Published Paper Details:

Nowadays the utilization of high power Voltage Source Inverter is increased but the matter of harmonic and switching losses in inverter also are increased due to the utilization of power electronic semiconductor switches, which are used for better and efficient operation. In this paper, for eliminating the harmonics presented in full Bridge inverter during switching operation, Selective Harmonic Elimination Pulse Width Modulation (SHEPWM) Technique is employed. For full Bridge operation proper switching angles are calculated by solving nonlinear equation using Newton Raphson method. In this paper a single phase H-bridge inverter using MOSFETs with controlled output voltage with selective harmonic elimination, which reduces the cost of filter and thus improves the inverter voltage waveform. For a multilevel inverter, switching angles at fundamental are obtained by solving the selective harmonic elimination. Comparison of Fourier analysis of H bridge inverter with and without SHEPWM technique is completed.