Abstract：Aimat high output voltage waveform with high harmonic content in permanent magnet synchronous motor (PMSM) control system, the additional iron loss of PMSM is increased. In this paper, an improved control method is proposed by adding Boost converter between the rectifier and inverter. Firstly, the mathematical analysis model of PMSM and its control system are established. In order to improve the quality of the output voltage waveform of the variable frequency power supply, the Boost converter is introduced between the rectifier and the inverter of the variable frequency power supply. The simulation model of variable frequency power supply system is established to verify the improved control method. The optimization results show that after the introduction of Boost converter, the quality of output voltage waveform of variable frequency power supply is effectively improved. On this basis, the influence of output voltage harmonic content from variable frequency power supply on iron loss of PMSM is analyzed. Finally, a small-scale variable-frequency power supply with rated output voltage of 24V is designed and manufactured, and an experimental test platform is built to verify the accuracy of the method proposed.
谭继鑫, 井永腾, 郭昊, 于占洋, 李岩. 基于Boost变换的永磁同步电机变频电源电压谐波优化控制[J]. 电工技术学报, 2020, 35(21): 4475-4482.
Tan Jixin, Jing Yongteng, Guo Hao, Yu Zhanyang, Li Yan. Optimization Control Voltage Harmonics of PMSM Variable Frequency Power Supply Based on Boost Transform. Transactions of China Electrotechnical Society, 2020, 35(21): 4475-4482.
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2020, Vol. 35 
