The invention discloses a converter device, a converter method and a traction power supply system. In a same power unit group, first converter sides of M power units are cascaded, and second converter sides of the M power units are connected in parallel after being connected through decoupling modules in the power unit group. First converter sides of the N power unit groups are cascaded, a first converter side high-potential terminal of the power unit at the first cascading position is connected to the first power supply arm, and a first converter side low-potential terminal of the power unit at the last cascading position is grounded. Second converter sides of the N power unit groups are connected with N transformer windings in a one-to-one correspondence mode, the N transformer windings form a winding on one side of the voltage transformation module, and the winding on the other side of the voltage transformation module is connected to the second power supply arm. Therefore, one group of power units can share one transformer winding through the decoupling module, so that the number of transformers is reduced, the device connection structure is simplified, and the device cost is reduced.

    本发明公开了一种变流装置、方法及牵引供电系统,在同一功率单元组内,M个功率单元的第一变流侧级联,M个功率单元的第二变流侧经所在功率单元组内的解耦模块连接后并联;N个功率单元组的第一变流侧级联,处于第一个级联位置的功率单元的第一变流侧高电位端子接入第一供电臂,处于最后一个级联位置的功率单元的第一变流侧低电位端子接地;N个功率单元组的第二变流侧与N个变压器绕组一一对应连接,N个变压器绕组构成变压模块的一侧绕组,变压模块的另一侧绕组接入第二供电臂。可见,本申请通过解耦模块可实现一组功率单元共用一个变压器绕组,从而减少了变压器数量,简化了装置连接结构,降低了装置成本。


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    Title :

    Converter device and method and traction power supply system


    Additional title:

    一种变流装置、方法及牵引供电系统


    Contributors:
    WU LIRAN (author) / ZHANG MIN (author) / ZHOU FANGYUAN (author) / ZHANG ZHIXUE (author) / QIU LEBING (author) / LYU SHUNKAI (author) / HU QIAN (author) / XIAO YUXIANG (author) / TIAN ZHE (author) / XU XIAOTIAN (author)

    Publication date :

    2022-02-22


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



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