WO2018040289A1 - 牵引功率模块 - Google Patents

牵引功率模块 Download PDF

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Publication number
WO2018040289A1
WO2018040289A1 PCT/CN2016/105635 CN2016105635W WO2018040289A1 WO 2018040289 A1 WO2018040289 A1 WO 2018040289A1 CN 2016105635 W CN2016105635 W CN 2016105635W WO 2018040289 A1 WO2018040289 A1 WO 2018040289A1
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WIPO (PCT)
Prior art keywords
power module
mounting surface
traction power
electrically connected
composite busbar
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PCT/CN2016/105635
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English (en)
French (fr)
Inventor
车向中
石运卓
李岩
王智鹏
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中车大连电力牵引研发中心有限公司
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Publication of WO2018040289A1 publication Critical patent/WO2018040289A1/zh

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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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power 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
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
    • H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
    • H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
    • H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • 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
    • H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections

Definitions

  • the invention relates to locomotive traction technology, in particular to a traction power module.
  • the power centralized traction converter system has developed rapidly. It integrates the traction control system, auxiliary power supply system and charger power supply system into one system to form a cabinet-system product model.
  • the power module of the traction control system is the most important component of the power centralized traction converter system, and its integration directly affects the reliability of the entire power centralized traction converter system.
  • the power module of the traction control system in the prior art that is, the traction power module of the converter
  • is mostly a semi-modular design that is, the composition of the traction power module mainly includes an IGBT, a heat sink, a surge capacitor and a composite busbar. If the supporting capacitors are not integrated together, the supporting capacitors need to be connected to the above traction power module.
  • the invention provides a traction power module to overcome the technical problem of low performance and low reliability of the traction power module caused by the low integration of the semi-modular traction power module in the prior art.
  • the invention provides a traction power module, comprising:
  • each of the IGBTs being electrically connected to an input interface and an output interface of the inverter composite busbar;
  • each of the surge capacitors being electrically connected to the input interface of the inverter composite busbar;
  • one end of the copper row is electrically connected to the output interface of the inverter composite busbar, and the other end of the copper bar is electrically connected to the terminal block;
  • the supporting capacitors are electrically connected to the DC composite busbar, and the DC composite busbars are further electrically connected to the DC input terminals of the inverter composite busbars;
  • the DC composite busbar is used for accessing direct current from a front end loop of the converter system, so that the supporting capacitor is charged;
  • the IGBT is configured to convert the direct current into alternating current, and the alternating current sequentially passes through the copper row and the terminal block connected to the output interface, and the cable connected to the terminal block Output to the traction motor.
  • the traction power module as described above further includes: a discharge resistor electrically connected to an input interface of the inverter composite bus.
  • the traction power module as described above further includes: a current sensor, a voltage sensor, and a control line connector;
  • the copper row passes through the current sensor to cause the current sensor to detect an alternating current output by the inverter composite busbar;
  • the control line of the current sensor and the control line of the voltage sensor are electrically connected to the control line connector, and a positive interface of the voltage sensor is connected to a positive interface of the DC composite busbar, and the voltage sensor is The negative interface is connected to a negative interface of the DC composite busbar, and the voltage sensor is configured to detect a DC voltage at the input end of the DC composite busbar.
  • the heat sink is an aluminum profile heat sink or a heat pipe heat sink.
  • the traction power module as described above further includes a metal frame
  • the terminal block and the control wire connector are connected to the first mounting surface of the metal frame, and the first mounting surface of the metal frame and the substrate of the heat sink are oppositely disposed;
  • the second mounting surface and the third mounting surface are respectively connected to the substrate of the heat sink, and the second mounting surface and the third mounting surface of the metal frame are oppositely disposed;
  • the current sensor is connected to the fourth mounting surface and the fifth mounting surface of the metal frame, and the fourth mounting surface and the fifth mounting surface are on the second mounting surface and the third mounting surface
  • the voltage sensor is coupled to the first mounting surface of the metal frame.
  • the traction power module as described above further includes: a driving board push-pull module, the driving board Push-pull module is attached to the second mounting surface of the metal frame;
  • the driving board push-pull module includes a slide baffle, an IGBT driving board and a slide rail, wherein the driving board is disposed on the slide rail, and the slide rail baffle is disposed at one end of the slide rail to replace the IGBT driving board At the time, the slide baffle is removed, and the IGBT drive plate is extracted from the slide.
