Accurate Magnetic Circuit Model of Multi-Tooth Switched Flux Permanent Magnet Memory Machine Considering the Mutual Inductance
Shen Yuefen1,2, Liu Xu1,2
1. State Key Laboratory of Reliability and Intelligence of Electrical Equipment School of Electrical Engineering Hebei University of Technology Tianjin 300130 China; 2. Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province School of Electrical Engineering Hebei University of Technology Tianjin 300130 China
Abstract：The mutual inductance between adjacent armature windings of the multi-tooth switched flux permanent magnet memory machine (multi-tooth SFPMMM) is large, which will produce a large error if the mutual inductance is ignored in the optimal design. To improve the accuracy of optimization, the equivalent magnetic circuit model (EMCM) considering the mutual inductance and the end leakage was proposed in the paper. And an equivalent model considering the mutual inductance between two adjacent phases of the multi-tooth SFPMMM was established. Finally, the results of finite element analysis and the experimental prototype were used for verification. Compared with the EMCM without considering the mutual inductance, the experimental results show that the calculation accuracy of the back electromotive force (back-EMF) in no-load condition is improved by 15.3% using the proposed model.
沈月芬, 刘旭. 考虑互感的多齿开关磁链永磁记忆电机的精确磁路模型[J]. 电工技术学报, 2022, 37(10): 2435-2445.
Shen Yuefen, Liu Xu. Accurate Magnetic Circuit Model of Multi-Tooth Switched Flux Permanent Magnet Memory Machine Considering the Mutual Inductance. Transactions of China Electrotechnical Society, 2022, 37(10): 2435-2445.
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2022, Vol. 37 
