level to reduce the main circuit current, effectively reduce the conductive area of traction converters, vehicle copper bars and cables, and reduce the vehicle and the volume and weight of the traction converter; use high-voltage components to be suitable for high-altitude operating environments; each traction inverter has an independent chopper circuit, which improves the performance of the chopper circuit when the
  • FIG. 1 is a general circuit schematic diagram of the present disclosure.
  • Fig. 2 is a circuit diagram of an internal electric dual-source power supply of the present disclosure.
  • FIG. 3 is a circuit schematic diagram of the PCMF power module of the present disclosure.
  • FIG. 4 is a circuit schematic diagram of the INV power module of the present disclosure.
  • a main circuit of an internal electric dual-source traction converter comprising a PMCF1 four-quadrant power supply circuit, a PMCF2 four-quadrant power supply circuit, a main generator power supply circuit, an intermediate circuit and a traction inverter chopper circuit;
  • PMCF1 four-quadrant power supply circuit includes traction transformer TR-1, pre-charging contactor AK1, pre-charging resistor CHR1, main contactor K11, four-quadrant input current sensor CT(IN)1, internal power supply conversion isolation contactor K12, PMCF1 rectifier
  • the connection relationship of the module is as follows: the traction transformer TR-1 is powered by the power grid, the pre-charging contactor AK1 is connected in series with the pre-charging resistor CHR1 and connected in parallel with the main contactor K11, and then connected to the output terminal of the traction transformer TR-1, and the four-quadrant input
  • the current sensor CT(IN)1 is connected in series with the internal power supply conversion isolation contactor K12 and then connected to the
  • the main contactors K11, K12, K13, the pre-charging contactors AK1, AK2 and the main generator three-pole contactor KM11 are contactors related to internal power conversion;
  • three-phase inverter plus chopping The three-phase output voltage of the wave INV is connected to the traction motor;
  • the main circuit is also powered for the auxiliary converter and the train power supply circuit, and the auxiliary converter and the train are powered and connected to the DC voltage of the PMCF1 rectifier module and the PMCF2 rectifier module output terminal;
  • the resistance values of the voltage dividing resistors GRe1 and GRe2 are the same;
  • the three-phase inverter and chopper INV are provided with three, namely INV
  • Axle load 25t;
  • Operating mode electric mode, internal combustion mode
  • the traction converter is designed according to the main circuit scheme of the new internal power dual-source power traction converter.
  • the entire tractor is equipped with 5 power modules of the same type, through 1 main generator three-stage contactor, 3 main contactor rectifiers,
  • the combination of different switching states of the two pre-charging contactors realizes the four-quadrant rectification function under the catenary power supply condition, and realizes the three-phase uncontrolled rectification function under the main generator power supply condition.
  • PMCF1 rectifier, PMCF2 rectifier, traction inverter + chopper INV1, traction inverter + chopper INV2 and traction inverter + chopper INV3 use the same power module, through the rectifier busbar, inverter busbar and
  • the chopper busbar realizes the functions of four-quadrant rectification, three-phase uncontrolled rectification, traction inverter and overvoltage suppression chopper.
  • the bus voltage of the traction converter adopts DC3600V, and the electrical components adopt high insulation, which can be applied to the operating environment at a high altitude of 5100m. Adopting this voltage level can effectively reduce the current of the main circuit, which is conducive to reducing the size and weight of the converter, so as to meet the Requirements for internal electrical integration, lightweight, high density, and high altitude.
  • the main contactor K11, K12 or K13 closes, and provides single-phase AC power to the two groups of four-quadrant rectifiers PMCF1 and PMCF2 respectively, and realizes the four-quadrant rectification function through dual control , 2 groups of four quadrants adopt dual control to effectively reduce the ripple current.
  • TPX11, TPX12, TNX11, TNX12-IGBT are connected in parallel to form a four-quadrant A phase through the four-quadrant busbar in the converter, and TPY11, TPY12, TNY11, TNY12-IGBT are connected in parallel to form a Four-quadrant B-phase, thus completing the four-quadrant rectifier with two tubes connected in parallel, as shown in Fig. 3 .

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Abstract

The present disclosure relates to the field of traction converters of high speed trains. Disclosed is a main circuit of a diesel-electric dual-powered traction converter. The main circuit has a dual-source power supply integrated with same, namely, both internal combustion and electric power. A dual-tube four-quadrant module and an inversion and chopping module are used, such that the main circuit is simplified and unified. The whole traction converter uses the same power module, and the functions of four-quadrant rectification, three-phase uncontrolled rectification, and traction inversion and chopping are realized by means of a busbar in a cabinet of the traction converter. By means of different combinations of related contactors at an input end, the same power module can realize a four-quadrant rectification function of a power-grid power supply working condition and a three-phase uncontrolled rectification function of a main internal combustion generator power supply working condition. The main circuit uses two rectification units and three inverters, two four-quadrant rectification inputs and outputs are connected in parallel, and double control is used, such that a total harmonic current on a grid voltage side can be effectively reduced. A voltage level of DC 3600 V is used, thereby reducing the current of a main loop, and a component that is applicable to a high altitude of 5100 m is used, thereby realizing a highland application environment, and reducing the volume and weight of the entire train and the traction converter. The present invention has significant economic and social benefits.

Description

一种内电双源牵引变流器主电路A main circuit of internal power dual-source traction converter
相关申请的交叉引用Cross References to Related Applications
本公开基于申请号为202111643711.7、申请日为2021年12月30日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此以引入方式并入本申请。This disclosure is based on a Chinese patent application with application number 202111643711.7 and a filing date of December 30, 2021, and claims the priority of this Chinese patent application. The entire content of this Chinese patent application is hereby incorporated into this application by reference.
技术领域technical field
本公开涉及高速列车的牵引变流器领域，具体为一种内电双源牵引变流器主电路。The present disclosure relates to the field of traction converters for high-speed trains, in particular to a main circuit of a traction converter with internal power and dual sources.
背景技术Background technique
随着我国经济实力的进一步增强，以及中、高速动车、机车的高速发展；同时为了进一步提升边远、荒漠、高山、高原等大自然环境极其恶劣的地方，尤其是提升川藏地区客、货运能力，解决同一列车在电气化铁路线和非电气化铁路线混合运营的问题；同时为促进改善川藏铁路线民生、富民兴藏、长期建藏、凝聚人心作为重要原则和出发落脚点；或者在恶劣自然环境(冻雨等天气接触网结冰，造成大面积接触网断电)造成接触网大面中断，电力无法牵引时，采用适用于高原运用环境的柴油机拖动主发产生三相交流电，通过内电双源动力牵引变流器进行牵引，可以实施紧急救援、保证客、货机车的正常运行，确保铁路运输的安全。With the further enhancement of China's economic strength, and the rapid development of medium and high-speed trains and locomotives; at the same time, in order to further improve places with extremely harsh natural environments such as remote areas, deserts, mountains, and plateaus, especially the passenger and freight capacity in the Sichuan-Tibet area , to solve the problem of mixed operation of the same train on electrified railway lines and non-electrified railway lines; at the same time, it is an important principle and starting point to promote the improvement of people's livelihood on the Sichuan-Tibet railway line, enrich the people and rejuvenate Tibet, build Tibet for a long time, and unite people's hearts; When the environment (freezing rain and other weather catenary freezes, causing a large area of catenary power outage) causes a large area of catenary to be interrupted, and the power cannot be drawn, use a diesel engine suitable for plateau operating environments to drive the main generator to generate three-phase alternating current, which is passed through the internal power supply. The dual-source power traction converter for traction can implement emergency rescue, ensure the normal operation of passenger and freight locomotives, and ensure the safety of railway transportation.
