• CN: 11-2187/TH
  • ISSN: 0577-6686

›› 2006, Vol. 42 ›› Issue (1): 126-129.

• Article • Previous Articles     Next Articles

GENERATION OF CHAOS-BASED SPWM AND ANALYSIS OF ITS SPECTRAL PROPERTY FOR SUPPRESSION OF HARMONICS

LU Yimin;ZHANG Bo;MAO Zongyuan   

  1. College of Electric Engineering, Guangxi University College of Electrical Power, South China University of Technology College of Automation Science and Engineering, South China University of Technology
  • Published:2006-01-15

Abstract: There exists cluster harmonics around the multiples of carrier frequency in conventional sinusoidal pulse width modulation (SPWM) output waves. A new strategy for generation of Chaos-based SPWM (CSPWM) is proposed with the aim of reduction harmonic. A one-dimensional tent map is used to vary the frequencies of the triangular carrier wave so that the harmonics can be distributed continuously and equably over a wide frequency range. The new proposed CSPWM scheme is applied to a voltage source inverter. Research results show that it is effective on suppression of harmonics, moreover, it is easy to realize by microprocessor.

Key words: Chaos, Harmonic, PWM

CLC Number: