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Fault-tolerant Control for Open Winding Permanent Magnet Motor System With Common DC Bus Based on Decoupled Modulation Strategy

被引：0
|
作者：
Zhu X. [1 ]
Bu X. [1 ]
Zuo Y. [1 ]
Yuan Y. [1 ]
Lu Q. [1 ]
机构：
[1] School of Electrical and Information Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu Province
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2019年 / 39卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Decoupled modulation; Fault-tolerant topology; Leg open-circuit fault; Open winding;
D O I：
10.13334/j.0258-8013.pcsee.181728
中图分类号：
学科分类号：
摘要：
In order to realize fault-tolerant operation of the open winding permanent magnet motor (OW-PMM) with common DC bus under leg open-circuit fault and improve the utilization of the DC voltage, a new fault-tolerant topology based on middle-hexagon SVPWM was proposed in this paper firstly, according to the redundancy of the system. Based on this, through introducing decoupled modulation strategy, the relation between two fault-tolerant topologies and the corresponding decoupling angles was established and the unity fault-tolerant modulation strategy was proposed, which can meet the demand of different fault types. Meanwhile, the utilization rate of DC voltage in the fault-tolerant operation mode is improved and the speed adjustment range of the system is winded. Finally, the fault-tolerant control method of the OW-PMM system with common DC bus was studied experimentally through the establishment of the experimental platform. Theoretical analysis and experimental results verify the effectiveness of the proposed fault-tolerant method. © 2019 Chin. Soc. for Elec. Eng.
引用
收藏
页码：3056 / 3064
页数：8
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