Method for optimize the air gap flux density of permanent magnet synchronous motor

Author

Luo, Derong ; Cheng, Benquan ; Huang, Shoudao ; Gao, Jian

Author_Institution

Coll. of Electr. & Inf. Eng., Hunan Univ., Changsha, China

fYear

2009

fDate

15-18 Nov. 2009

Firstpage

1

Lastpage

4

Abstract

This paper analyzed the no load air gap flux density waveform of surface mounted permanent magnet synchronous motor (PMSM) and then proposed a new method to improve the air gap flux density waveform. Multiple permanent magnets are adopted as a main pole for motor instead of a single one, and the mathematical model to eliminate the harmonics is derived. According to the mathematical model, a PMSM finite element simulation model is created, the FEA results show this method is useful to improve the flux density and reduce its high harmonic components.

Keywords

air gaps; finite element analysis; permanent magnet motors; permanent magnets; synchronous motors; air gap flux density waveform; finite element simulation; mathematical model; multiple permanent magnets; permanent magnet synchronous motor; surface mounted; Core loss; Electromagnetic forces; Finite element methods; Fourier series; Magnetic analysis; Mathematical model; Optimization methods; Permanent magnet motors; Synchronous motors; Torque; FEA; PMSM; air gap flux density; harmonics;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2009. ICEMS 2009. International Conference on

Conference_Location

Tokyo

Print_ISBN

978-1-4244-5177-7

Electronic_ISBN

978-4-88686-067-5

Type

conf

DOI

10.1109/ICEMS.2009.5382794

Filename

5382794