Two Ways of Rotating Freedom Solar Tracker by Using ADC of Microcontroller

Abstract

Solar trackers are used to improve electric power radically of photovoltaic panel by using different sensor. The sensors retrieve the solar radiation. This paper presents a simple method, low cost microcontroller based solar tracker of two ways of rotating freedom in order to achieve the right positioning of photovoltaic solar cell to get the much sunlight during the day light session and as a result produce more electricity. This tracking system is developed with two direct current motor operated by a PIC16F72 microcontroller which processes the sensors (LDR) information by its internal ADCanalog to digital converter with Fuzzy logic and send correct information to motor controller IC-LM392D by which motor is operated. The motor is so operated that the panel can rotates two ways such as horizontally and vertically of its direction. A comparison has been made on a conventional solar follower plant and trucking system.