Research on Z-source Inverter Based on Harmonic Suppression Methods

Based on the Z source inverters operating characteristics studied, and has carried out harmonic analysis by simulation of its output voltage. Through the reasonable design of carrier frequency, filter design and triple frequency harmonic injection method to suppress the output voltage harmonic, the Z source inverter is simulated by SIMULINK. Through the analysis of the THD of output voltage, the method of Z source inverter output voltage harmonic s with good inhibitory effect.