LUO CONVERTER BASED SOLAR PV SYSTEM

Abstract

To meet the increase in power demands and to reduce the global warming, the cheap and obtainable
renewable energy sources like wind, solar, hydro and tidal energy based system is used. Out of the various renewable
energy sources, solar energy is the best alternative for fossil fuel because of its nonpolluting, reliable and clean in
nature. But the solar system converts only 30 to 40% of solar irradiation into electrical energy when compared to
other renewable energy sources. To get maximum output from a PV panel system, an extensive research has been
carried out for long time to access the performance of PV system and to analyze the different concerns related to the
use of solar PV system efficiently. This paper presents a method of gaining high output voltage using LUO converter
which is a high DC-DC converter. This method uses a combination of inductor, and a capacitor to lift the input
voltage to a higher value of output voltage. The voltage gain of the converter in a re-lift configuration is two times of
that provided by a boost converter while using a single switch. The system is simulated using MATLAB and the results
are presented and compared with the hardware model results to support the theoretical analysis.