Abstract

Switched capacitor (SC) multi-level inverter (MLI) is the emerging technique in the integration of renewable energy systems due to its high voltage gain. In SC technique, the voltage levels can be increased by switching the DC source along with capacitors. But, designing of MLI with reduced switches and sources is a difficult task due to its complicated switching. This paper proposes a nine-level quadruple boost inverter with reduced switches for stand-alone photovoltaic (PV) system. The inverter proposed produces a nine voltage levels at output by balancing two capacitors' voltages along with source. The proposed nine-level quadruple boost inverter (QBI) topology is compared with other MLI topologies to reflect its merits and demerits. The detailed simulation results are given in this paper to study and analyze the proposed boost inverter.

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