Investigation of Recent Metaheuristics Based Selective Harmonic Elimination Problem for Different Levels of Multilevel Inverters

Multilevel inverters (MLI) are popular in high-power applications. MLIs generally configured to have switches reduced by switching techniques that eliminate low-order harmonics. The selective harmonic elimination (SHE) method, which significantly reduces the number of switching, determines optimal moments obtain desired output voltage and eliminates components. To solve SHE problem, classical methods primarily employed. disadvantages such high probability trapping locally solutions their dependence on initial controlling parameters. One solution overcome this problem is use metaheuristic algorithms. In study, firstly, 22 algorithms with different sources inspiration were used at levels MLIs, performances extensively analyzed. reveal method offers best solution, these first applied an 11-level MLI circuit, six determined as a result performance analysis. As evaluation, outstanding SPBO, BMO, GA, GWO, MFO, SPSA. application superior 7-, 11-, 15-, 19-level according IEEE 519—2014 standard, it has been shown BMO outperforms 7-level MLI, GA SPBO 15- terms THD, while quality, SPSA 15-level come forward.