Optimal Controller Design of PUC-15 MLI Topology for Smart Grid Applications with Reduced Power Components

This paper focus on the designing of PI controller with softening switching sequence for 15 level PUC multilevel inverter topology. The PI controller and switching sequence is able to reduce the burden on power semiconductor components, control higher-order harmonics, and work at lower switching frequencies. Furthermore, the execution of 15PUC is observed in terms of (THD) total harmonic distortion, ultra-transient load voltage to load current waveforms. The using PI controller along with constant frequency-based level shift multicarrier PD-Phase disposition SPWM-sinusoidal pulse width modulation technique. The insights of PI controller and soften switching with PD modulation PWM technique simulations are analyzed by using MATLAB/Simulink. By using this PI controller, current %THD is obtained to maintain under IEEE-519 standard less than 5%