Nearest level Modulation Technique based Multilevel Inverter with Less Switches

Voltage source inverters are frequently used in a variety of power conversion applications, including microgrids, HVDC, and renewable energy. Multilevel inverters (MLIs) are the most often used converters for high and medium-power applications across all renewable energy applications. These inverters operate without a transformer and have built-in characteristics, including high voltage quality, reduced dv/dt stress, a modular design, and high voltage quality. These inverters have undergone extensive development over the past three decades, with a focus on numerous different combinations. This article proposes a new seven-level inverter configuration with fewer switches. The effectiveness of the suggested inverter is assessed by employing the Nearest Level Modulation (NLM) method. MATLAB is used to verify the suggested inverter, and several simulation results have been presented. In order to confirm the validity of the simulation results, a hardware prototype is developed in the lab.