Integrated Flyback Converter with MPPT Control for Photovoltaic Applications

Abstract

This study consists of the analysis and modeling of a maximum power point tracking (MPPT)-controlled flyback integrated converter for a photovoltaic system. Here MPPT is used to maximize power withdrawal under all certain conditions such as when the solar radiation is less. MPPT introduced in photovoltaic system also tracks the regularly fluctuating maximum power point. Buck-boost flyback integrated converter is used as a DC-DC converter in the proposed system. This converter combines two buck-boost converters and one flyback converter into a single-stage structure with single power switch. This converter can boost up the supply voltage to a higher level that can be applied for the grid-tied application.

Keywords: high step-up BBIF, DC-DC converter, MPPT controller, single switch