Development of Solar Coupled Synchronous Buck Converter

The objective of investigated work is to provide the solution for solar coupled synchronous buck converter. Electrical circuit for buck converter has been proposed and simulation has been carried out through out the research work.solar energy utilisation has attracted the attention of the modern world. In this work power electronics diode was replaced by a switch MOSFET, which has minimum switching losses. Perturb and Observation technique has been adopted for the solar coupled synchronous buck converter. The lithium-ion battery is charged used as load. The maximum power point of the photovoltaic generator varies with solar irriadiance and has nonlinear V-I characteristics. So, to track the operational point at which maximum power can be extracted from the PV system under continuously changing environmental conditions, a simple control mechanism which is cost effective has been proposed. Hardware prototype has been implemented for present work having the good agreement with simulation results.