Experimental Validation of Metaheuristic and Conventional Modulation, and Hysteresis Control of the Dual Boost Nine-Level Inverter

In this article, various modulation strategies and hysteresis-band control of a recently introduced dual-boost nine-level inverter (DB9LI) are implemented. DB9LI is switched capacitor based capable generating symmetrical nine output voltage levels by employing single DC source. The topology generates boosted bipolar at the side without applying end-side H-bridge (usually employed to generate negative levels), which contrasts with some switched-capacitor topologies. capacitors have an inherent self-balancing feature. Additionally, due lower individual total standing voltages, switches low ratings required. As result, cost reduces considerably. Metaheuristic-based selective harmonic elimination mitigation (SHE SHM) sine-triangular pulse width techniques implemented compared on parameters. Finally, robust eight-band hysteresis designed implemented, helps obtain sinusoidal load current unity power factor. validated MATLAB simulation environment experimental prototype.