无轴承交替极永磁电机空载气隙磁场全局解析模型

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Abstract The exact analytical model of the consequent-pole permanent magnet rotor is established for the no-load air-gap magnetic field calculation in consequent-pole permanent magnet bearingless motor. The solution region is divided into air-gap domain, permanent magnet domains and slot domains. Laplace equations or Poisson equations are solved based on the boundary condition between two adjacent sub-domains, where the air-gap flux density expressions are obtained by the use of magnetic vector potential. Comparing the analytical results of the air-gap flux density and the back-electromotive force with the finite element analytical results, the correctness and effectiveness of the exact analytical model is verified.

Key words： Bearingless motor consequent-pole permanent magnet rotor no-load air-gap magnetic field exact analytical model

Received: 30 November 2011 Published: 20 March 2014

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TM351

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	Li Chen
	Zhang Yuejin
	Qiu Zhijian

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Li Chen,Zhang Yuejin,Qiu Zhijian. Exact Analytical Model for the No-Load Air-Gap Magnetic Field Calculation in Consequent-Pole Permanent Magnet Bearingless Motor[J]. Transactions of China Electrotechnical Society, 2012, 27(11): 104-110.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2012/V27/I11/104

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