Multilevel Inverter Real-Time Simulation and Optimization Through Hybrid GA/PSO Algorithm

TL;DR

This paper introduces a hybrid GA/PSO algorithm for real-time optimization of multilevel inverters, effectively minimizing voltage harmonics and regulating voltage in various inverter configurations.

Contribution

It presents a novel hybrid GA/PSO algorithm tailored for real-time harmonic minimization and voltage regulation in multilevel inverters, adaptable to different inverter levels.

Findings

Successful real-time simulation of 7-level inverter

Successful real-time simulation of 11-level inverter

Effective harmonic reduction and voltage regulation

Abstract

This paper presents a new real-time intelligent optimization algorithm to minimize the voltage harmonics of a multilevel inverter. Hybrid Genetic algorithm /Particle swarm optimization algorithm is employed in a real-time simulation to identify the best fire angels of the multilevel inverter to eliminate any destructive effect, such as dc voltage variations and changes in line and dc-link resistors. The dual objective function of harmonic minimization and voltage regulation is considered in this real-time simulation. This approach can be applied to any multilevel inverter with various numbers of levels. The validity of the proposed algorithm is proven by real-time simulation of seven and an eleven-level inverter.