目前机车牵引模式主要分为3种：其一采用1台单独的电力机车；其二采用1台单独的内燃机车；其三采用1台电力机车+1台内燃机车重联牵引。其配装的牵引变流器主电路或者采用独立的接触网供电电力牵引，或者采用独立的内燃主发供电电力牵引，2种供电模式的牵引变流器主电路都是各自独立，内燃和电力双源动力供电模式的主电路是没有集成在一起的。因此就存在如下缺 陷：一是单台机车不能采用内燃和电力双源动力供电模式，没实现内电双源动力集一体的主电路；二是不管单独采用接触网供电还是单独采用柴油机拖动主发供电，在出现极其恶劣天气，***冗性较差，自主救援性差。At present, the locomotive traction mode is mainly divided into three types: one uses a single electric locomotive; the other uses a single diesel locomotive; the third uses a single electric locomotive + a diesel locomotive for double traction. The main circuit of the traction converter equipped with it either adopts an independent catenary power supply for electric traction, or adopts an independent internal combustion main generator for power supply. The main circuit of the dual-source power supply mode is not integrated together. Therefore just there is following defect: the one, single locomotive can not adopt internal combustion and electric power dual-source power supply mode, has not realized the main circuit of internal electric dual-source power collection; For power generation and power supply, in the event of extremely bad weather, the system redundancy is poor, and the self-rescue performance is poor.
现有的技术方案的主电路主要基于动力源的不同进行设计的。采用接触网供电主要采用四象限整流提供中间直流母线电压，功率器件采用可控型器件IGBT；而采用柴油机拖动主发电机供电主要采用三相不控整流，功率器件采用不控型器件二极管；原有的主电路设计不能够同时实现四象限整流和三相不控整流功能，电力模式和内燃模式的交流转直流部分需要采用不同的电路，需要不同的功率模块来实现，因此不同供电方式的牵引变流器中四象限整流功率模块、三相不控整流模块，逆斩波功率模块主电路设计没有简统化、模块种类多、备品种类多、库存备品及维修成本高。The main circuit of the existing technical solution is mainly designed based on the difference of the power source. Catenary power supply mainly adopts four-quadrant rectification to provide intermediate DC bus voltage, and the power device adopts controllable device IGBT; while diesel engine is used to drive the main generator for power supply, mainly adopts three-phase uncontrolled rectification, and power device adopts uncontrolled device diode; The original main circuit design cannot realize the four-quadrant rectification and three-phase uncontrolled rectification functions at the same time. The AC to DC part of the power mode and the internal combustion mode need to use different circuits and different power modules to realize. Therefore, different power supply methods The four-quadrant rectifier power module, three-phase uncontrolled rectifier module, and reverse chopper power module main circuit design in the traction converter are not simplified, there are many types of modules, many types of spare parts, and high spare parts and maintenance costs.
目前适用高海拔5100m运用环境的“复兴号”内电双源动车组采用两端分别编挂电力动力车和内燃动力车，动力车分为2台，最高工作电压为DC2400V。假如未来将内电双源动力集一台机车，采用该等级电压的母线从体积、重量都是不容易实现的；而且复兴号也不具备适用高海拔5100m运用环境的DC3600V母线电压。At present, the "Fuxinghao" internal electric dual-source EMU suitable for the high-altitude 5100m operating environment uses electric power trains and internal combustion power trains at both ends. The power trains are divided into 2 sets, and the maximum working voltage is DC2400V. If the internal electric dual-source power is integrated into one locomotive in the future, it will not be easy to realize the busbar with this level of voltage in terms of volume and weight; moreover, Fuxing does not have the DC3600V busbar voltage suitable for the high-altitude 5100m operating environment.
因此基于以上原因，设计一种能够适用高海拔、集内电双源动力一体、功率模块简统化、运营及维修成本低的牵引变流器主电路显得尤为重要。Therefore, based on the above reasons, it is particularly important to design a traction converter main circuit that is suitable for high altitudes, integrates internal power sources, simplifies power modules, and has low operating and maintenance costs.
发明内容Contents of the invention
本公开为了解决高海拔下的电力及内燃双源动力供电集成为一体的问题，提供了一种内电双源牵引变流器主电路。In order to solve the problem of integrating electric power and internal combustion dual-source power supply at high altitudes, the present disclosure provides a main circuit of an internal-electric dual-source traction converter.
本公开是通过如下技术方案来实现的：一种内电双源牵引变流器主电路，包括PMCF1四象限供电电路、PMCF2四象限供电电路、主发电机供电电路、中间电路及牵引逆变斩波电路；所述PMCF1四象限供电电路包括牵引变压器TR-1、预充电接触器AK1、预充电电阻CHR1、主接触器K11、四象限输入电流传感器CT(IN)1、内电供电转换隔离接触器K12、PMCF1整流模块，连接关 系如下：所述牵引变压器TR-1由电网供电，预充电接触器AK1与预充电电阻CHR1串联后与主接触器K11并联，然后接至牵引变压器TR-1输出端，四象限输入电流传感器CT(IN)1与内电供电转换隔离接触器K12串联后接至牵引变压器TR-1输出端；所述PMCF1整流模块为双管IGBT并联的四象限整流器，结构为：变流器中的四象限母排将TPX11、TPX12、TNX11、TNX12-IGBT并联组成四象限A相，TPY11、TPY12、TNY11、TNY12-IGBT并联组成四象限B相；PMCF1整流模块的输出侧还串接有电流传感器CT(IN)7；所述PMCF2四象限供电电路包括牵引变压器TR-2、预充电接触器AK2、预充电电阻CHR2、主接触器K13、四象限输入电流传感器CT(IN)2、PMCF2整流模块；连接关系如下：所述牵引变压器TR-2由电网供电，预充电接触器AK2与预充电电阻CHR2串联后与主接触器K13并联，然后接至牵引变压器TR-2输出端，四象限输入电流传感器CT(IN)2接至牵引变压器TR-2输出端；所述PMCF2整流模块为双管IGBT并联的四象限整流器，结构与PMCF1整流模块相同；PMCF2整流模块的输出侧还串接有电流传感器CT(IN)8；所述主发电机供电电路由发电机、主发供电三级接触器KM11、三相电流传感器TA11、TA12、TA13构成；发电机通过主发供电三级接触器KM11控制是否工作，且三相输出线路各连接一个电流传感器，分别为TA11、TA12、TA13；输出电压接入PMCF1整流模块与PMCF2整流模块；所述中间电路包括中间电容FC1、中间慢放电阻DR1、指示灯电路、电压传感器PT1与接地检测回路，所述中间电容FC1、中间慢放电阻DR1与电压传感器PT1均接至PMCF1整流模块与PMCF2整流模块的直流输出电路上，所述指示灯电路为电阻HR1与指示灯HD1串联，然后接至PMCF1整流模块与PMCF2整流模块的直流输出电路上；所述接地检测回路包括分压电阻GRe1、GRe2、防干扰滤波电容GC1及电压传感器PT2，分压电阻GRe1、GRe2串联接入直流输出电路上，防干扰滤波电容GC1及电压传感器PT2并联至GRe2两端并接地；所述牵引逆变斩波电路包括多个三相逆变加斩波INV，编号为INV1～INVn，且结构相同，三相逆变加斩波INV1的结构为：变流器中的三相逆变母排将TPU1、TNU1连接成逆变器U相，将TPVU1、TNV1 连接成逆变器V相，将TPW1、TNW1连接成逆变器W相；通过变流器中的过压斩波母排将OVT1、OVT2连接斩波相，U相逆变电路上连接有U相电流传感器CTU1，W相逆变电路上连接有W相电流传感器CTW1，电路上还串接有斩波电流传感器CTB1与斩波电阻BR1。The present disclosure is achieved through the following technical solutions: a main circuit of an internal power dual-source traction converter, including a PMCF1 four-quadrant power supply circuit, a PMCF2 four-quadrant power supply circuit, a main generator power supply circuit, an intermediate circuit and a traction inverter wave circuit; the PMCF1 four-quadrant power supply circuit includes a traction transformer TR-1, a pre-charging contactor AK1, a pre-charging resistor CHR1, a main contactor K11, a four-quadrant input current sensor CT (IN) 1, an internal power supply conversion isolation contact Rectifier K12, PMCF1 rectifier module, the connection relationship is as follows: the traction transformer TR-1 is powered by the power grid, the pre-charging contactor AK1 is connected in series with the pre-charging resistor CHR1, then connected in parallel with the main contactor K11, and then connected to the output of the traction transformer TR-1 end, the four-quadrant input current sensor CT(IN)1 is connected in series with the internal power supply conversion isolation contactor K12 and then connected to the output end of the traction transformer TR-1; the PMCF1 rectifier module is a four-quadrant rectifier with two-tube IGBTs connected in parallel, and the structure is : The four-quadrant busbar in the converter connects TPX11, TPX12, TNX11, and TNX12-IGBT in parallel to form a four-quadrant phase A; TPY11, TPY12, TNY11, and TNY12-IGBT are connected in parallel to form a four-quadrant phase B; A current sensor CT (IN) 7 is connected in series; the PMCF2 four-quadrant power supply circuit includes a traction transformer TR-2, a pre-charging contactor AK2, a pre-charging resistor CHR2, a