Title :
A method of reducing harmonic contents for SPWM
Author :
Gao, Y.X. ; Sutanto, D.
Author_Institution :
Dept. of Autom., Shanghai Univ., China
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;
Conference_Titel :
Power Electronics and Drive Systems, 1999. PEDS '99. Proceedings of the IEEE 1999 International Conference on
Print_ISBN :
0-7803-5769-8
DOI :
10.1109/PEDS.1999.794553
