Research on harmonic compensation for flux and current of permanent magnet synchronous motor

Author

Jun Lu ; Jianguo Yang ; Yinchen Ma

Author_Institution

Sch. of Mech. Eng., Donghua Univ., Shanghai, China

fYear

2015

fDate

7-11 July 2015

Firstpage

589

Lastpage

594

Abstract

High order harmonic flux and current of permanent magnet synchronous motor (PMSM) are generated by the distortion of air-gap magnetic field and the nonlinear characteristics of inverter, resulting in the ripple of electromagnetic torque. In this paper, a novel harmonic compensation algorithm was proposed to solve this problem. Based on the harmonic model of the PMSM, harmonic voltage is injected to reduce harmonic components of the motor flux and current. By extraction of harmonic flux/current and injection of harmonic voltage in real-time, high-order harmonics of flux generated by the distortion of air-gap magnetic field and the nonlinear characteristics of inverter is counteracted. Thereby, distortion of motor current is reduced. The effectiveness of the algorithm is validated by simulation and experimentation.

Keywords

compensation; invertors; magnetic flux; permanent magnet motors; power system harmonics; synchronous motors; PMSM; air-gap magnetic field distortion; electromagnetic torque ripple; harmonic compensation algorithm; harmonic components; harmonic current; harmonic model; harmonic voltage; high order harmonic flux; high-order harmonics; inverter nonlinear characteristics; motor current distortion; motor flux; permanent magnet synchronous motor; Harmonic analysis; Harmonic distortion; Inverters; Mathematical model; Permanent magnet motors; Power harmonic filters; Synchronous motors;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Intelligent Mechatronics (AIM), 2015 IEEE International Conference on

Conference_Location

Busan

Type

conf

DOI

10.1109/AIM.2015.7222600

Filename

7222600