Simulation analysis of eccentricity of permanent magnet synchronous motor

Author

Xu, Yinglei ; Li, Qunzhan ; He, Shengzhong

Author_Institution

Sch. of Electr. Eng., Southwest Jiaotong Univ., Chengdu, China

fYear

2009

fDate

23-25 July 2009

Firstpage

749

Lastpage

752

Abstract

In order to optimize the back EMF waveform of PMSM, reduce harmonic, the torque ripple, noise vibration and consumption of iron, and also increase the efficiency of the motor, the waveform of no-load airgap flux density of radial v-shaped permanent magnet synchronous motor (PMSM) is analyzed in this paper. The asymmetric airgap of PMSM is presented and studied to improve the waveform distribution. The relation between eccentricity and airgap flux field is analyzed through finite element analysis, and thus the optimal eccentricity is derived and adopts to optimize the asymmetric airgap to obtain a no-load airgap flux density with sinusoidal distribution, which is verified by FEM calculation and experiment result.

Keywords

finite element analysis; harmonic analysis; permanent magnet motors; synchronous motors; vibrations; waveform analysis; FEM calculation; back EMF waveform; eccentricity simulation analysis; harmonics reduction; iron consumption; noise vibration; noload airgap flux density; permanent magnet synchronous motor; radial v-shaped PMSM; torque ripple; waveform distribution; Analytical models; Harmonic analysis; Magnetic analysis; Magnetic flux; Manufacturing; Permanent magnet motors; Permanent magnets; Steel; Synchronous motors; Traction motors;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Circuits and Systems, 2009. ICCCAS 2009. International Conference on

Conference_Location

Milpitas, CA

Print_ISBN

978-1-4244-4886-9

Electronic_ISBN

978-1-4244-4888-3

Type

conf

DOI

10.1109/ICCCAS.2009.5250423

Filename

5250423