Harmonic reduction using Particle Swarm Optimization based SHE Modulation Technique in Asymmetrical DC-AC Converter

Many inverters play an important role in transmitting and processing energy to power system networks. To reduce the cost size of multilevel inverters, various topologies have been included literature. But these do not look at complete harmonic distortion output waveform. In this study, a modern inverter structure, mutated H-bridge is adopted that demands small amount switches, driver circuits, diodes DC voltage sources compared conventional produce required level voltage. The converter uses nearest-level control method, produces high value total low-level harmonics content also high, which more dangerous than high-order harmonics. Therefore, selective elimination (SHE) method used low frequency Comparison deviation using above-mentioned strategies on 31-level presented. Simulation studies confirm performance with low-order SHE process. effectiveness accuracy producing 31 waveform demonstrated by utilizing test outcomes THD found order 2.8%, 1.7%, 1.7% 1% for modulation index values 0.5590, 0.7440, 0.8380 0.9110 respectively.