Microcontroller-based sun tracking system for PV module

Abstract

This paper presents the proposed experimental implementation of a single-axis sun tracking system for photovoltaic (PV) module. The sun tracking system is implemented experimentally by using advanced virtual RISC (AVR) ATmega microcontroller and an H-bridge. The control system of the implemented system is designed based on utilizing the optical tracking technique, which is chosen, in this work, due to its simplicity and independence on the geographical location. Experimental results indicate that the use of the implemented system gives good results for the proposed sun tracking technique.