A Multi-Tooth Fault-Tolerant Flux-Switching Permanent-Magnet Machine With Twisted-Rotor

被引：31

作者：

Wang, Yu ^{[1
]}

Deng, Zhiquan ^{[1
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Dept Elect Engn, Nanjing 210016, Jiangsu, Peoples R China

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2012年 / 48卷 / 10期

基金：

高等学校博士学科点专项科研基金;

关键词：

Fault tolerant; flux-switching; multi-tooth; torque density; twisted-rotor; OPTIMAL TORQUE CONTROL; BRUSHLESS MACHINES; COGGING-TORQUE; PERFORMANCE; DESIGN; MOTORS; STATOR; SLOT;

D O I：

10.1109/TMAG.2012.2198921

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Flux-switching permanent-magnet (FSPM) machines have high torque density, high efficiency, and robust rotor structure. In order to achieve a high level of fault-tolerant capability and torque capability simultaneously, a multi-tooth 6-stator pole, 19-rotor pole fault-tolerant FSPM machine with twisted-rotor (MTFTFSPM-TR) is investigated and its design specifications including rotor pole numbers and gap width between the stator tooth and the fault-tolerant tooth are analyzed in this paper. Compared with a 12-stator pole, 14-rotor pole alternate poles wound fault-tolerant FSPM (FTFSPM) machine, the MTFTFSPM-TR shows higher torque density, better capability to inhibit short-circuit current, and lower cogging torque. Moreover, the twisted-rotor structure can achieve a symmetric and high sinusoidal back-electromotive force in each armature coil without the value reduction. Electromagnetic performance of the MTFTFSPM-TR has been verified experimentally on a prototype machine.

引用

页码：2674 / 2684

页数：11

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