main contactor K13, and a four-quadrant input current sensor CT (IN) 2. PMCF2 rectifier module; the connection relationship is as follows: the traction transformer TR-2 is powered by the power grid, the pre-charging contactor AK2 is connected in series with the pre-charging resistor CHR2, and then connected in parallel with the main contactor K13, and then connected to the output terminal of the traction transformer TR-2 , the four-quadrant input current sensor CT (IN) 2 is connected to the output terminal of the traction transformer TR-2; the PMCF2 rectifier module is a four-quadrant rectifier with two-tube IGBTs connected in parallel, and the structure is the same as that of the PMCF1 rectifier module; the output side of the PMCF2 rectifier module is also A current sensor CT(IN) 8 is connected in series; the power supply circuit of the main generator is composed of a generator, a three-stage contactor KM11 for main power supply, and three-phase current sensors TA11, TA12, and TA13; The contactor KM11 controls whether it works, and each of the three-phase output lines is connected to a current sensor, namely TA11, TA12, and TA13; the output voltage is connected to the PMCF1 rectifier module and the PMCF2 rectifier module; the intermediate circuit includes the intermediate capacitor FC1, the intermediate slow release Resistor DR1, indicator light circuit, voltage sensor PT1 and grounding detection circuit, the intermediate capacitor FC1, intermediate slow-discharging resistor DR1 and voltage sensor PT1 are all connected to the DC output circuits of PMCF1 rectifier module and PMCF2 rectifier module, and the indicator lamp The circuit is a resistor HR1 connected in series with the indicator light HD1, and then connected to the DC output circuit of the PMCF1 rectifier module and the PMCF2 rectifier module; The piezoresistors GRe1 and GRe2 are connected in series to the DC output circuit, the anti-interference filter capacitor GC1 and the voltage sensor PT2 are connected in parallel to both ends of GRe2 and grounded; the traction inverter chopper circuit includes a plurality of three-phase inverter plus chopper INV, The numbers are INV1～INVn, and the structure is the same. The structure of the three-phase inverter plus chopper INV1 is: the three-phase inverter busbar in the converter connects TPU1 and TNU1 to form the U phase of the inverter, and connects TPVU1 and TNV1 to To form the V phase of the inverter, connect TPW1 and TNW1 to form the W phase of the inverter; connect OVT1 and OVT2 to the chopping phase through the overvoltage chopping busbar in the converter, and connect the U phase to the U phase inverter circuit As for the current sensor CTU1, the W-phase current sensor CTW1 is connected to the W-phase inverter circuit, and the chopper current sensor CTB1 and the chopper resistor BR1 are connected in series to the circuit.
本公开的主要工作原理为：The main working principles of the present disclosure are:
1)当主电路采用网压供电时，主发供电三级接触器KM11处于断开状态，变压器副边绕组牵引变压器TR-1、牵引变压器TR-2进行电网供电，分别给2组四象限整流器PMCF1、PMCF2提供单相交流电，2组四象限采用两重化控制，有效减小纹波电流，提高了***的效率。当主电路采用柴油机拖动主发电机供电时，主发供电三级接触器KM11闭合，接触器K11、K12、K13，预充电接触器AK1、AK2均处于断开状态，同时整车的受电弓处于降弓状态，这样整车就实现了内燃模式供电，提供给后端的三相不控整流电路。1) When the main circuit is powered by grid voltage, the three-level contactor KM11 of the main generator power supply is in the disconnected state, and the secondary windings of the transformers supply power to the grid for traction transformer TR-1 and traction transformer TR-2, respectively supplying two groups of four-quadrant rectifiers PMCF1 , PMCF2 provides single-phase alternating current, and 2 groups of four-quadrants adopt dual control, which effectively reduces the ripple current and improves the efficiency of the system. When the main circuit is powered by a diesel engine driving the main generator, the three-stage contactor KM11 of the main power supply is closed, the contactors K11, K12, K13, and the pre-charging contactors AK1 and AK2 are all in the disconnected state, and at the same time the pantograph of the whole vehicle In the state of lowering the bow, the whole vehicle realizes the internal combustion mode power supply, which is provided to the three-phase uncontrolled rectification circuit at the rear end.
2)四象限整流和三相不控整流采用同种功率模块实现：2) Four-quadrant rectification and three-phase uncontrolled rectification are realized by the same power module:
将主发供电三级接触器KM11断开，通过预充电接触器AK1(AK2)和预充电电阻CHR1(CHR2)完成预充电后，主接触器K11、K12或K13闭合，提供给采用双管IGBT并联的四象限整流器PMCF1(PMCF2)单相交流电，通过两重化控制，实现四象限整流功能。Disconnect the three-level contactor KM11 of the main power supply, and after the pre-charging is completed through the pre-charging contactor AK1 (AK2) and the pre-charging resistor CHR1 (CHR2), the main contactor K11, K12 or K13 is closed, providing power to the dual-tube IGBT The four-quadrant rectifier PMCF1 (PMCF2) connected in parallel with single-phase alternating current realizes the four-quadrant rectification function through dual control.
在接触网无法供电时，将主接触器K11、K12、K13，预充电接触器AK1、AK2断开，主发供电三级接触器KM11闭合，通过PMCF1功率模块的2相、PMCF2功率模块的1相反并联在IGBT两端的并联二极管组成双二极管并联的三相不控整流器，借助相同模块实现了内燃供电模式下的三相不控整流功能。When the catenary fails to supply power, disconnect the main contactors K11, K12, K13, pre-charging contactors AK1, AK2, and close the third-level contactor KM11 of the main power supply, through the 2 phases of the PMCF1 power module and 1 phase of the PMCF2 power module On the contrary, the parallel diodes connected in parallel at both ends of the IGBT form a three-phase uncontrolled rectifier with two diodes in parallel, and the three-phase uncontrolled rectification function under the internal combustion power supply mode is realized by means of the same module.
通过接触器不同组合，借助相同模块实现四象限及三相不控整流功能，实现了整流电路的简统化、减少了模块的种类和数量，降低设计、运营、维修备品的成本，同时又能减小一定安装空间。Through different combinations of contactors, the four-quadrant and three-phase uncontrolled rectification functions are realized with the same module, which realizes the simplification of the rectification circuit, reduces the type and quantity of modules, reduces the cost of design, operation and maintenance spare parts, and at the same time can Reduce a certain installation space.
3)四象限整流PMCF和三相逆变+斩波INV采用4个支路组成，每个支路装配相同的IGBT，每个IGBT桥臂均配有相同的驱动板和配置板。3) Four-quadrant rectifier PMCF and three-phase inverter + chopper INV are composed of four branches, each branch is equipped with the same IGBT, and each IGBT bridge arm is equipped with the same driver board and configuration board.
在需要实现四象限整流功能时，通过变流器中的四象限母排将TPX11、 TPX12、TNX11、TNX12-IGBT并联组成四象限A相，将TPY11、TPY12、TNY11、TNY12-IGBT并联组成四象限B相，这样就完成了双管并联的四象限整流器。When the four-quadrant rectification function needs to be realized, TPX11, TPX12, TNX11, TNX12-IGBT are connected in parallel to form a four-quadrant A phase through the four-quadrant busbar in the converter, and TPY11, TPY12, TNY11, TNY12-IGBT are connected in parallel to form a four-quadrant Phase B, thus completing the four-quadrant rectifier with two tubes connected in parallel.