  • the discharge resistor is a thin film ceramic resistor.
  • the number of the IGBTs is eight.
  • the traction power module as described above further includes: two push-pull handles, the two push-pull handles being symmetrically connected to the substrate of the heat sink.
  • the traction power module of the present invention comprises a plurality of IGBTs, each IGBT is electrically connected to an input interface and an output interface of the inverter composite busbar, and a plurality of surge capacitors, each surge capacitor and an input interface of the inverter composite busbar are electrically connected;
  • the first end of the copper row and the copper row are electrically connected with the output interface of the inverter composite busbar, and the second end of the copper bar is electrically connected with the terminal block;
  • the plurality of supporting capacitors, the supporting capacitor are electrically connected with the DC composite busbar, and the DC is connected.
  • the composite busbar is also electrically connected with the DC input end of the inverter composite busbar, effectively integrating the supporting capacitor into the interior of the power module, realizing the modular design of the traction power module, and the high integration of the traction power module makes the inverter output The stray inductance of the loop is reduced, ensuring the performance and reliability of the traction power module.
  • FIG. 1 is a schematic structural diagram 1 of a traction power module according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram 2 of a traction power module according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram 3 of a traction power module according to an embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram 1 of a traction power module according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram
  • FIG. 3 is a schematic structural diagram 3 of a traction power module according to an embodiment of the present invention.
  • the traction power module of the embodiment of the present invention includes: a plurality of IGBTs 101, each of which is electrically connected to an input interface and an output interface of the inverter composite busbar 102;
  • each of the surge capacitors 103 and the input interface of the inverter composite busbar 102 are electrically connected;
  • the copper row 104 one end of the copper row 104 is electrically connected to the output interface of the inverter composite busbar 102, and the other end of the copper row 104 is electrically connected to the terminal block 105;
  • the plurality of supporting capacitors 106, the supporting capacitors 106 are electrically connected to the DC composite busbar 107, and the DC composite busbar 107 is also electrically connected to the DC input terminal of the inverter composite busbar 102;
  • the DC composite busbar 107 is used for direct current access from the front end loop of the converter system, so that the supporting capacitor 106 is charged;
  • the IGBT is used for converting direct current into alternating current, and the alternating current is sequentially connected to the copper row 104 and the terminal block 105 connected to the output interface electrically connected to the IGBT 101 and the inverter composite busbar 102, and the cable is connected to the terminal block 105. Output to the traction motor.
  • the working process of the traction power module of the embodiment is: the DC network voltage from the front end loop of the converter system is connected to the DC input end of the DC composite busbar 107, so that the DC composite busbar 107 can be other power devices or The electrical device provides direct current.
  • the supporting capacitor 106 connected to the DC composite busbar 107 is charged, and the supporting capacitor 106 is used for stabilizing the DC network voltage, performing reactive power compensation for the traction control system, and compensating for the turn-on instantaneous voltage of the IGBT 101.
  • the IGBT 101 and the surge capacitor 103 electrically connected to the input interface of the inverter composite busbar 102 are connected to the DC network voltage, and the IGBT 101 is connected.
  • the surge capacitor 103 absorbs the tip voltage caused by the impurity inductance of the IGBT 101 when it is turned off, and protects the IGBT 101. .
  • the IGBT 101 outputs the output interface of the inverter composite busbar 102 to the copper bus 104, and then outputs the cable connected to the terminal block 105 to the traction motor.
  • the traction power module of the embodiment adopts eight double-tube IGBT packages, and the traction power module is simultaneously applied to the control of two traction motors and the requirements of the two-way brake chopper loop through program control, that is, four IGBTs. Control a motor to achieve a traction-based power mode based on the axis control
  • program control that is, four IGBTs.
  • the supporting capacitor 106 is connected to the inverter output device IGBT101 and the surge capacitor 103 through the DC composite busbar 107, and is disposed inside the traction power module to become a part of the traction power module, which greatly reduces the spur of the inverter output circuit. Inductance values and make the entire traction power module design more compact.
  • the terminal block 105 is used as the output interface of the traction power module of the present embodiment.
  • the cable or other conductive transmission device can be directly connected to the output, and the AC cable or other conductive transmission device is output from the traction power module. Any other form of transfer in the traction converter cabinet makes the traction power modular design feasible.
