Particle swarm optimisation‐based modified SHE method for cascaded H‐bridge multilevel inverters

Low-frequency switching strategies are considered as an effective way of achieving efficient performance in multilevel inverters. Selective harmonic elimination (SHE) is a modulation technique of this category which gives a superior outcome suppressing low-order detrimental harmonics. Limited number of decision variables offered by SHE in the corresponding non-linear equations hinders obtaining high-quality waveforms. Current research is...