计及定子开槽的插入式永磁电机转子偏心空载气隙磁场全局解析迭代模型

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摘要采用解析迭代法研究定子开槽插入式永磁电机转子偏心气隙磁场全局模型。首先采用摄动法计算无槽定子、转子偏心气隙磁场;接着,利用以上结果给出定子开槽区域的边界条件,计算定子开槽后的气隙磁场;然后获得定子开槽后的边界条件,再次计算。经过多次迭代得到最终气隙磁场分布。本模型能够方便地计算各种偏心情况下电机的磁场分布。将本模型计算的气隙磁通密度分布、偏心力和齿槽转矩与有限元模型比较,结果吻合,表明了该全局解析模型的正确性和有效性。

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	周晓燕
	章跃进
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关键词 ：解析迭代, 插入式, 转子偏心, 空载气隙磁场, 偏心力, 齿槽转矩

Abstract：In this paper, the analytical-iteration method is proposed to calculate the open-circuit magnetic field of insert permanent magnet(PM) with rotor eccentricity. Perturbation method is used for computing the magnetic field with rotor eccentricity; considering this result as boundary condition the air-gap magnetic field is obtained with stator slots; after several iterations the final air-gap magnetic field distribution is obtained. This model facilitates the calculation of the magnetic field distribution of the motor in the case of eccentric parameters. The force and the cogging torque are obtained when eccentricity distance changed. The analytical solutions are verified by the results of the corresponding finite element(FE) analysis. The work shows that the proposed method is accurate and effective.

Key words： Analytical-iteration insert rotor eccentricity open-circuit magnetic field eccentricity force cogging torque

收稿日期: 2013-05-27 出版日期: 2014-08-05

PACS:

TM301

基金资助:国家青年自然科学基金资助项目（51007051）

作者简介: 周晓燕女,1978年生,博士研究生,讲师,主要研究方向为永磁电机设计及电机电磁场仿真。章跃进男,1956年生,教授,博士生导师,主要研究方向为电机电磁场及电机动态仿真。

引用本文:

周晓燕, 章跃进, 李琛, 仇志坚. 计及定子开槽的插入式永磁电机转子偏心空载气隙磁场全局解析迭代模型[J]. 电工技术学报, 2014, 29(7): 66-76. Zhou Xiaoyan, Zhang Yuejin, Li Chen, Qiu Zhijian. Open-Circuit Magnetic Field Calculation for Insert Permanent Magnet Motors With Rotor Eccentricity Based on Analytical-Iteration Method. Transactions of China Electrotechnical Society, 2014, 29(7): 66-76.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2014/V29/I7/66

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