NDLI: The optimization of auxiliary poles of IPM synchronous machine

Content Provider	IEEE Xplore Digital Library
Author	chao-hui Zhao Yongtian Wang Yang-guang Yan
Copyright Year	2005
Description	Author affiliation: Coll. of Mech. & Electr. Eng., Henan Agric. Univ. (chao-hui Zhao; Yongtian Wang)
Abstract	The interior permanent magnet (IPM) machine, which enjoys advantages such as high efficiency and torque, is widely used not only in home application like air conditioners but also in electric vehicles. Its leakage flux is bigger than surface mounted permanent magnet (SPM), however, because the magnetization direction of permanent magnet is plumb to axes of air gap flux and far away from air gap. In order to reduce leakage flux and improve air gap flux density, we may add auxiliary poles in rotor structure. This paper adopts the vector magnetism potential to calculate machines field, and aim at model of 4 kinds, compare the relation between leakage flux of permanent magnet beside the shaft and equivalent air gap when auxiliary poles are existent and non-existent, respectively. Then, discusses the influence of auxiliary poles in different positions on air gap flux density when pole pairs are different, point out placement position of auxiliary poles and optimizes thickness of rare earth magnet in that position. At same time, the paper analyzes the influence of the thickness of auxiliary poles on the air gap flux density as pole pairs vary
Starting Page	179
Ending Page	184
File Size	2932803
Page Count	6
File Format	PDF
ISBN	0780394844
DOI	10.1109/ICIT.2005.1600632
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-12-14
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Synchronous machines Torque Permanent magnets Magnetic flux Magnetic anisotropy Perpendicular magnetic anisotropy Magnetization Shafts Educational institutions Scanning probe microscopy
Content Type	Text
Resource Type	Article

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