The calculation of eddy current losses density distribution in the permanent magnet of PMSM

Author

Wang, Xiaoyuan ; Li, Juan ; Song, Peng

Author_Institution

Sch. of Electr. Eng. & Autom., Tianjin Univ., China

Volume

3

fYear

2005

fDate

4-7 Dec. 2005

Abstract

A formula is proposed to calculate eddy current losses density distribution in the permanent magnet of PMSM. The magnetic field of motor is solved by FEM and eddy current losses in PM are calculated to verify the formula. The complicated three-dimensional structure is considered and one pole of motor is selected as the model analyzed according to its symmetry. To acquire desirable analysis and precise waveform of eddy current, 100 time steps are selected to do instantaneous analysis in one cycle. Skin depth of magnetic field is considered when finite elements are divided. As a result, the influencing factor of eddy current losses is concluded according to our calculation and the formula gets verified.

Keywords

eddy current losses; finite element analysis; magnetic fields; permanent magnet motors; permanent magnets; synchronous motors; eddy current losses density distribution; finite element method; magnetic field of motor; permanent magnet synchronous motor; skin depth; Eddy currents; Magnetic analysis; Magnetic fields; Magnetic losses; Magnetic materials; Permanent magnet motors; Permanent magnets; Sheet materials; Stators; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings

Print_ISBN

0-7803-9433-X

Type

conf

DOI

10.1109/APMC.2005.1606667

Filename

1606667