Self‐Regulated Capacitors‐Based Extendable Reduced Switch Y‐Type Multilevel Inverter

ABSTRACT To improve the voltage quality and efficiency in a renewable power conversion systems, single‐input multilevel inverters (MLIs) with single‐stage boosting have become the ultimate choice. This work presents a new single input MLI topology employing reduced number of components and with inherent voltage boosting. The generalized structure of the proposed MLI is presented first, and then the analysis is carried out for a 17‐level operation. The design and self‐regulating ability of each capacitor is analyzed using one basic module in the MLI. Comparative evaluation with recent‐art MLIs shows that the proposed topology has the lowest number of switches and capacitors. Simulation result analysis is provided under different test conditions to verify the circuit operation. Furthermore, extensive experimental analysis is carried out under several dynamic test conditions to validate the MLI.