在需要逆变+斩波功能时，通过变流器中的三相逆变母排(只叙述其中一个INV1)将TPU1、TNU1连接成逆变器U相，将TPVU1、TNV1连接成逆变器V相，将TPW1、TNW1连接成逆变器W相；通过变流器中的过压斩波母排将OVT1、OVT2连接斩波相。When the inverter + chopping function is needed, connect TPU1 and TNU1 to form the U phase of the inverter through the three-phase inverter busbar in the converter (only one INV1 is described), and connect TPVU1 and TNV1 to form an inverter For phase V, connect TPW1 and TNW1 to phase W of the inverter; connect OVT1 and OVT2 to the chopper phase through the overvoltage chopper busbar in the converter.
因此，整个牵引变流器采用同一类功率模块，通过柜体内的连接母排、铜排就可方便地实现了双管并联的四象限整流器、三相逆变器及过压抑制斩波器功能。Therefore, the entire traction converter adopts the same type of power module, and the functions of a four-quadrant rectifier connected in parallel with two tubes, a three-phase inverter and an overvoltage suppression chopper can be realized conveniently through the connecting busbar and copper bar in the cabinet. .
优选的，所述主接触器K11、K12、K13，预充电接触器AK1、AK2及主发电机三极接触器KM11为内电转换相关接触器。Preferably, the main contactors K11, K12, K13, pre-charging contactors AK1, AK2 and main generator three-pole contactor KM11 are contactors related to internal power conversion.
优选的，所述PMCF1整流模块与PMCF2整流模块结构相同，模块内装配的IGBT均为相同器件，且每个支路的IGBT桥臂均配有相同的驱动板和配置板。所述牵引逆变斩波电路内的三相逆变加斩波INV结构全部相同，且采用相同的IGBT器件，每个支路的IGBT桥臂均配有相同的驱动板和配置板。更进一步的，所述PMCF1整流模块、PMCF2整流模块、三相逆变斩波INV装配的IGBT、驱动板、配置板、水冷板、电连接器、复合母排的部件，模块的外形、接口及安装尺寸完全相同，这样可以实现该主电路牵引部分的功率模块的简统化，减少了功率模块种类、减少备品种类与数量，从而大大降低设计与运维成本。Preferably, the PMCF1 rectifier module has the same structure as the PMCF2 rectifier module, the IGBTs assembled in the modules are all the same devices, and the IGBT bridge arms of each branch are equipped with the same drive board and configuration board. The three-phase inverter plus chopper INV structures in the traction inverter chopper circuit are all the same, and the same IGBT devices are used, and the IGBT bridge arms of each branch are equipped with the same drive board and configuration board. Furthermore, the PMCF1 rectifier module, the PMCF2 rectifier module, the IGBT assembled by the three-phase inverter chopper INV, the driver board, the configuration board, the water cooling board, the electrical connector, the components of the composite busbar, the shape, interface and The installation dimensions are exactly the same, which can realize the simplification of the power modules in the traction part of the main circuit, reduce the types of power modules, and reduce the types and quantities of spare parts, thereby greatly reducing design and operation and maintenance costs.
进一步的，三相逆变加斩波INV的三相输出电压接至牵引电机。Further, the three-phase output voltage of the three-phase inverter plus chopper INV is connected to the traction motor.
优选的，所述主电路还为辅助变流器与列车供电电路供电，所述辅助变流器及列车供电并接入PMCF1整流模块与PMCF2整流模块的直流电压输出端，实现主辅一体化供电模式。Preferably, the main circuit also supplies power to the auxiliary converter and the train power supply circuit, and the auxiliary converter and the train power supply are connected to the DC voltage output terminals of the PMCF1 rectifier module and the PMCF2 rectifier module to realize the integrated power supply of the main and auxiliary model.
优选的，所述分压电阻GRe1、GRe2阻值相同，这样相当于采用1/2电阻接地检测，可以降低主回路的额定绝缘电压，使得主回路的额定绝缘电压为原来一半，大大降低了主回路中IGBT、复合母排等关键电气部件的额定冲击电压， 有效降低电气部件的设计成本；接地检测电路还在GRe2两端并接有防干扰滤波电容，可以有效防止误报接地故障，这样能够有效提高接地故障检测的准确性。Preferably, the resistance values of the voltage dividing resistors GRe1 and GRe2 are the same, which is equivalent to using 1/2 resistance grounding detection, which can reduce the rated insulation voltage of the main circuit, so that the rated insulation voltage of the main circuit is half of the original, greatly reducing the main circuit voltage. The rated impulse voltage of key electrical components such as IGBTs and composite busbars in the circuit can effectively reduce the design cost of electrical components; the ground detection circuit is also connected with anti-interference filter capacitors at both ends of GRe2, which can effectively prevent false ground fault reports, which can Effectively improve the accuracy of ground fault detection.
优选的，所述主电路内的部件均采用适用于高海拔5100m、高电压DC3600V的部件，能够实现高原、高压的运行环境。采用DC3600V电压等级母线电压，共用中间支撑电容、接地检测回路、便于实现轻量化及高密度化：在单轴功率超过1200kW时，采用DC3600V母线电压，能够有效减小主回路电流，减小变流器体积及重量；同时共用中间电容FC1，接地检测回路(分压电阻GRe1、GRe2，滤波电容GC1及电压传感器PT2组成)有利于实现内电双源动力集一体牵引变流器的轻量化及高密度化。内电双源动力变流器高海拔5100m高原环境的实现：为了使内电双源动力牵引变流器能够适用高海拔5100m高原环境，牵引变流器中所有部件，包括IGBT、电接触器、复合母排、放电电阻、复合母排、绝缘板以及连接电缆等，均采用10.2kV的耐压要求，柜内导电部件之间的绝缘及爬电距离均按照不低于高海拔5100m修正系数进行设计。Preferably, the components in the main circuit are all components suitable for a high altitude of 5100m and a high voltage of DC3600V, which can realize a plateau and high voltage operating environment. DC3600V bus voltage is adopted, and the intermediate support capacitor and grounding detection circuit are shared, which is convenient for light weight and high density: when the single-axis power exceeds 1200kW, DC3600V bus voltage can effectively reduce the main circuit current and reduce the current conversion At the same time, sharing the intermediate capacitor FC1 and the grounding detection circuit (composed of voltage dividing resistors GRe1, GRe2, filter capacitor GC1 and voltage sensor PT2) is beneficial to realize the lightweight and high densification. The realization of the high-altitude 5100m plateau environment of the internal power dual-source power converter: In order to make the internal power dual-source power traction converter suitable for the high-altitude 5100m plateau environment, all components in the traction converter, including IGBT, electrical contactor, Composite busbars, discharge resistors, composite busbars, insulating boards and connecting cables, etc., all adopt the withstand voltage requirement of 10.2kV, and the insulation and creepage distances between conductive parts in the cabinet shall be adjusted according to the correction coefficient of not less than 5100m at high altitude design.
与现有技术相比本公开具有以下有益效果：本公开所提供的一种内电双源牵引变流器主电路，将集内燃和电力双源供电于一体；采用双管四象限模块和逆变+斩波模块主电路简统化；整个牵引变流器采用同一个功率模块，通过牵引变流器柜体中的母排实现四象限整流、牵引逆变+斩波功能；通过输入端接触器的不同组合，同一功率模块能够实现电网供电工况的四象限整流和内燃主发供电工况的三相不控整流功能；主电路采用两整三逆，两个四象限整流输出并联，采用两重化控制，可以有效降低网压侧总的谐波电流；采用DC3600V的电压等级，减小主回路电流，有效降低牵引变流器、整车铜排、电缆的导电面积，减小整车及牵引变流器体积与重量；采用高电压等级部件以适用于高海拔运用环境；每个牵引逆变器都有独立的斩波回路，提高了母线电压在出现过压时，斩波回路的冗余性、可靠性；采用该主电路，减少了功率模块备品的种类和数量，大大降低了运行成本和维修成本，具有明显的经济和社会效益。Compared with the prior art, the present disclosure has the following beneficial effects: the main circuit of an internal electric dual-source traction converter provided by the present disclosure will integrate internal combustion and electric dual-source power supply; The main circuit of the transformer + chopper module is simplified; the entire traction converter adopts the same power module, and the four-quadrant rectification, traction inverter + chopper functions are realized through the busbar in the traction converter cabinet; The same power module can realize the four-quadrant rectification function of the grid power supply condition and the three-phase uncontrolled rectification function of the internal combustion main generator power supply condition; Dual control can effectively reduce the total harmonic current on the network voltage side; adopt DC3600V voltage level to reduce the main circuit current, effectively reduce the conductive area of traction converters, vehicle copper bars and cables, and reduce the vehicle and the volume and weight of the traction converter; use high-voltage components to be suitable for high-altitude operating environments; each traction inverter has an independent chopper circuit, which improves the performance of the chopper circuit when the bus voltage is overvoltage. Redundancy and reliability; the use of this main circuit reduces the types and quantities of power module spare parts, greatly reduces operating costs and maintenance costs, and has obvious economic and social benefits.
