A Novel Algorithm of SVPWM Harmonic Analysis

Abstract

According to the operational principle of SVPWM and considering the characteristics of digital implement, this paper presents a novel algorithm of SVPWM harmonic analysis. This algorithm gives the expression of phase voltage harmonics through Fourier analysis, which provides the guidance for the filter design and motor control. To verify the algorithm, a three-phase voltage source inverter controlled by TMS320F2812 has been built. Power analyzer PZ4000 has been adopted to acquire experimental results. The good agreements between experimental results and those obtain in calculation demonstrate the accuracy of this algorithm.