Harmonics Injected SVPWM Method for Five-phase H-bridge Inverter

This paper analyzes the space voltage vectors and their corresponding relationship in each subspace, and the SVPWM method with harmonic voltage injected is proposed. For the output voltage contains quintuple harmonics, according to the constitutive relationship between CPWM and SVPWM, expressions of these special harmonics are calculated. On the basis above, the optimized method to eliminate these special harmonics is proposed, and then experiments for different modulation waveforms have been done. Compared experiments results of the conventional method with those of the optimized method, it indicates that the proposed optimized SVPWM algorithm can not only realize the control for magnitude and phase angle of fundamental and third harmonics effectively, but also eliminate the special harmonics.