附图说明Description of drawings
图1为本公开的总电路原理图。FIG. 1 is a general circuit schematic diagram of the present disclosure.
图2为本公开的内电双源供电电路图。Fig. 2 is a circuit diagram of an internal electric dual-source power supply of the present disclosure.
图3为本公开的PCMF功率模块电路原理图。FIG. 3 is a circuit schematic diagram of the PCMF power module of the present disclosure.
图4为本公开的INV功率模块电路原理图。FIG. 4 is a circuit schematic diagram of the INV power module of the present disclosure.
具体实施方式Detailed ways
以下结合具体实施例对本公开作进一步说明。The present disclosure will be further described below in conjunction with specific embodiments.
一种内电双源牵引变流器主电路，如图1所示：包括PMCF1四象限供电电路、PMCF2四象限供电电路、主发电机供电电路、中间电路及牵引逆变斩波电路；所述PMCF1四象限供电电路包括牵引变压器TR-1、预充电接触器AK1、预充电电阻CHR1、主接触器K11、四象限输入电流传感器CT(IN)1、内电供电转换隔离接触器K12、PMCF1整流模块，连接关系如下：所述牵引变压器TR-1由电网供电，预充电接触器AK1与预充电电阻CHR1串联后与主接触器K11并联，然后接至牵引变压器TR-1输出端，四象限输入电流传感器CT(IN)1与内电供电转换隔离接触器K12串联后接至牵引变压器TR-1输出端；所述PMCF1整流模块为双管IGBT并联的四象限整流器，结构为：变流器中的四象限母排将TPX11、TPX12、TNX11、TNX12-IGBT并联组成四象限A相，TPY11、TPY12、TNY11、TNY12-IGBT并联组成四象限B相；PMCF1整流模块的输出侧还串接有电流传感器CT(IN)7；所述PMCF2四象限供电电路包括牵引变压器TR-2、预充电接触器AK2、预充电电阻CHR2、主接触器K13、四象限输入电流传感器CT(IN)2、PMCF2整流模块；连接关系如下：所述牵引变压器TR-2由电网供电，预充电接触器AK2与预充电电阻CHR2串联后与主接触器K13并联，然后接至牵引变压器TR-2输出端，四象限输入电流传感器CT(IN)2接至牵引变压器TR-2输出端；所述PMCF2整流模块为双管IGBT并联的四象限整流器，结构与PMCF1整流模块相同；PMCF2整流模块的输出侧还串接有电流传感器CT(IN)8；所述主发电机供电电路由发电机、主发供电三级接触器 KM11、三相电流传感器TA11、TA12、TA13构成；发电机通过主发供电三级接触器KM11控制是否工作，且三相输出线路各连接一个电流传感器，分别为TA11、TA12、TA13；输出电压接入PMCF1整流模块与PMCF2整流模块；所述中间电路包括中间电容FC1、中间慢放电阻DR1、指示灯电路、电压传感器PT1与接地检测回路，所述中间电容FC1、中间慢放电阻DR1与电压传感器PT1均接至PMCF1整流模块与PMCF2整流模块的直流输出电路上，所述指示灯电路为电阻HR1与指示灯HD1串联，然后接至PMCF1整流模块与PMCF2整流模块的直流输出电路上；所述接地检测回路包括分压电阻GRe1、GRe2、防干扰滤波电容GC1及电压传感器PT2，分压电阻GRe1、GRe2串联接入直流输出电路上，防干扰滤波电容GC1及电压传感器PT2并联至GRe2两端并接地；所述牵引逆变斩波电路包括多个三相逆变加斩波INV，编号为INV1～INVn，且结构相同，三相逆变加斩波INV1的结构为：变流器中的三相逆变母排将TPU1、TNU1连接成逆变器U相，将TPVU1、TNV1连接成逆变器V相，将TPW1、TNW1连接成逆变器W相；通过变流器中的过压斩波母排将OVT1、OVT2连接斩波相，U相逆变电路上连接有U相电流传感器CTU1，W相逆变电路上连接有W相电流传感器CTW1，电路上还串接有斩波电流传感器CTB1与斩波电阻BR1。A main circuit of an internal electric dual-source traction converter, as shown in Figure 1: comprising a PMCF1 four-quadrant power supply circuit, a PMCF2 four-quadrant power supply circuit, a main generator power supply circuit, an intermediate circuit and a traction inverter chopper circuit; PMCF1 four-quadrant power supply circuit includes traction transformer TR-1, pre-charging contactor AK1, pre-charging resistor CHR1, main contactor K11, four-quadrant input current sensor CT(IN)1, internal power supply conversion isolation contactor K12, PMCF1 rectifier The connection relationship of the module is as follows: the traction transformer TR-1 is powered by the power grid, the pre-charging contactor AK1 is connected in series with the pre-charging resistor CHR1 and connected in parallel with the main contactor K11, and then connected to the output terminal of the traction transformer TR-1, and the four-quadrant input The current sensor CT(IN)1 is connected in series with the internal power supply conversion isolation contactor K12 and then connected to the output terminal of the traction transformer TR-1; the PMCF1 rectifier module is a four-quadrant rectifier with two-tube IGBTs connected in parallel, and the structure is: The four-quadrant busbar connects TPX11, TPX12, TNX11, and TNX12-IGBT in parallel to form a four-quadrant phase A, and TPY11, TPY12, TNY11, and TNY12-IGBT in parallel to form a four-quadrant phase B; the output side of the PMCF1 rectifier module is also connected in series with a current sensor CT(IN)7; the PMCF2 four-quadrant power supply circuit includes traction transformer TR-2, pre-charging contactor AK2, pre-charging resistor CHR2, main contactor K13, four-quadrant input current sensor CT(IN)2, PMCF2 rectifier module The connection relationship is as follows: the traction transformer TR-2 is powered by the grid, the pre-charging contactor AK2 is connected in parallel with the main contactor K13 after the pre-charging resistor CHR2 is connected in series, and then connected to the output terminal of the traction transformer TR-2, the four-quadrant input current The sensor CT(IN)2 is connected to the output terminal of the traction transformer TR-2; the PMCF2 rectifier module is a four-quadrant rectifier with two-tube IGBTs connected in parallel, the structure is the same as that of the PMCF1 rectifier module; the output side of the PMCF2 rectifier module is also connected in series with a current sensor CT(IN) 8; the power supply circuit of the main generator is composed of a generator, a three-level contactor KM11 for main power supply, and three-phase current sensors TA11, TA12, and TA13; work, and each of the three-phase output lines is connected to a current sensor, namely TA11, TA12, and TA13; the output voltage is connected to the PMCF1 rectifier module and the PMCF2 rectifier module; the intermediate circuit includes an intermediate capacitor FC1, an intermediate slow discharge resistor DR1, and an indicator light Circuit, voltage sensor PT1 and grounding detection circuit, the intermediate capacitor FC1, the intermediate slow-release resistor DR1 and the voltage sensor PT1 are all connected to the DC output circuits of the PMCF1 rectifier module and the PMCF2 rectifier module, and the indicator lamp circuit is a resistor HR1 and The indicator light HD1 is connected in series, and then connected to the DC output circuit of the PMCF1 rectifier module and the PMCF2 rectifier module; the ground detection circuit includes voltage divider resistors GRe1, GRe2, anti-interference filter capacitor GC1, voltage sensor PT2, voltage divider resistors GRe1, GRe2 Connected in series to the DC output circuit, the anti-interference filter capacitor GC1 and the voltage sensor PT2 are connected in parallel to both ends of GRe2 and grounded; the traction inverter chopper circuit includes multiple three-phase inverter plus chopping INV, numbered INV1～INVn , and the structure is the same, the structure of the three-phase inverter plus chopping INV1 is: the three-phase inverter busbar in the converter connects TPU1 and TNU1 to form the U phase of the inverter, and connects TPVU1 and TNV1 to form the V phase of the inverter. phase, connect TPW1 and TNW1 to the W phase of the inverter; connect OVT1 and OVT2 to the chopper phase through the overvoltage chopper busbar in the converter, and the U phase inverter circuit is connected to the U phase current sensor CTU1, W A W-phase current sensor CTW1 is connected to the phase inverter circuit, and a chopping current sensor CTB1 and a chopping resistor BR1 are connected in series to the circuit.
