Abstract：Permanent magnet synchronous motor (PMSM) is usually driven directly by the PWM inverter without output filter. However, with the high-frequency power electronic devices, the long-term effects become more prominent, and the resulting overvoltage problems seriously threaten the motor's insulation safety. To solve that problem, the inverter equipped with output LC filter was used, which can filter high-order voltage harmonics and make the output voltage sine wave, but the presence of the capacitor branch caused the inverter current and motor current deviation, therefore a control method of inverter side current feedback (ICF) plus fundamental wave capacitance current compensation was proposed for the purpose of motor current controlling;Besides, the capacitive voltage differential algorithm based on the second order generalized integrator (SOGI) is used to obtain the fundamental component of the capacitive current and a stable range of regulator design was given by stability analysis of proposed control method. The effectiveness of the proposed control method is confirmed by Matlab/Simulink simulation results.
赵仁德, 赵斌, 徐海亮, 孙鹏霄, 董雪梅. 带LC滤波器的永磁同步电机控制系统及策略研究[J]. 电工技术学报, 2019, 34(zk1): 79-86.
Zhao Rende, Zhao Bin, Xu Hailiang, Sun Pengxiao, Dong Xuemei. Research on Control Method of Permanent Magnet Synchronous Motor with LC Filter. Transactions of China Electrotechnical Society, 2019, 34(zk1): 79-86.
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