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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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

Received: 27 May 2013 Published: 05 August 2014

PACS:

TM301

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	Zhou Xiaoyan
	Zhang Yuejin
	Li Chen
	Qiu Zhijian

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Zhou Xiaoyan,Zhang Yuejin,Li Chen等. Open-Circuit Magnetic Field Calculation for Insert Permanent Magnet Motors With Rotor Eccentricity Based on Analytical-Iteration Method[J]. Transactions of China Electrotechnical Society, 2014, 29(7): 66-76.

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

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