Analytical Calculation of Armature Reaction Field of the Interior Permanent Magnet Motor

Fangwu Ma, Hongbin Yin, Lulu Wei, Liang Wu and Cansong Gu
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Fangwu Ma: State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130000, China
Hongbin Yin: State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130000, China
Lulu Wei: State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130000, China
Liang Wu: State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130000, China
Cansong Gu: China Automotive Technology and Research Center Co., Ltd., Tianjin 300300, China

Energies, 2018, vol. 11, issue 9, 1-12

Abstract: The energy crisis and environmental concerns worldwide have helped usher in the age of electric vehicles (EVs) and hybrid EVs (HEVs). The interior permanent magnet motors (IPMMs) are widely used in these vehicles. The analysis of the armature reaction field is the most critical issue in the study of IPMMs since it determines the characters of torque, efficiency, vibration, and the radiated acoustic noise. This paper provides a calculation method of the armature reaction magnetic field (ARMF) of an IPMM. First, the formulas of ARMF without magnetic barrier are derived. Second, the relative permeance function of an IPMM is calculated. Third, the analytical solution of the ARMF of an IPMM is derived by applying the armature reaction magnetic field with unsaturated rotor multiplied by relative permeance function. Finally, several results of comparisons between the calculation method proposed in this paper and the finite element method are presented. Based on the calculation method proposed in this paper, the magnetic barrier’s influence on the ARMF is studied. The spatial harmonic orders and time harmonic orders of the ARMF of IPMM are revealed respectively.

Keywords: interior permanent magnet motor; armature reaction field; analytical model; relative permeance function (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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