  • the traction power module of the embodiment includes a plurality of IGBTs, and each IGBT is electrically connected to an input interface and an output interface of the inverter composite busbar, and a plurality of surge capacitors, each surge capacitor is electrically connected to an input interface of the inverter composite busbar.
  • One end of the copper row and the copper row is electrically connected with the output interface of the inverter composite busbar, and the other end of the copper bar is electrically connected with the terminal block; the plurality of supporting capacitors, the supporting capacitor and the DC composite busbar are electrically connected, and the DC composite mother
  • the row is electrically connected to the DC input end of the inverter composite busbar, effectively integrating the supporting capacitor into the interior of the power module, realizing the modular design of the traction power module, and the high integration of the traction power module makes the inverter output loop The stray inductance value is reduced to ensure the performance and reliability of the traction power module.
  • the present embodiment further improves the traction power module based on the previous embodiment.
  • the traction power module of the embodiment further includes a discharge resistor 108, a current sensor 109, and a voltage sensor. 110 and control line connector 111;
  • the discharge resistor 108 is electrically connected to the input interface of the inverter composite busbar 102; the copper busbar 104 passes through the current sensor 109, so that the current sensor 109 detects the alternating current output by the inverter composite busbar 102;
  • the control line of the current sensor 109 and the control line of the voltage sensor 110 are electrically connected to the control line connector 111.
  • the positive interface of the voltage sensor 110 and the positive interface of the DC composite busbar 107 are connected, and the negative interface of the voltage sensor 110 and the DC composite mother
  • the negative interface of row 107 is connected, and voltage sensor 110 is used to detect the DC voltage at the input of DC composite busbar 107.
  • the discharge resistor 108 discharges the support capacitor 106 when the traction power module stops operating, so that the entire traction power module is in a safe state without voltage.
  • the discharge resistor in this embodiment uses a thin film ceramic resistor.
  • the traction power module detects the AC current output by the inverter composite busbar through the current sensor, and the voltage sensing detects the DC voltage of the DC composite busbar input terminal, which can conveniently monitor the working condition of the traction power module.
  • control lines connected to the traction power module in the variable flow traction cabinet can be directly inserted and removed through the control line connector 111, which is very convenient for assembly and maintenance of the traction power module.
  • the traction power module of the present implementation further includes: a driving board push-pull module 112.
  • the driving board push-pull module includes a slide rail baffle, an IGBT driving board and a slide rail, and the driving board is disposed on the slide rail and slides.
  • the baffle plate is disposed at one end of the slide.
  • the driving board needs to be replaced, only the glide baffle plate needs to be removed, so that the driving board can be conveniently extracted from the chute without removing the mounting screws of the driving board.
  • the traction power module is installed in a small space.
  • the drive plate can also be easily maintained during the cabin.
  • the device is required to dissipate heat.
  • the traction power module in this embodiment further includes: a heat sink 113, an IGBT 101, and a substrate of the discharge resistor 108 and the heat sink 113. 118 connections.
  • the heat sink 113 is an aluminum profile heat sink or a heat pipe heat sink.
  • the traction power module of the embodiment further includes: The frame 114; the terminal block 105 and the control wire connector 111 are connected to the first mounting surface of the metal frame 114, the first mounting surface 115 of the metal frame 114 and the substrate 118 of the heat sink 113 are oppositely disposed; the second of the metal frame 114 The mounting surface and the third mounting surface are respectively connected to the substrate 118 of the heat sink 113, and the second mounting surface of the metal frame 114 and the third mounting surface are oppositely disposed;
  • the current sensor 109 is connected to the fourth mounting surface and the fifth mounting surface of the metal frame 114, and the fourth mounting surface and the fifth mounting surface are between the second mounting surface and the third mounting surface; the voltage sensor 110 and the metal frame 114 The first mounting surface 115 is docked; the driving plate push-pull module 112 is attached to the second mounting surface of the metal frame 114.
  • the metal frame 114 is a hollow frame structure having five mounting faces, A mounting surface 115 is disposed opposite to the substrate 118 of the heat sink 113.
  • the first mounting surface 115 is located at the outermost side of the traction power module, and one side of the first mounting surface 115 is connected with the terminal block 105 and the control line connector 111.
  • a voltage sensor 110 is connected to the other side of a mounting surface.
  • the second mounting surface and the connection position with the substrate 118 are provided with a first flange 116.
