Low Common Mode Interference SVPWM Control for Dual Three Phase Permanent Magnet Synchronous Motor

被引：0
|
作者：
Zhang Z. [1 ]
Wu X. [1 ]
Liu X. [2 ]
机构：
[1] School of Electrical Engineering, Shenyang University of Technology, Shenyang
[2] State Grid Liaoning Electric Power Co. Ltd, Huludao Electric Power Supply Company, Huludao
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2018年 / 33卷
关键词：
Common mode interference; Dual three phase permanent magnet synchronous motor; Harmonic; Space vector pulse width modulation (SVPWM);
D O I：
10.19595/j.cnki.1000-6753.tces.180707
中图分类号：
学科分类号：
摘要：
In order to reduce the common mode interference of dual three-phase permanent magnet synchronous motor (PMSM), a novel space vector pulse width modulation (SVPWM) control strategy is proposed in this paper. Firstly, in the motor driving system, the generation mechanism of the common mode voltage (CMV) is analyzed and discussed. Secondly, based on the voltage vector redundancy of the dual three-phase PMSM, for each sector, the voltage vector combination with lower CMV amplitude and smaller variation frequency is selected, which finally reduces the system common mode interference. Through theoretical analysis and physical experiment, the proposed control strategy can effectively reduce the amplitude of common mode voltage up to 1/6 of the DC bus voltage. Furthermore, the variation frequency of CMV is reduced to 2, so that the system common mode current can be decreased. In addition, from the experiment, it can be seen that there is no obvious increase in the stator current harmonic components when the motor is operating under middle or high-speed condition. © 2018, Electrical Technology Press Co. Ltd. All right reserved.
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页码：58 / 66
页数：8
相关论文
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