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| Numerical Investigation on Permanent-Magnet Eddy Current Loss and Harmonic Iron Loss for PM Skewed IPMSM |
| Journal of Magnetics, Volume 16, Number 4, 31 Dec 2011, Pages 417-422 |
Jinwoo Lim (Department of Electrical Engineering, Dong-A University), Yong Jae Kim (Department of Electrical Engineering, Chosun University), Sang-Yong Jung *  (School of Information and Communication Engineering, Sungkyunkwan University) |
| Abstract |
This paper presents the characteristics of PM eddy current loss and harmonic iron loss for PM step-skewed Interior Permanent Magnet Synchronous Motor (IPMSM) with concentrated windings and multi-layered PM under the running condition of maximum torque per ampere (MTPA) and flux-weakening control. In particular, PM eddy current loss and harmonic iron loss in IPMSM have been numerically computed with threedimensional Finite Element Analysis (3D FEA), whereby IPMSM with concentrated windings and multi-layered PM has been designed to identify the optimized skew angle contributing to the reduced PM eddy current loss and torque ripples, while maintaining the required average torque. Furthermore, numerical investigation on PM eddy current loss and iron loss at MTPA and flux-weakening control has been carried-out in terms of PM step-skew.
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| Keywords: interior permanent magnet synchronous motor; torque ripple; permanent magnet eddy-current loss; iron loss; finite element analysis |
| DOI: http://dx.doi.org/10.4283/JMAG.2011.16.4.417 |
| Full Text: PDF |
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