本实施例采用了优选方案：所述主接触器K11、K12、K13，预充电接触器AK1、AK2及主发电机三极接触器KM11为内电转换相关接触器；所述PMCF1整流模块、PMCF2整流模块、三相逆变斩波INV装配的IGBT、驱动板、配置板、水冷板、电连接器、复合母排的部件，模块的外形、接口及安装尺寸完全相同；三相逆变加斩波INV的三相输出电压接至牵引电机；所述主电路还为辅助变流器与列车供电电路供电，所述辅助变流器及列车供电并接入PMCF1整流模块与PMCF2整流模块的直流电压输出端；所述分压电阻GRe1、GRe2阻值相同；所述三相逆变加斩波INV设有三个，分别为INV1、INV2、INV3，且各自接至对应的牵引电机；所述主电路内的部件均采用适用于高海拔5100m、高电压DC3600V的部件，能够实现高原、高压的运行环境。This embodiment adopts the preferred solution: the main contactors K11, K12, K13, the pre-charging contactors AK1, AK2 and the main generator three-pole contactor KM11 are contactors related to internal power conversion; the PMCF1 rectifier module, PMCF2 Rectifier module, IGBT assembled by three-phase inverter chopper INV, driver board, configuration board, water cooling board, electrical connector, components of composite busbar, the shape, interface and installation dimensions of the modules are exactly the same; three-phase inverter plus chopping The three-phase output voltage of the wave INV is connected to the traction motor; the main circuit is also powered for the auxiliary converter and the train power supply circuit, and the auxiliary converter and the train are powered and connected to the DC voltage of the PMCF1 rectifier module and the PMCF2 rectifier module output terminal; the resistance values of the voltage dividing resistors GRe1 and GRe2 are the same; the three-phase inverter and chopper INV are provided with three, namely INV1, INV2, and INV3, and each is connected to the corresponding traction motor; the main circuit The internal components are all suitable for high altitude 5100m and high voltage DC3600V, which can realize the plateau and high voltage operating environment.
本实施例所提供的牵引变流器主要技术参数如下：The main technical parameters of the traction converter provided in this embodiment are as follows:
用途：牵引货运列车或客运列车；Purpose: Towing freight trains or passenger trains;
轴式：C0-C0；Shaft type: C0-C0;
轴重：25t；Axle load: 25t;
运行模式：电力模式、内燃模式；Operating mode: electric mode, internal combustion mode;
海拔：≤5100m；Altitude: ≤5100m;
采用无二次谐振电路方式。No secondary resonance circuit is adopted.
中间直流环节额定电压：3600V；Intermediate DC link rated voltage: 3600V;
四象限整流单元数量：2；Number of four-quadrant rectifier units: 2;
牵引逆变器数量：3；Number of traction inverters: 3;
额定输出功率：3X1225kW；Rated output power: 3X1225kW;
额定输出电压：3AC 2800V；Rated output voltage: 3AC 2800V;
电力模式下：额定输入电压：AC 1950V，单相四象限整流；In power mode: rated input voltage: AC 1950V, single-phase four-quadrant rectification;
电力模式(货运)≥7200kW；Power mode (cargo) ≥ 7200kW;
电力模式(客运)≥6400kW；Power mode (passenger transport) ≥ 6400kW;
内燃模式下：额定输入电压：3AC 2800V，三相不控整流；In internal combustion mode: rated input voltage: 3AC 2800V, three-phase uncontrolled rectification;
内燃模式(货运)≥2200kW；Internal combustion mode (cargo) ≥ 2200kW;
内燃模式(客运)≥1460kW；Internal combustion mode (passenger transport) ≥ 1460kW;
按照新型内电双源动力牵引变流器主电路方案设计的牵引变流器，整个牵引器装配同种共5个功率模块、通过1个主发三级接触器、3个主接触器整流器、2个预充电接触器不同开关状态组合，实现了接触网供电工况下的四象限整流功能，实现了主发供电工况下三相不控整流功能。PMCF1整流器、PMCF2整流器、牵引逆变+斩波INV1、牵引逆变+斩波INV2及牵引逆变+斩波INV3采用同种功率模块，通过变流器内的整流器母排、逆变母排及斩波母排实现了四象限整流、三相不控整流、牵引逆变及过压抑制斩波功能。牵引变流器母线电压采用DC3600V，各电气部件采用高绝缘，能够适用高海拔5100m运行环境，采用该电压等级，有效减小主回路电流，有利于减小变流器的体积及重量， 以满足内电一体化、轻量化、高密度、高海拔的需求。The traction converter is designed according to the main circuit scheme of the new internal power dual-source power traction converter. The entire tractor is equipped with 5 power modules of the same type, through 1 main generator three-stage contactor, 3 main contactor rectifiers, The combination of different switching states of the two pre-charging contactors realizes the four-quadrant rectification function under the catenary power supply condition, and realizes the three-phase uncontrolled rectification function under the main generator power supply condition. PMCF1 rectifier, PMCF2 rectifier, traction inverter + chopper INV1, traction inverter + chopper INV2 and traction inverter + chopper INV3 use the same power module, through the rectifier busbar, inverter busbar and The chopper busbar realizes the functions of four-quadrant rectification, three-phase uncontrolled rectification, traction inverter and overvoltage suppression chopper. The bus voltage of the traction converter adopts DC3600V, and the electrical components adopt high insulation, which can be applied to the operating environment at a high altitude of 5100m. Adopting this voltage level can effectively reduce the current of the main circuit, which is conducive to reducing the size and weight of the converter, so as to meet the Requirements for internal electrical integration, lightweight, high density, and high altitude.
本实施例的工作原理为：The working principle of this embodiment is:
1)当主电路采用网压供电时，主发供电三级接触器KM11处于断开状态，变压器副边绕组牵引变压器TR-1、牵引变压器TR-2进行电网供电，通过预充电接触器AK1(AK2)和预充电电阻CHR1(CHR2)完成预充电后，主接触器K11、K12或K13闭合，分别给2组四象限整流器PMCF1、PMCF2提供单相交流电，通过两重化控制，实现四象限整流功能，2组四象限采用两重化控制，有效减小纹波电流。1) When the main circuit is powered by grid voltage, the three-level contactor KM11 of the main power supply is in the disconnected state, and the secondary winding of the transformer is powered by the traction transformer TR-1 and the traction transformer TR-2, and the pre-charging contactor AK1 (AK2 ) and the pre-charging resistor CHR1 (CHR2) complete the pre-charging, the main contactor K11, K12 or K13 closes, and provides single-phase AC power to the two groups of four-quadrant rectifiers PMCF1 and PMCF2 respectively, and realizes the four-quadrant rectification function through dual control , 2 groups of four quadrants adopt dual control to effectively reduce the ripple current.
2)当主电路采用柴油机拖动主发电机供电或接触网无法供电时，主发供电三级接触器KM11闭合，接触器K11、K12、K13，预充电接触器AK1、AK2均处于断开状态，通过PMCF1功率模块的2相、PMCF2功率模块的1相反并联在IGBT两端的并联二极管组成双二极管并联的三相不控整流器，借助相同模块实现了内燃供电模式下的三相不控整流功能，同时整车的受电弓处于降弓状态，这样整车就实现了内燃模式供电。2) When the main circuit is powered by a diesel engine driving the main generator or the catenary fails to supply power, the third-level contactor KM11 of the main power supply is closed, the contactors K11, K12, K13, and the pre-charging contactors AK1 and AK2 are all in the disconnected state. Two phases of the PMCF1 power module and one phase of the PMCF2 power module are connected in parallel at both ends of the IGBT to form a two-diode parallel three-phase uncontrolled rectifier. With the help of the same module, the three-phase uncontrolled rectification function under the internal combustion power supply mode is realized. At the same time The pantograph of the whole vehicle is in the state of lowering the bow, so that the whole vehicle realizes the internal combustion mode power supply.
