Model Predictive Torque Control of Six-phase and Three-phase PMSM Series-connected System With Common Mode Voltage Suppression

被引：0
|
作者：
Pan B. [1 ]
Zhou Y. [1 ]
机构：
[1] Fujian Key Laboratory of New Energy Generation and Power Conversion, Fuzhou University, Fuzhou
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2021年 / 41卷 / 16期
关键词：
Common mode voltage; Model predictive torque control; Multi-phase motor series-connected system; Virtual voltage vector; Zero-sequence current;
D O I：
10.13334/j.0258-8013.pcsee.201369
中图分类号：
学科分类号：
摘要：
Common mode voltage (CMV) with high frequency and high amplitude is an important cause of motor winding failure and bearing damage, and its electromagnetic interference can easily affect the normal use of surrounding equipment. A model predictive torque control (MPTC) strategy with common mode voltage suppression was proposed in this paper for the six-phase and three-phase permanent magnet synchronous motor (PMSM) series-connected system. Only 20 basic voltage vector with zero common mode voltage were selected to suppress the common mode voltage of the system. To suppress the zero sequence current of the system, 13 virtual voltage vectors with zero sequence voltage of 0 were synthesized from 20 basic voltage vectors. Furthermore, a zero sequence current PI regulator was introduced to adjust the duty cycle of two basic voltage vectors used to synthesize the virtual voltage vector to suppress the zero sequence current caused by the nonlinear factors of actual system. The experimental results show that the proposed strategy not only realizes torque, stator flux amplitude tracking and zero sequence current suppression, but also effectively inhibits the common mode voltage of the system. © 2021 Chin. Soc. for Elec. Eng.
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页码：5727 / 5736
页数：9
相关论文
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