Analytical Approach to Optimize the Waveform for Stepped Wave Inverter

The stepped wave inverters got prominence due to their low THD and higher efficiency. The construction of an optimized waveform for a given multilevel inverter is very important aspect in design and performance analysis of inverter. In this paper by using a search algorithm, optimum parameters are found by constructing all the possible waveforms under given constraints and finding the optimized waveform with the least THD. With the help of a powerful computing software (Matlab) the search algorithm is implemented and the optimum parameters are obtained.