3)在需要实现四象限整流功能时，通过变流器中的四象限母排将TPX11、TPX12、TNX11、TNX12-IGBT并联组成四象限A相，将TPY11、TPY12、TNY11、TNY12-IGBT并联组成四象限B相，这样就完成了双管并联的四象限整流器，如图3所示。3) When the four-quadrant rectification function needs to be realized, TPX11, TPX12, TNX11, TNX12-IGBT are connected in parallel to form a four-quadrant A phase through the four-quadrant busbar in the converter, and TPY11, TPY12, TNY11, TNY12-IGBT are connected in parallel to form a Four-quadrant B-phase, thus completing the four-quadrant rectifier with two tubes connected in parallel, as shown in Fig. 3 .
4)在需要逆变+斩波功能时，通过变流器中的三相逆变母排(只叙述其中一个INV1)将TPU1、TNU1连接成逆变器U相，将TPVU1、TNV1连接成逆变器V相，将TPW1、TNW1连接成逆变器W相；通过变流器中的过压斩波母排将OVT1、OVT2连接斩波相，如图4所示。4) When the inverter + chopping function is required, connect TPU1 and TNU1 to form the U phase of the inverter through the three-phase inverter busbars in the converter (only one INV1 is described), and connect TPVU1 and TNV1 to form the inverter Inverter V phase, connect TPW1 and TNW1 to inverter W phase; connect OVT1 and OVT2 to the chopper phase through the overvoltage chopper busbar in the converter, as shown in Figure 4.
本公开要求保护的范围不限于以上具体实施方式，而且对于本领域技术人员而言，本公开可以有多种变形和更改，凡在本公开的构思与原则之内所作的任何修改、改进和等同替换都应包含在本公开的保护范围之内。The scope of protection claimed by the present disclosure is not limited to the above specific embodiments, and for those skilled in the art, the present disclosure may have various modifications and changes, and any modifications, improvements and equivalents made within the concepts and principles of the present disclosure All substitutions should be included within the protection scope of the present disclosure.

Claims (10)

  1. 一种内电双源牵引变流器主电路，其中，包括PMCF1四象限供电电路、PMCF2四象限供电电路、主发电机供电电路、中间电路及牵引逆变斩波电路；A main circuit of an internal electric dual-source traction converter, including a PMCF1 four-quadrant power supply circuit, a PMCF2 four-quadrant power supply circuit, a main generator power supply circuit, an intermediate circuit and a traction inverter chopper circuit;
    所述PMCF1四象限供电电路包括牵引变压器TR-1、预充电接触器AK1、预充电电阻CHR1、主接触器K11、四象限输入电流传感器CT(IN)1、内电供电转换隔离接触器K12、PMCF1整流模块，连接关系如下：所述牵引变压器TR-1由电网供电，预充电接触器AK1与预充电电阻CHR1串联后与主接触器K11并联，然后接至牵引变压器TR-1输出端，四象限输入电流传感器CT(IN)1与内电供电转换隔离接触器K12串联后接至牵引变压器TR-1输出端；所述PMCF1整流模块为双管IGBT并联的四象限整流器，结构为：变流器中的四象限母排将TPX11、TPX12、TNX11、TNX12-IGBT并联组成四象限A相，TPY11、TPY12、TNY11、TNY12-IGBT并联组成四象限B相；PMCF1整流模块的输出侧还串接有电流传感器CT(IN)7；The PMCF1 four-quadrant power supply circuit includes a traction transformer TR-1, a pre-charging contactor AK1, a pre-charging resistor CHR1, a main contactor K11, a four-quadrant input current sensor CT(IN)1, an internal power supply conversion isolation contactor K12, PMCF1 rectifier module, the connection relationship is as follows: the traction transformer TR-1 is powered by the power grid, the pre-charging contactor AK1 is connected in series with the pre-charging resistor CHR1 and connected in parallel with the main contactor K11, and then connected to the output terminal of the traction transformer TR-1, four The quadrant input current sensor CT(IN)1 is connected in series with the internal power supply conversion isolation contactor K12 and then connected to the output terminal of the traction transformer TR-1; the PMCF1 rectifier module is a four-quadrant rectifier with two-tube IGBTs connected in parallel, and the structure is: The four-quadrant busbar in the device connects TPX11, TPX12, TNX11, and TNX12-IGBT in parallel to form a four-quadrant phase A; TPY11, TPY12, TNY11, and TNY12-IGBT are connected in parallel to form a four-quadrant phase B; Current sensor CT(IN)7;
    所述PMCF2四象限供电电路包括牵引变压器TR-2、预充电接触器AK2、预充电电阻CHR2、主接触器K13、四象限输入电流传感器CT(IN)2、PMCF2整流模块；连接关系如下：所述牵引变压器TR-2由电网供电，预充电接触器AK2与预充电电阻CHR2串联后与主接触器K13并联，然后接至牵引变压器TR-2输出端，四象限输入电流传感器CT(IN)2接至牵引变压器TR-2输出端；所述PMCF2整流模块为双管IGBT并联的四象限整流器，结构与PMCF1整流模块相同；PMCF2整流模块的输出侧还串接有电流传感器CT(IN)8；Described PMCF2 four-quadrant power supply circuit comprises traction transformer TR-2, pre-charging contactor AK2, pre-charging resistance CHR2, main contactor K13, four-quadrant input current sensor CT (IN) 2, PMCF2 rectification module; Connection relation is as follows: The above-mentioned traction transformer TR-2 is powered by the power grid, the pre-charging contactor AK2 is connected in series with the pre-charging resistor CHR2 and connected in parallel with the main contactor K13, and then connected to the output terminal of the traction transformer TR-2, and the four-quadrant input current sensor CT(IN)2 Connected to the output terminal of the traction transformer TR-2; the PMCF2 rectifier module is a four-quadrant rectifier connected in parallel with two-tube IGBTs, and has the same structure as the PMCF1 rectifier module; the output side of the PMCF2 rectifier module is also connected in series with a current sensor CT (IN) 8;
    所述主发电机供电电路由发电机、主发供电三级接触器KM11、三相电流传感器TA11、TA12、TA13构成；发电机通过主发供电三级接触器KM11控制是否工作，且三相输出线路各连接一个电流传感器，分别为TA11、TA12、TA13；输出电压接入PMCF1整流模块与PMCF2整流模块；The power supply circuit of the main generator is composed of a generator, a three-stage contactor KM11 for main power supply, and three-phase current sensors TA11, TA12, and TA13; Each line is connected to a current sensor, respectively TA11, TA12, TA13; the output voltage is connected to the PMCF1 rectifier module and PMCF2 rectifier module;
    所述中间电路包括中间电容FC1、中间慢放电阻DR1、指示灯电路、电压传感器PT1与接地检测回路，所述中间电容FC1、中间慢放电阻DR1与电压传感器PT1均接至PMCF1整流模块与PMCF2整流模块的直流输出电路上，所述指示灯电路为电阻HR1与指示灯HD1串联，然后接至PMCF1整流模块与PMCF2整流模块的直流输出电路上；所述接地检测回路包括分压电阻GRe1、GRe2、防干扰滤波电容GC1及电压传感器PT2，分压电阻GRe1、GRe2串联接入直流输出电路上，防干扰滤波电容GC1及电压传感器PT2并联至GRe2两端并接地；The intermediate circuit includes an intermediate capacitor FC1, an intermediate slow discharge resistor DR1, an indicator light circuit, a voltage sensor PT1 and a grounding detection circuit, and the intermediate capacitor FC1, the intermediate slow discharge resistor DR1 and the voltage sensor PT1 are all connected to the PMCF1 rectifier module and PMCF2 On the DC output circuit of the rectifier module, the indicator light circuit is connected in series with the resistor HR1 and the indicator HD1, and then connected to the DC output circuits of the PMCF1 rectifier module and the PMCF2 rectifier module; the ground detection circuit includes voltage dividing resistors GRe1, GRe2 , The anti-interference filter capacitor GC1 and the voltage sensor PT2, the voltage dividing resistors GRe1 and GRe2 are connected in series to the DC output circuit, the anti-interference filter capacitor GC1 and the voltage sensor PT2 are connected in parallel to both ends of GRe2 and grounded;
    所述牵引逆变斩波电路包括多个三相逆变加斩波INV，编号为INV1～INVn，且结构相同，三相逆变加斩波INV1的结构为：变流器中的三相逆变母排将TPU1、TNU1连接成逆变器U相，将TPVU1、TNV1连接成逆变器V相，将TPW1、TNW1连接成逆变器W相；通过变流器中的过压斩波母排将OVT1、OVT2连接斩波相，U相逆变电路上连接有U相电流传感器CTU1，W相逆变电路上连接有W相电流传感器CTW1，电路上还串接有斩波电流传感器CTB1与斩波电阻BR1。The traction inverter chopper circuit includes a plurality of three-phase inverter plus chopping INV, numbers are INV1 ~ INVn, and the structure is the same, the structure of the three-phase inverter plus chopping INV1 is: the three-phase inverter in the converter Connect TPU1 and TNU1 to the U phase of the inverter, connect TPVU1 and TNV1 to the V phase of the inverter, and connect TPW1 and TNW1 to the W phase of the inverter; through the overvoltage chopper bus in the converter The row connects OVT1 and OVT2 to the chopping phase, the U-phase inverter circuit is connected to the U-phase current sensor CTU1, the W-phase inverter circuit is connected to the W-phase current sensor CTW1, and the circuit is also connected in series with the chopping current sensor CTB1 and Chopping resistor BR1.
