Analysis and Speed Ripple Mitigation of a Space Vector Pulse Width Modulation-Based Permanent Magnet Synchronous Motor with a Particle Swarm Optimization Algorithm

A method is proposed for reducing speed ripple of permanent magnet synchronous motors (PMSMs) controlled by space vector pulse width modulation (SVPWM). A flux graph and mathematics are used to analyze the speed ripple characteristics of the PMSM. Analysis indicates that the 6P (P refers to pole pai...

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Bibliographic Details
Published in:Energies (Basel) Vol. 9; no. 11; p. 923
Main Authors: Liu, Xing, Du, Jinhua, Liang, Deliang
Format: Journal Article
Language:English
Published: Basel MDPI AG 01.11.2016
Subjects:
Algorithms
Coordinate transformations
Electrical engineering
harmonic superposition
Harmonics
Mathematical analysis
Methods
Optimization algorithms
particle swarm optimization (PSO)
Permanent magnets
Pulse duration modulation
Ripples
speed ripple reduction
Swarm intelligence
Synchronous motors
ISSN:1996-1073, 1996-1073
Online Access:Get full text
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Summary:A method is proposed for reducing speed ripple of permanent magnet synchronous motors (PMSMs) controlled by space vector pulse width modulation (SVPWM). A flux graph and mathematics are used to analyze the speed ripple characteristics of the PMSM. Analysis indicates that the 6P (P refers to pole pairs of the PMSM) time harmonic of rotor mechanical speed is the main harmonic component in the SVPWM control PMSM system. To reduce PMSM speed ripple, harmonics are superposed on a SVPWM reference signal. A particle swarm optimization (PSO) algorithm is proposed to determine the optimal phase and multiplier coefficient of the superposed harmonics. The results of a Fourier decomposition and an optimized simulation model verified the accuracy of the analysis as well as the effectiveness of the speed ripple reduction methods, respectively.
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ISSN:1996-1073
1996-1073
DOI:10.3390/en9110923