The invention provides a multi-power-supply-system power supply system, which comprises a transformer, a plurality of PWM rectifiers, a first switch unit and a second switch unit, wherein the PWM rectifiers are fully-controlled rectifier circuits; the primary side of the transformer is connected with at least one alternating current power supply line, the secondary side of the transformer is connected with the input end of the first switch unit, the output end of the first switch unit is connected with the input ends of the PWM rectifiers, and switching of alternating current power supply systemsis achieved. The output ends of the PWM rectifiers are connected with the input end of the second switch unit, and the output end of the second switch unit is connected with a load, thereby achieving the switching of a DC power supply system. The invention further provides a multi-power-supply-system power supply method. According to the multi-power-supply-system power supply system, free switching of multiple power supply systems is achieved, regenerative braking energy can be fed back to the alternating current network side, an energy feedback device is replaced, the research and development cost and the production cost are saved, and maintenance and replacement are convenient.

    本发明提供了一种多供电制式供电系统,包括变压器、多个PWM整流器、第一开关单元以及第二开关单元,PWM整流器为全控整流电路;所述变压器的原边至少与一条交流供电线连接,所述变压器的副边与所述第一开关单元的输入端连接,所述第一开关单元的输出端与多个所述PWM整流器的输入端连接,实现交流供电制式的切换;多个所述PWM整流器的输出端与所述第二开关单元的输入端连接,所述第二开关单元的输出端与负载连接,实现直流供电制式的切换;本发明还提供一种多供电制式供电方法。本发明提供的多供电制式供电系统,实现了多种供电制式的自由切换,可将再生制动能量回馈到交流网侧,替代了能量回馈装置,节省了研发和生产的成本,维护替换方便。


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    Title :

    Multi-power-supply-system power supply system and power supply method


    Additional title:

    一种多供电制式供电系统及供电方法


    Contributors:
    CUI YANG (author) / WANG HAIRUI (author) / ZHANG RUNZE (author) / YANG SHAOKUN (author) / HAN BING (author) / ZHANG PENG (author)

    Publication date :

    2020-08-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES / 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



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