Numerical Integration Based analysis of Pulse Width Modulated voltage source inverter

Abstract

A power electronics circuit is a converter that converts energy from one level of voltage/current/frequency to another using semiconductor-based electronic switches. The process of switching the electronic devices in a power electronic converter from one state to another is called modulation. There are a number of modulation strategies. The less the degree to which undesirable harmonics are created the better the modulation strategy. The figure of merit or criterion of performance is the first-order weighted total harmonic distortion factor (WTHD0). The analysis of Pulse Width Modulation (PWM) Schemes is discussed. Numerical Integration Based Solution is proposed. The results obtained from Matlab sub-programs developed for the analysis are presented. The proposed solution improves both the speed and the accuracy of analysis.