Title :
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
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;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2011.2174346
