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    • 3. 发明申请
    • CONVERTER SYSTEM AND CONTROL METHOD THEREOF
    • 转换器系统及其控制方法
    • US20130279222A1
    • 2013-10-24
    • US13619573
    • 2012-09-14
    • Li CAILiang CAOChang-Yong WANG
    • Li CAILiang CAOChang-Yong WANG
    • H02M1/00
    • H02M5/4585H02J3/386H02M7/493H02P21/22H02P2101/15Y02E10/763
    • A control method of a converter system includes: sampling a current of each three-phase winding to obtain a real-time current of each converter; obtaining a mean current by averaging the real-time current of each secondary converter and the real-time current of the primary converter, and transferring the mean current to each secondary converter; obtaining the differential-mode current corresponding to each secondary converter according to the mean current and the real-time current of each secondary converter; performing a circulation current control on the mean current and the differential-mode current of each secondary converter based on a d-q coordinate system to generate a mean-current conditioning signal and a differential-mode current conditioning signal, thereby controlling each secondary converter; and obtaining a sum of the differential-mode current conditioning signal of the secondary converters and negating the sum to obtain a differential-mode current conditioning signal of the primary converter, thereby controlling the primary converter.
    • 转换器系统的控制方法包括:对每个三相绕组的电流进行采样以获得每个转换器的实时电流; 通过平均每个次级转换器的实时电流和初级转换器的实时电流来获得平均电流,并将平均电流传送到每个次级转换器; 根据每个次级转换器的平均电流和实时电流获得与每个次级转换器相对应的差模电流; 基于d-q坐标系对每个次级转换器的平均电流和差模电流执行循环电流控制,以产生平均电流调节信号和差模电流调节信号,从而控制每个次级转换器; 并且获得二次转换器的差模电流调节信号的和,并且否定该和以获得初级转换器的差模电流调节信号,从而控制一次转换器。