Numerical Investigation on Torque Harmonics Reduction of Interior PM Synchronous Motor With Concentrated Winding

Author

Lee, Seungho ; Kim, Yong-Jae ; Jung, Sang-Yong

Author_Institution

Sch. of Inf. & Commun. Eng., Sungkyunkwan Univ., Suwon, South Korea

Volume

48

Issue

2

fYear

2012

Firstpage

927

Lastpage

930

Abstract

This paper deals with torque harmonic characteristics of interior permanent magnet synchronous motor (IPMSM) with concentrated winding. In particular, torque ripples including EMF harmonics and cogging torque are numerically investigated with the nonlinear finite element method (FEM), and torque harmonic components are identified with Fourier fast transform (FFT). In particular, the novel design methods to compensate the specified torque harmonics are proposed, and its effectiveness are clarified according to the representative control strategies for IPMSM, maximum torque per ampere (MTPA) and flux-weakening control.

Keywords

electric potential; fast Fourier transforms; finite element analysis; harmonic distortion; machine control; machine windings; permanent magnet motors; synchronous motors; torque motors; EMF harmonics; Fourier fast transform; cogging torque; concentrated winding; flux-weakening control; interior PM synchronous motor; maximum torque per ampere; nonlinear finite element method; permanent magnet synchronous motor; torque harmonic components; torque harmonics reduction; torque ripples; Air gaps; Design methodology; Forging; Harmonic analysis; Rotors; Torque; Windings; Concentrated winding; constant power speed ratio (CPSR); flux-weakening control; interior permanent magnet synchronous motor (IPMSM); maximum torque per ampere (MTPA); torque harmonics; torque ripple;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2011.2174346

Filename

6136661