The invention discloses a locomotive traction transformer and application thereof. The locomotive traction transformer is a three-phase transformer formed by combining three single-phase transformers, and primary side coils of the three single-phase transformers are connected to different output phases of two inversion modules, the two ends of the primary side coil of the same single-phase transformer are respectively connected with the same output phase of the two inversion modules; one end of a secondary coil of each single-phase transformer forms an output end of the three-phase transformer, and the other ends of the secondary coils of the single-phase transformers are mutually connected and grounded. A neutral point of the primary side coil of each single-phase transformer is connected with one end of a secondary side coil through a first switch, and a plurality of connecting switches are arranged on the secondary side coil of each single-phase transformer and used for forming secondary side coils with different turns when the secondary side coils are connected. The locomotive traction transformer has the advantages of being simple in structure, easy and convenient to operate, rich in function, capable of restraining circulation and suitable for different working conditions.

    本发明公开了一种机车牵引变压器及其应用,机车牵引变压器由三个单相变压器组合形成三相变压器,三个所述单相变压器的原边线圈连接至两个逆变模块的不同输出相,且同一单相变压器的原边线圈的两端分别连接两个逆变模块的同一输出相;各所述单相变压器的副边线圈的一端形成三相变压器的输出端,各所述单相变压器的副边线圈的另一端相互连接并接地;各所述单相变压器的原边线圈的中性点与副边线圈的一端通过第一开关连接,各所述单相变压器的副边线圈上设有多个连接开关,用于在接通时形成不同匝数的副边线圈。本发明具有结构简单、操作简便、功能丰富、抑制环流、可适用不同工况等优点。


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    Title :

    Locomotive traction transformer and application thereof


    Additional title:

    一种机车牵引变压器及其应用


    Contributors:
    LI YANPING (author) / LIU YIHONG (author) / SHENG ZHENGBIN (author) / CHEN LI (author) / XIANG KUN (author) / ZENG MINGCHENG (author) / HUANG JIANGRUI (author) / FENG LIPENG (author) / ZHANG ZHIPENG (author) / XU XIAOLEI (author)

    Publication date :

    2021-05-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    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 , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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