The invention relates to a double-current-system reconfigurable grid-side converter compatible with a medium-voltage direct-current system and a control method thereof. The control method comprises the following steps: starting an alternating-current grid-connected control process; the system enters a medium-voltage alternating-current steady-state operation state; starting an alternating current off-grid control process, and enabling the system to enter an idle running state; starting a direct current grid-connected control process; the system enters a medium-voltage direct-current steady-state operation state; starting a direct current off-grid control process, and enabling the system to enter an idle running state; and repeating the steps. The system has the advantages that based on the idea of equipment multiplexing, compatibility of the grid-side converter to the medium-voltage alternating-current system and medium-voltage direct-current system traction power supply systems is achieved through a small number of switching devices, and the system has remarkable advantages in the aspects of manufacturing cost and equipment size.

    本发明涉及一种兼容中压直流制式的双流制可重构网侧变流器及其控制方法,包括:启动交流并网控制进程;系统进入中压交流稳态运行状态;启动交流离网控制进程,系统进入惰行运行状态;启动直流并网控制进程;系统进入中压直流稳态运行状态;启动直流离网控制进程,系统进入惰行运行状态;重复运行以上步骤。本发明的有益效果是:本发明基于设备复用的思想,用少量的开关器件实现了网侧变流器对中压交流制式及中压直流制式牵引供电系统的兼容,在制造成本和设备体积上有显著优势。


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    Title :

    Double-current-system reconfigurable grid-side converter compatible with medium-voltage direct-current system and control method of double-current-system reconfigurable grid-side converter


    Additional title:

    一种兼容中压直流制式的双流制可重构网侧变流器及其控制方法


    Contributors:
    LI LUFAN (author) / TONG NIHAN (author)

    Publication date :

    2024-03-26


    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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