Research on Flux-Weakening Performances for Five-Phase Fault-Tolerant Permanent-Magnet Vernier Motors

被引：0
|
作者：
Liu G. [1 ,2 ]
Yang X. [1 ,2 ]
Xu L. [1 ,2 ]
Zhao W. [1 ,2 ]
Zhou H. [1 ,2 ]
机构：
[1] School of Electrical and Information Engineering, Jiangsu University, Zhenjiang
[2] Jiangsu Key Laboratory of Drive and Intelligent Control for Electric Vehicle, Zhenjiang
来源：
Zhao, Wenxiang (zwx@ujs.edu.cn) | 1600年 / China Machine Press卷 / 32期
关键词：
Fault-tolerant machine; Flux-weakening performance; Permanent magnet synchronous machine; Vernier machine;
D O I：
10.19595/j.cnki.1000-6753.tces.L70485
中图分类号：
学科分类号：
摘要：
The fault-tolerant permanent magnet vernier (FTPMV) machine combines the advantages of high torque density of the permanent-magnet vernier machine and high reliability of the fault-tolerance permanent-magnet machine. Hence, it has become a hot research topic for experts and scholars. In order to study the operating performances of this kind of machine in low and high speed operation regions, the structure, modulation principle of magnetic fields and inductance characteristics of two five-phase machines are compared and analyzed in this paper. Additionally, the mathematical model of five-phase machines is deduced based on flux-weakening and the drive system is established according to the space vector pulse width modulation (SVPWM) control method. Based on the stage control strategy, in the low speed region, id=0 control strategy is used. In the high speed region, a kind of flux-weakening control strategy is used and the flux-weakening characteristics of machines are studied importantly, in which the moment of flux-weakening is judged based on the difference between bus-bar voltage and back-EMFs. Moreover, by parameters calculation and simulations, it can be found that the new FTPMV machine possesses better flux-weakening capacity than the conventional FTPMV machine when they works on the condition of rated current. Finally, the theoretical analysis is verified by experimental results. © 2017, The editorial office of Transaction of China Electrotechnical Society. All right reserved.
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页码：52 / 61
页数：9
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