Magnetic Equivalent Circuit Model Considering Overhang Structure of a Surface-Mounted Permanent-Magnet Motor

Title
Magnetic Equivalent Circuit Model Considering Overhang Structure of a Surface-Mounted Permanent-Magnet Motor
Author(s)
여한결[여한결]임동국[임동국]우동균노종석[노종석]정현교[정현교]
Keywords
AIR-GAP; FLUX; MACHINES; LEAKAGE
Issue Date
201503
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE TRANSACTIONS ON MAGNETICS, v.51, no.3
Abstract
An overhang structure is used to enhance the air-gap flux density and increase the torque density of a motor. In the preliminary design stage, consideration of the overhang effect is important for a precise prediction of the performance of a motor with overhang and for the selection of the proper overhang length. The 3-D finite-element method (FEM) is essential when analyzing a motor with an overhang structure due to the asymmetry in the axial direction caused by overhang. However, it is computationally expensive and time-consuming, especially during the initial design stage. In this paper, we propose a magnetic equivalent circuit model, which considers the overhang structure of a surface-mounted permanent-magnet motor. With the proposed analytical method, the computational time is significantly reduced in the preliminary design stage. The proposed analytical model is verified with a 3-D FEM analysis.
URI
http://hdl.handle.net/YU.REPOSITORY/33064http://dx.doi.org/10.1109/TMAG.2014.2345558
ISSN
0018-9464
Appears in Collections:
공과대학 > 전기공학과 > Articles
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