  • the second mounting surface is screwed to the substrate 118 of the heat sink 113 through the first flange 116, and the third mounting surface is connected to the substrate 118.
  • a second flange (not shown) is disposed at the third mounting surface, and the third mounting surface is screwed to the base plate 118 of the heat sink 113 by a second flange.
  • the traction power module of the present embodiment further includes: two push-pull handles 117, and the two push-pull handles 117 are symmetrically connected to the heat sink in order to conveniently pull the traction power module into or out of the traction converter cabinet. 113 on the substrate 118.
  • the traction power module when the traction power module needs to be placed in the traction converter cabinet, the traction power module is moved into the traction converter cabinet through the two push-pull handles 117, and when the traction power module needs to be removed from the traction converter cabinet The traction power module is moved away from the traction converter cabinet by two push-pull handles 117.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

一种牵引功率模块，包括多个IGBT（101），各IGBT（101）与逆变复合母排（102）的输入接口和输出接口电连接；多个突波电容（103），各突波电容（103）与逆变复合母排（102）的输入接口电连接；铜排（104），铜排（104）的一端与逆变复合母排（102）的输出接口电连接，铜排（104）的另一端和接线端子排（105）电连接；多个支撑电容（106），支撑电容（106）与直流复合母排（107）电连接，直流复合母排（107）还与逆变复合母排（102）的直流输入端电连接。该牵引功率模块有效地将支撑电容（106）集成到功率模块的内部，实现了牵引功率模块的模块化设计，牵引功率模块的高集成度使得逆变输出回路的杂散电感值降低，保证了牵引功率模块的性能和可靠性。

Description

牵引功率模块 技术领域
本发明涉及机车牵引技术，尤其涉及一种牵引功率模块。
背景技术
近几年来动力集中式牵引变流***飞速发展，其将牵引控制***、辅助电源***、充电机电源***集成到一个***之中，形成一柜体一***的产品模式。牵引控制***的功率模块作为动力集中式牵引变流***中最重要的组成部分，它的集成度直接影响到整个动力集中式牵引变流***的可靠性。
现有技术中的牵引控制***的功率模块，也就是变流器的牵引功率模块，多数为半模块化设计，即牵引功率模块的组成主要包括IGBT、散热器、突波电容及复合母排，没有将支撑电容集成到一起，需要另将支撑电容与上述牵引功率模块连接。将上述半模块化的牵引功率模块与支撑电容连接起来的途径有两种，一种通过复合母排连接，另一种通过铜排连接，上述两种连接方式均会增加逆变回路的杂散电感，逆变回路过大的杂散电感直接影响整个牵引功率模块的性能和可靠性。
发明内容
本发明提供一种牵引功率模块，以克服现有技术中半模块化的牵引功率模块集成化低造成的牵引功率模块的性能和可靠性低的技术问题。
本发明提供一种牵引功率模块，包括：
