ABSTRACT
This paper delineates a novel high-gain DC-DC converter designed for photovoltaic (PV) applications. The proposed converter yields an overall gain of 22.22. The converter is synthesized by interleaving two similar cubic cell structures using a voltage lift capacitor. The two switches in each cubic cell operate at a 180-degree phase shift, thus canceling out the ripple currents. The switches in the proposed converter are subjected to 50% of Vo. The prototype is simulated using PSIM software to verify the proposed voltage gain concept. The converter specifications are as follows: 18V input, 400V output, 50kHz switching frequency, and 200 W power rating. The efficiency of the prototype is 93.64%. Further, under closed-loop conditions, a regulated output voltage of 400V is obtained.
