Development of high efficiency boost converter for photovoltaic application

Abstract

In this paper, a development of high efficiency boost converter for photovoltaic application is presented. The design aimed to create a completely self-contained unit capable of converting light energy from the sun into electrical energy. The initial goal was to build a device that could provide a stable 24 V/sub dc/ output, from a fluctuating direct current-linked input voltage from the photovoltaic array. The typical application of this boost converter is to provide a DC power supply for inverter either for grid connected or standalone system. To perform the optimum operation for the design topology the simulation software PESIM was utilised. The chip UA3843A was used in order to get the specification target. The 120 W converter has been developed with 1.2% of maximum output voltage ripple and the capability of efficiency is achieved more than 85%.