多个IGBT，各所述IGBT与逆变复合母排的输入接口和输出接口电连接；
多个突波电容，各所述突波电容与所述逆变复合母排的所述输入接口电连接；
铜排，所述铜排的一端与所述逆变复合母排的所述输出接口电连接，所述铜排的另一端和接线端子排电连接；
多个支撑电容，所述支撑电容与直流复合母排电连接，所述直流复合母排还与逆变复合母排的直流输入端电连接；
所述直流复合母排，用于来自变流***的前端回路的直流电的接入，使得所述支撑电容得以充电；
所述IGBT，用于将所述直流电转换成交流电，所述交流电依次通过与所述输出接口连接的所述铜排、所述接线端子排，经把接在所述接线端子排上的线缆输出至牵引电机。
如上所述的牵引功率模块，还包括：放电电阻，所述放电电阻与所述逆变复合母排的输入接口电连接。
如上所述的牵引功率模块，还包括：电流传感器、电压传感器和控制线接插件；
所述铜排穿过所述电流传感器，以使所述电流传感器检测所述逆变复合母排输出的交流电流；
所述电流传感器的控制线和所述电压传感器的控制线均与所述控制线接插件电连接，所述电压传感器的正接口和所述直流复合母排的正接口连接，所述电压传感器的负接口和所述直流复合母排的负接口连接，所述电压传感器用于检测所述直流复合母排输入端的直流电压。
如上所述的牵引功率模块，还包括：散热器，所述IGBT和所述放电电阻与所述散热器的基板连接。
如上所述的牵引功率模块，所述散热器为铝制型材散热器或热管散热器。
如上所述的牵引功率模块，还包括金属框架；
所述接线端子排和所述控制线接插件把接在所述金属框架的第一安装面，所述金属框架的第一安装面和所述散热器的基板相对设置；所述金属框架的第二安装面和第三安装面分别与所述散热器的基板连接，所述金属框架的第二安装面和第三安装面相对设置；
所述电流传感器与所述金属框架的第四安装面和第五安装面把接，所述第四安装面和所述第五安装面在所述第二安装面和所述第三安装面之间；所述电压传感器与所述金属框架的所述第一安装面把接。
如上所述的牵引功率模块，还包括：驱动板推拉模块，所述驱动板 推拉模块把接在所述金属框架的第二安装面上；
所述驱动板推拉模块包括滑道挡板、IGBT驱动板和滑道，所述驱动板设置在所述滑道上，所述滑道挡板设置在所述滑道的一端，在更换IGBT驱动板时，拆下所述滑道挡板，从所述滑道内抽出所述IGBT驱动板。
如上所述的牵引功率模块，所述放电电阻为薄膜陶瓷电阻。
如上所述的牵引功率模块，所述IGBT的个数为8个。
如上所述的牵引功率模块，还包括：两个推拉把手，所述两个推拉把手对称连接在所述散热器的基板上。
本发明的牵引功率模块包括多个IGBT，各IGBT与逆变复合母排的输入接口和输出接口电连接，多个突波电容，各突波电容和逆变复合母排的输入接口电连接；铜排，铜排的第一端与逆变复合母排的输出接口电连接，铜排的第二端和接线端子排电连接；多个支撑电容，支撑电容与直流复合母排电连接，直流复合母排还与逆变复合母排的直流输入端电连接，有效的将支撑电容集成到功率模块的内部，实现了牵引功率模块的模块化设计，牵引功率模块的高集成度使得逆变输出回路的杂散电感值降低，保证了牵引功率模块的性能和可靠性。
附图说明
图1为本发明实施例提供的牵引功率模块的结构示意图一；
图2为本发明实施例提供的牵引功率模块的结构示意图二；
图3为本发明实施例提供的牵引功率模块的结构示意图三。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
图1为本发明实施例提供的牵引功率模块的结构示意图一；图2为本 发明实施例提供的牵引功率模块的结构示意图二；图3为本发明实施例提供的牵引功率模块的结构示意图三。
参见图1-图3，本发明实施例的牵引功率模块包括：多个IGBT101，各IGBT101与逆变复合母排102的输入接口和输出接口电连接；
多个突波电容103，各突波电容103和逆变复合母排102的输入接口电连接；
铜排104，铜排104的一端与逆变复合母排102的输出接口电连接，铜排104的另一端和接线端子排105电连接；
多个支撑电容106，支撑电容106与直流复合母排107电连接，直流复合母排107还与逆变复合母排102的直流输入端电连接；
直流复合母排107，用于来自变流***的前端回路的直流电的接入，使得支撑电容106得以充电；
IGBT，用于将直流电转换成交流电，交流电依次通过与IGBT101与逆变复合母排102电连接的输出接口连接的铜排104、接线端子排105，经把接在接线端子排105上的线缆输出至牵引电机。
