六相永磁同步发电机系统的零序电流抑制策略

微特电机 ›› 2022, Vol. 50 ›› Issue (7): 53-57.

六相永磁同步发电机系统的零序电流抑制策略

施国栋¹, 孙磊¹, 王侯清², 何坚强¹, 张春富¹

1.盐城工学院,盐城 224051;
2.清华大学精密仪器系,北京 100084

收稿日期:2022-05-05 出版日期:2022-07-28 发布日期:2022-08-15
作者简介:施国栋(1997—),男,硕士研究生,研究方向为无人机电力系统研究。

Zero-Sequence Current Suppression Strategy for Six-Phase PMSG System

SHI Guodong¹, SUN Lei¹, WANG Houqing², HE Jianqiang¹, ZHANG Chunfu¹

1. Yancheng Institute of Technology,Yancheng 224051, China;
2. Department of Precision Instruments, Tsinghua University,Beijing 100084, China

Received:2022-05-05 Online:2022-07-28 Published:2022-08-15

摘要/Abstract

摘要： 针对共直流母线开绕组永磁同步发电机(OW-PMSG)系统在传统空间矢量调制策略下存在的零序电流干扰不足,通过分析共直流母线开绕组电机系统中零序电流产生原因,提出一种应用于六相OW-PMSG系统的零序电流抑制的控制策略。为有效抑制零序电流,引入比例谐振控制器控制变流器产生共模电压,以抵消反电动势三次谐波分量。为有效抑制由定子结构带来的5次、7次谐波,重新选择矢量,并按照计算出的比例关系分配矢量作用时间。对比分析传统最大四矢量控制策略和改进的零序电流抑制策略的仿真结果,验证了该方案的可行性。

关键词: 开绕组永磁同步发电机, 共模电压, 零序电流, 比例谐振控制

Abstract: Aiming at the interference of zero sequence current (ZSC) in traditional space vector modulation strategy for six phase open-end winding permanent magnet synchronous generator (OW-PMSG) system, on the basis of analyzing the law of ZSC, an improved modulation strategy to reduce ZSC was proposed. In order to suppress ZSC effectively, a proportional resonance controller was introduced to control the converter to generate common model voltage to offset the third harmonic voltage.In order to effectively suppress the 5th and 7th harmonics brought by the winding structure, the vector was re-selected and the time of vector actionwas allocated according to the calculated proportional relation.The simulation results of the traditional maximum four vector control strategy and the improved zero-sequence current suppression strategywere compared to verify the feasibility of the scheme.

Key words: open-end winding permanent magnet synchronous generator(OW-PMSG), common mode voltage, zero-sequence current(ZSC), proportional-resonant control

中图分类号:

TM351

施国栋, 孙磊, 王侯清, 何坚强, 张春富. 六相永磁同步发电机系统的零序电流抑制策略[J]. 微特电机, 2022, 50(7): 53-57.

SHI Guodong, SUN Lei, WANG Houqing, HE Jianqiang, ZHANG Chunfu. Zero-Sequence Current Suppression Strategy for Six-Phase PMSG System[J]. Small & Special Electrical Machines, 2022, 50(7): 53-57.

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