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http://dx.doi.org/10.5370/KIEE.2013.62.10.1403

Calculation of Parameters Considering Skew in EPS Interior Permanent Magnet Synchronous Motor  

Lee, Su-Jin (Dept. of Autumotive Engineering, Hanyang University)
Hong, Jung-Pyo (Dept. of Autumotive Engineering, Hanyang University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.62, no.10, 2013 , pp. 1403-1407 More about this Journal
Abstract
This paper presents the method to calculate the motor parameters considering skew in EPS Interior Permanent Magnet Synchronous Motor (IPMSM). The skew is applied to stator or rotor by general technology used for design of reducing noise and vibration in motor. The characteristics analysis of motor including the skew is mostly used by 3D Finite Element Analysis (FEA), though, this analysis is a very time-consuming to perform. Besides, The reliability lacks due to the considerable change of motor characteristics according to the number of elements in 3D FEA. However, analysis time and effort can be saved by characteristic analysis considering skew using 2D FEA. Therefore, in this paper, a quick and accurate method for the calculations of motor parameters considering skew is suggested. The proposed method is verified by the comparison of calculated and experimental results.
Keywords
Back electromotive force; Cogging torque; Electric power steering; Finite element analysis (FEA); Inductance; Interior permanent magnet synchronous motor (IPMSM); Skew;
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