Permanent Magnet Eddy Current Loss Analysis of a Novel Motor Integrated Permanent Magnet Gear

Author

Zhang, Yuqiu ; Lu, Kaiyuan ; Ye, Yunyue

Author_Institution

Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China

Volume

48

Issue

11

fYear

2012

Firstpage

3005

Lastpage

3008

Abstract

In this paper, a new motor integrated permanent magnet gear (MIPMG) is discussed. The focus is on eddy current loss analysis associated to permanent magnets (PMs). A convenient model of MIPMG is provided based on 2-D field-motion coupled time-stepping finite element method for transient eddy current analysis. The model takes the eddy current effect of PMs into account in determination of the magnetic field in the air-gap and in the magnet regions. The eddy current losses generated in the magnets are properly interpreted. Design improvements for reducing the eddy current losses are suggested. The proposed model and the results presented in this paper will give useful guidelines for a reliable design and design optimization of the MIPMG.

Keywords

air gaps; eddy current losses; finite element analysis; gears; magnetic fields; optimisation; permanent magnet motors; 2D field-motion coupled time-stepping finite element method; MIPMG; air-gap; design improvements; design optimization; eddy current effect; eddy current losses; magnet regions; magnetic field; motor integrated permanent magnet gear; permanent magnet eddy current loss analysis; reliable design; transient eddy current analysis; Eddy currents; Gears; Permanent magnet motors; Permanent magnets; Rotors; Torque; Transient analysis; Eddy current loss; gear; permanent magnet (PM); time-stepping finite-element method;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2012.2200663

Filename

6333038