The invention discloses a high step-down ratio transformer-based through flexible traction substation, which comprises a high step-down ratio transformer and a three-phase-single-phase converter, and is characterized in that the primary side of the high step-down ratio transformer is connected with a three-phase power grid, and the secondary side of the high step-down ratio transformer is connected with the input end of the three-phase-single-phase converter; the output end of the three-phase-single-phase converter is connected with a bus, the primary side of the high-step-down-ratio transformer is a group of three-phase windings, the secondary side of the high-step-down-ratio transformer is a plurality of groups of mutually isolated three-phase windings, and the three-phase windings of the secondary side are in triangular connection. And all three-phase windings on the secondary side of the high-step-down-ratio transformer and three-phase windings on the primary side of the high-step-down-ratio transformer are connected through a preset connection group, so that electric phase splitting devices in a traditional railway traction power supply system are reduced or even canceled, and electric phase splitting in the transformer and electric phase splitting between the transformer are canceled; and full connection of traction power supply is realized.

    本发明公开了一种基于高降压比变压器的贯通柔性牵引变电所,包括:高降压比变压器和三相‑单相变流器,其中,所述高降压比变压器的原边与三相电网连接,所述高降压比变压器的副边与三相‑单相变流器的输入端连接,所述三相‑单相变流器的输出端与母线连接,其中,高降压比变压器的原边为一组三相绕组,高降压比变压器的副边为多组互相隔离的三相绕组,且副边的三相绕组为三角连接,且高降压比变压器副边的所有三相绕组与所述高降压比变压器原边的三相绕组之间通过预设的联结组别进行接线,实现了减少乃至取消传统铁路牵引供电系统中的电分相装置,以取消所内电分相以及所间电分相,实现了牵引供电的全贯通。


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    Title :

    Through flexible traction substation based on transformer with high step-down ratio


    Additional title:

    一种基于高降压比变压器的贯通柔性牵引变电所


    Contributors:
    HE XIAOQIONG (author) / ZHAO MIN (author) / HUANG TONGYUE (author) / HUANG JIAN (author) / HAN PENGCHENG (author) / ZENG LI (author) / LIN JINGYING (author) / SHU ZELIANG (author) / GAO SHIBIN (author)

    Publication date :

    2022-04-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES / H01F MAGNETS , Magnete



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