A SEPIC derived single stage buck-boost inverter for photovoltaic applications

This paper presents a transformer-less, single stage, doubly grounded, buck-boost single phase inverter. The inverter is derived from SEPIC converter by replacing its output side inductor with a coupled inductor. Stand-alone operation of the inverter is discussed with resistive and inductive load. Simulation results are given to validate the operational ability of proposed inverter.