COMPARATIVE ANALYSIS OF MODIFIED SHE-PSO PWM AND LS-PWM TECHNIQUES

To address the issues of the multilevel inverters with better performance and efficiency there has
been increased advancements with level shift PWM technique. The paper deals with the analysis of
some such advancements like particle swarm optimization techniques and is contrasted to pulse width
modulation technique in terms of total harmonic reduction, feasibility, switching pattern of PWM
techniques and efficiency. Due to the conventional PWM techniques the complexity of the increased
number of elements and harmonics can be reduced with the particle swarm optimization technique and
can also determine the optimized switching angles in reducing the selected harmonics. The simulations
of the analysis are carried out in the Matlab and the same are presented in the paper which are indeed
proved to be better for PSO in contrast to conventional PWM techniques.