具体地，本实施例的牵引功率模块的工作过程为：来自变流***前端回路的直流网压接入到直流复合母排107的直流输入端，使得直流复合母排107可以为其它功率器件或电器件提供直流电。与直流复合母排107连接的支撑电容106得以充电，支撑电容106用于稳定直流网压、对牵引控制***进行无功补偿以及对IGBT101的开通瞬时电压进行补偿。同时，由于逆变复合母排102的直流输入端与直流复合母排107电连接，使得与逆变复合母排102的输入接口电连接的IGBT101和突波电容103与直流网压接通，IGBT101通过驱动板对其门极的逻辑控制，将直流电转化成交流电，实现三相交流输出及制动斩波，突波电容103吸收IGBT101关断时由于杂相电感引起的尖端电压，对IGBT101进行保护。IGBT101将直流电转化成交流电后，经逆变复合母排102的输出接口输出至铜排104，然后经把接在接线端子排105上的线缆输出至牵引电机。
可选的，本实施例的牵引功率模块采用8个双管IGBT封装，通过程序控制使得牵引功率模块同时应用于2台牵引电机的控制及两路制动斩波回路的要求，即4个IGBT控制一台电机，实现了基于轴控的牵引功率模 块的模块化设计。
其中，支撑电容106通过直流复合母排107与逆变输出器件IGBT101和突波电容103连接起来，设置在牵引功率模块的内部，成为牵引功率模块的一部分，大大降低了逆变输出回路的杂散电感值，并使整个牵引功率模块设计的更加紧凑。
接线端子排105作为本实施例的牵引功率模块的输出接口，在使用时，可直接将线缆或者其他导电传输设备接在上面，将交流电线缆或者其他导电传输设备从牵引功率模块输出，无需在牵引变流柜内进行其他任何形式的转接，使牵引功率模块化设计可行。
本实施例的牵引功率模块包括多个IGBT，各IGBT与逆变复合母排的输入接口和输出接口电连接，多个突波电容，各突波电容与逆变复合母排的输入接口电连接；铜排，铜排的一端与逆变复合母排的输出接口电连接，铜排的另一端和接线端子排电连接；多个支撑电容，支撑电容与直流复合母排电连接，直流复合母排还与逆变复合母排的直流输入端电连接，有效的将支撑电容集成到功率模块的内部，实现了牵引功率模块的模块化设计，牵引功率模块的高集成度使得逆变输出回路的杂散电感值降低，保证了牵引功率模块的性能和可靠性。
为了进一步提高牵引功率模块的集成度,本实施例在上一实施例的基础上对牵引功率模块作了进一步的改进，本实施例的牵引功率模块还包括放电电阻108，电流传感器109、电压传感器110和控制线接插件111；
放电电阻108与逆变复合母排102的输入接口电连接；铜排104穿过电流传感器109，以使电流传感器109检测逆变复合母排102输出的交流电流；
电流传感器109的控制线和电压传感器110的控制线均与控制线接插件111电连接，电压传感器110的正接口和直流复合母排107的正接口连接，电压传感器110的负接口和直流复合母排107的负接口连接，电压传感器110用于检测直流复合母排107输入端的直流电压。
具体地，放电电阻108在牵引功率模块停止工作时，为支撑电容106放电，使得整个牵引功率模块处于无电压的安全状态。可选的，本实施中的放电电阻采用薄膜陶瓷电阻。
牵引功率模块通过电流传感器检测逆变复合母排输出的交流电流，电压传感检测直流复合母排输入端的直流电压，可以方便的监控牵引功率模块的工作情况。
另外，变流牵引柜内所有与牵引功率模块连接的控制线，均可以通过控制线接插件111实现直接插拔拆卸，对于牵引功率模块的装配与维护非常方便。
为了方便的对IGBT驱动板进行维护，本实施的牵引功率模块还包括：驱动板推拉模块112，驱动板推拉模块包括滑道挡板、IGBT驱动板和滑道，驱动板设置在滑道上，滑道挡板设置在滑道的一端，在更换IGBT驱动板时，拆下滑道挡板，从滑道内抽出IGBT驱动板。
具体地，当驱动板需要更换时，只需要拆下滑道挡板，便可以方便的将驱动板从滑道内抽出，无需再拆卸驱动板的安装螺钉，此时，当牵引功率模块安装在空间狭小的舱内时，也可以非常方便的对驱动板进行维护。
车辆在运行的过程中，需要对其工作的器件进行散热，为了对牵引功率模块散热，本实施例中的牵引功率模块，还包括：散热器113，IGBT101和放电电阻108与散热器113的基板118连接。
可选的，散热器113为铝制型材散热器或热管散热器。
上述实施例中的牵引功率模块的各器件通过复合母排集成在一起，需要特定的结构进行辅助固定，因此，在上述实施例的基础上，本实施例的牵引功率模块还包括：还包括金属框架114；接线端子排105和控制线接插件111把接在金属框架114的第一安装面，金属框架114的第一安装面115和散热器113的基板118相对设置；金属框架114的第二安装面和第三安装面分别与散热器113的基板118连接，金属框架114的第二安装面和第三安装面相对设置；