  2. 根据权利要求1所述的一种内电双源牵引变流器主电路，其中，所述主接触器K11、K12、K13，预充电接触器AK1、AK2及主发电机三极接触器KM11为内电转换相关接触器。The main circuit of a dual-source traction converter with internal power according to claim 1, wherein the main contactors K11, K12, K13, the pre-charging contactors AK1, AK2 and the main generator three-pole contactor KM11 are Contactors related to internal power conversion.
  3. 根据权利要求1所述的一种内电双源牵引变流器主电路，其中，所述PMCF1整流模块与PMCF2整流模块结构相同，模块内装配的IGBT均为相同器件，且每个支路的IGBT桥臂均配有相同的驱动板和配置板。The main circuit of a kind of internal power dual-source traction converter according to claim 1, wherein the PMCF1 rectifier module has the same structure as the PMCF2 rectifier module, and the IGBTs assembled in the modules are all the same devices, and each branch IGBT bridge arms are equipped with the same driver board and configuration board.
  4. 根据权利要求1所述的一种内电双源牵引变流器主电路，其中，所述牵引逆变斩波电路内的三相逆变加斩波INV结构全部相同，且采用相同的IGBT器件，每个支路的IGBT桥臂均配有相同的驱动板和配置板。The main circuit of an internal power dual-source traction converter according to claim 1, wherein the three-phase inverter plus chopping INV structures in the traction inverter chopper circuit are all the same, and use the same IGBT device , the IGBT bridge arm of each branch is equipped with the same driver board and configuration board.
  5. 根据权利要求1所述的一种内电双源牵引变流器主电路，其中，所述PMCF1整流模块、PMCF2整流模块、三相逆变斩波INV装配的IGBT、驱动板、配置板、水冷板、电连接器、复合母排的部件，模块的外形、接口及 安装尺寸完全相同。The main circuit of a dual-source traction converter with internal power according to claim 1, wherein the PMCF1 rectifier module, PMCF2 rectifier module, three-phase inverter chopper INV assembled IGBT, drive board, configuration board, water cooling Boards, electrical connectors, components of composite busbars, and modules have exactly the same shape, interface and installation dimensions.
  6. 根据权利要求1所述的一种内电双源牵引变流器主电路，其中，三相逆变加斩波INV的三相输出电压接至牵引电机。The main circuit of an internal power dual-source traction converter according to claim 1, wherein the three-phase output voltage of the three-phase inverter plus chopper INV is connected to the traction motor.
  7. 根据权利要求1所述的一种内电双源牵引变流器主电路，其中，所述主电路还为辅助变流器与列车供电电路供电，所述辅助变流器及列车供电并接入PMCF1整流模块与PMCF2整流模块的直流电压输出端。The main circuit of an internal power dual-source traction converter according to claim 1, wherein the main circuit also supplies power for the auxiliary converter and the train power supply circuit, and the auxiliary converter and the train supply power and are connected to DC voltage output terminals of the PMCF1 rectification module and the PMCF2 rectification module.
  8. 根据权利要求1所述的一种内电双源牵引变流器主电路，其中，所述分压电阻GRe1、GRe2阻值相同。The main circuit of an internal power dual-source traction converter according to claim 1, wherein the voltage dividing resistors GRe1 and GRe2 have the same resistance value.
  9. 根据权利要求1所述的一种内电双源牵引变流器主电路，其中，所述三相逆变加斩波INV设有三个，分别为INV1、INV2、INV3，且各自接至对应的牵引电机。According to claim 1, a main circuit of an internal power dual-source traction converter, wherein there are three three-phase inverter plus chopper INVs, namely INV1, INV2, and INV3, and each of them is connected to a corresponding traction motor.
  10. 根据权利要求1所述的一种内电双源牵引变流器主电路，其中，所述主电路内的部件均采用适配置为高海拔5100m、高电压DC3600V的部件，能够实现高原高压的运行环境。The main circuit of an internal power dual-source traction converter according to claim 1, wherein the components in the main circuit are adapted to be configured at a high altitude of 5100m and a high voltage DC3600V, which can realize high-altitude high-voltage operation environment.
PCT/CN2022/139087 2021-12-30 2022-12-14 Main circuit of diesel-electric dual-powered traction converter WO2023125018A1 (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203482100U (en) * 2013-06-24 2014-03-12 北京千驷驭电气有限公司 Hybrid-power motor-train-unit traction converter suitable for multiple power-supply modes
CN108696149A (en) * 2018-05-25 2018-10-23 中车青岛四方车辆研究所有限公司 Traction convertor and its control, troubleshooting and phase-shifting carrier wave method
US20200122582A1 (en) * 2018-10-18 2020-04-23 Ford Global Technologies, Llc Integrated precharging and discharging for electric vehicle drive system capacitors
CN111082672A (en) * 2018-10-19 2020-04-28 株洲中车时代电气股份有限公司 Traction converter circuit
CN112737356A (en) * 2020-12-25 2021-04-30 中车永济电机有限公司 High-power permanent-magnet direct-drive freight locomotive traction converter
CN112737354A (en) * 2020-12-22 2021-04-30 中车永济电机有限公司 High-power permanent-magnet direct-drive freight locomotive traction converter
CN114244088A (en) * 2021-12-30 2022-03-25 中车永济电机有限公司 Main circuit of internal electric double-source traction converter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103481787B (en) * 2013-06-24 2015-12-23 长春轨道客车股份有限公司 The motor train unit traction system of contact system, power bag and closed-center system hybrid power supply
CN112953256A (en) * 2019-12-11 2021-06-11 株洲中车时代电气股份有限公司 Multi-system converter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203482100U (en) * 2013-06-24 2014-03-12 北京千驷驭电气有限公司 Hybrid-power motor-train-unit traction converter suitable for multiple power-supply modes
CN108696149A (en) * 2018-05-25 2018-10-23 中车青岛四方车辆研究所有限公司 Traction convertor and its control, troubleshooting and phase-shifting carrier wave method
US20200122582A1 (en) * 2018-10-18 2020-04-23 Ford Global Technologies, Llc Integrated precharging and discharging for electric vehicle drive system capacitors
CN111082672A (en) * 2018-10-19 2020-04-28 株洲中车时代电气股份有限公司 Traction converter circuit
CN112737354A (en) * 2020-12-22 2021-04-30 中车永济电机有限公司 High-power permanent-magnet direct-drive freight locomotive traction converter
CN112737356A (en) * 2020-12-25 2021-04-30 中车永济电机有限公司 High-power permanent-magnet direct-drive freight locomotive traction converter
CN114244088A (en) * 2021-12-30 2022-03-25 中车永济电机有限公司 Main circuit of internal electric double-source traction converter

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