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http://dx.doi.org/10.5370/JEET.2014.9.6.1960

Analysis of a Surface-Mounted Permanent-Magnet Machine with Overhang Structure by Using a Novel Equivalent Magnetic Circuit Model  

Yeo, Han-Kyeol (Dept. of Electrical and Computer Engineering, Seoul National University)
Woo, Dong-Kyun (Power & Industrial Systems R&D Center, Hyosung Corporation)
Lim, Dong-Kuk (Dept. of Electrical and Computer Engineering, Seoul National University)
Ro, Jong-Suk (Creative Research Engineer Development, Brain Korea 21 Plus, Seoul National University)
Jung, Hyun-Kyo (Dept. of Electrical and Computer Engineering, Seoul National University)
Publication Information
Journal of Electrical Engineering and Technology / v.9, no.6, 2014 , pp. 1960-1966 More about this Journal
Abstract
The rotor overhang is used to enhance the air-gap flux and improve the power density. Due to the asymmetry in the axial direction caused by the overhang, a time consuming 3D analysis is necessary when designing a motor with overhang. To solve this problem, this paper proposes an equivalent magnetic circuit model (EMCM) which takes account overhang effects without a 3D analysis by using effective air-gap length. The analysis time can be reduced significantly via the proposed EMCM. A reduction in the analysis time is essential for a preliminary design of a motor. In order to verify the proposed model, a 3-D finite-element method (FEM) analysis is adopted. 3-D FEM results confirm the validity of the proposed EMCM.
Keywords
Analytical method; Equivalent magnetic circuit model; Rotor overhang; SPM machine;
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Times Cited By KSCI : 1  (Citation Analysis)
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