电流传感器109与金属框架114的第四安装面和第五安装面把接，第四安装面和第五安装面在第二安装面和第三安装面之间；电压传感器110与金属框架114的第一安装面115把接；驱动板推拉模块112把接在金属框架114的第二安装面上。
具体地，金属框架114为一个中空的框架结构，具有五个安装面，第 一安装面115与散热器113的基板118相对设置，第一安装面115位于牵引功率模块的最外侧，第一安装面115的一面上把接有接线端子排105和控制线接插件111，第一安装面的另一面把接有电压传感器110。第二安装面和与基板118连接位置处设置有第一翻边116，第二安装面通过第一翻边116与散热器113的基板118通过螺钉连接，第三安装面和与基板118连接位置处设置有第二翻边(图中未示出)，第三安装面通过第二翻边与散热器113的基板118通过螺钉连接。
为了方便的将牵引功率模块放置在牵引变流柜内或从牵引变流柜内拉出，本实施例的牵引功率模块还包括：两个推拉把手117，两个推拉把手117对称连接在散热器113的基板118上。
具体地，当需要将牵引功率模块放置在牵引变流柜内时，通过两个推拉把手117将牵引功率模块搬至牵引变流柜内，当需要将牵引功率模块搬离在牵引变流柜内时，通过两个推拉把手117将牵引功率模块搬离开牵引变流柜。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (10)

  1. 一种牵引功率模块，其特征在于，包括：
    多个IGBT，各所述IGBT与逆变复合母排的输入接口和输出接口电连接；
    多个突波电容，各所述突波电容与所述逆变复合母排的所述输入接口电连接；
    铜排，所述铜排的一端与所述逆变复合母排的所述输出接口电连接，所述铜排的另一端和接线端子排电连接；
    多个支撑电容，所述支撑电容与直流复合母排电连接，所述直流复合母排还与逆变复合母排的直流输入端电连接；
    所述直流复合母排，用于来自变流***的前端回路的直流电的接入，使得所述支撑电容得以充电；
    所述IGBT，用于将所述直流电转换成交流电，所述交流电依次通过与所述输出接口连接的所述铜排、所述接线端子排，经把接在所述接线端子排上的线缆输出至牵引电机。
  2. 根据权利要求1所述的牵引功率模块，其特征在于，还包括：放电电阻，所述放电电阻与所述逆变复合母排的输入接口电连接。
  3. 根据权利要求1所述的牵引功率模块，其特征在于，还包括：
    电流传感器、电压传感器和控制线接插件；
    所述铜排穿过所述电流传感器，以使所述电流传感器检测所述逆变复合母排输出的交流电流；
    所述电流传感器的控制线和所述电压传感器的控制线均与所述控制线接插件电连接，所述电压传感器的正接口和所述直流复合母排的正接口连接，所述电压传感器的负接口和所述直流复合母排的负接口连接，所述电压传感器用于检测所述直流复合母排输入端的直流电压。
  4. 根据权利要求2所述的牵引功率模块，其特征在于，还包括：散热器，所述IGBT和所述放电电阻与所述散热器的基板连接。
  5. 根据权利要求4所述的牵引功率模块，其特征在于，所述散热器为铝制型材散热器或热管散热器。
  6. 根据权利要求4所述的牵引功率模块，其特征在于，还包括金属 框架；
    所述接线端子排和所述控制线接插件把接在所述金属框架的第一安装面，所述金属框架的第一安装面和所述散热器的基板相对设置；所述金属框架的第二安装面和第三安装面分别与所述散热器的基板连接，所述金属框架的第二安装面和第三安装面相对设置；
    所述电流传感器与所述金属框架的第四安装面和第五安装面把接，所述第四安装面和所述第五安装面在所述第二安装面和所述第三安装面之间；所述电压传感器与所述金属框架的所述第一安装面把接。
  7. 根据权利要求6所述的牵引功率模块，其特征在于，还包括：驱动板推拉模块，所述驱动板推拉模块把接在所述金属框架的第二安装面上；
    所述驱动板推拉模块包括滑道挡板、IGBT驱动板和滑道，所述驱动板设置在所述滑道上，所述滑道挡板设置在所述滑道的一端，在更换IGBT驱动板时，拆下所述滑道挡板，从所述滑道内抽出所述IGBT驱动板。
  8. 根据权利要求2所述的牵引功率模块，其特征在于，所述放电电阻为薄膜陶瓷电阻。
  9. 根据权利要求1所述的牵引功率模块，其特征在于，所述IGBT的个数为8个。
  10. 根据权利要求4所述的牵引功率模块，其特征在于，还包括：两个推拉把手，所述两个推拉把手对称连接在所述散热器的基板上。
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