[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5370/JEET.2016.11.4.898

Characteristic Analysis and Experimental Verification of the Axially Asymmetric Structured Outer-Rotor Type Permanent Magnet Motor

Seo, Myung-Ki (School of Electronic and Electrical Engineering, Sungkyunkwan University)
Lee, Tae-Yong (School of Electronic and Electrical Engineering, Sungkyunkwan University)
Park, Kyungsoo (School of Electronic and Electrical Engineering, Sungkyunkwan University)
Kim, Yong-Jae (Dept. of Electrical Engineering, Chosun University)
Jung, Sang-Yong (School of Electronic and Electrical Engineering, Sungkyunkwan University)

Publication Information

Journal of Electrical Engineering and Technology / v.11, no.4, 2016 , pp. 898-904 More about this Journal

Abstract

In this study, we have dealt with a design characteristic of outer-rotor type permanent magnet (PM) motor applied for Engine Cooling Fan (ECF). When we design a motor with structure like this type, it is required as a requisite to consider 3-Dimensional (3-D) effect by implementing a non-linear Finite Element Analysis (FEA) due to a yoke-ceiling, which is perpendicular to the axis of rotation. We have analyzed identical models under three different conditions. The analysis has been performed through a non-linear 2-Dimensional (2-D) and 3-D FEA. Finally, the results have been compared with Back Electro-Motive Force (BEMF) value of actual motor model. As a result, a yoke-ceiling function as an additional flux path and the operating point on B-H curve of rotor material is shifted to non-saturation region relatively. Accordingly, magnetic flux linkage can be increased and motor size can be decreased under same input condition to satisfy ECF specification, such as torque.

Keywords

Permanent Magnet; Yoke-ceiling; Flux linkage; Saturation; Back electro-motive force; Magnetic flux density;

Citations & Related Records

Reference

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