Performance Analysis of Modified Nine-level Inverter with SHEPWM using an Artificial Bee Colony Algorithm

This article presents a three-phase modified nine-level multilevel inverter using Artificial Bee Colony Algorithm (ABC) to remove the low order harmonics. Low order harmonics can be fully removed from the output voltage and current waveform by using the proper switching angles. The non-linear equations derived from the Fourier series of the output voltage and current waveform were used to compute the switching angles. The ABC was created specifically for the suggested reduced switch approach topology to solve the nonlinear equation and generate the required switching angles. Simulator tools such PSIM was used to model the circuit, and experimental results were used to evaluate it. The 5th, 7th, and 11th order harmonics will be eliminated, and two modulation indices will be compared, and their performance measured in terms of overall harmonic distortion. THD results will be shown for modulation indexes of 0.58 and 0.83.