A method of reducing harmonic contents for SPWM

Author

Gao, Y.X. ; Sutanto, D.

Author_Institution

Dept. of Autom., Shanghai Univ., China

Volume

1

fYear

1999

fDate

1999

Firstpage

156

Abstract

Fully digital AC drives are becoming an industrial standard. While the traditional PWM AC motor drivers use sinusoidal reference waveforms with different optimum modulation strategies, at the present time for high performances drives, the space vector pulse modulation is used. Because the SPWM method is simple and easy to realize, it is also suitable for use in most systems. In the standard SPWM method, the resolution of SPWM has an effect on harmonic contents, especially when a low modulation index is used. This paper describes a simple method to improve the resolution of SPWM. The simulation and experiment results are presented

Keywords

AC motor drives; DC-AC power convertors; PWM invertors; harmonic distortion; power conversion harmonics; AC motor drive; PWM invertors; harmonic content reduction; modulation index; optimum modulation strategies; sinusoidal reference waveforms; space vector pulse modulation; AC motors; Automation; Commutation; Phase modulation; Pulse modulation; Pulse width modulation; Pulse width modulation inverters; Space vector pulse width modulation; Switching frequency; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Drive Systems, 1999. PEDS '99. Proceedings of the IEEE 1999 International Conference on

Print_ISBN

0-7803-5769-8

Type

conf

DOI

10.1109/PEDS.1999.794553

Filename

794553