Analysis and Testing of Dual Axis Solar Tracker for a Standalone PV System

         This project is used to control the position of a solar panel in accordance with the motion of sun. A solar tracker is a mechanical system that tilts the photovoltaic panel into the direction of the sun to maximize the efficiency of the panel.in order to increase the solar power generation, this paper proposes the design and implementation of a low-cost automatic dual-axis solar tracker system. The tracking system is designed as a closed-loop control based active tracking system, employing Light Dependent Resistor (LDR) sensors as the inputs of the system.

 The tracking strategy utilizes a digital logic design of the sensors participation implemented in a pseudo-azimuthal system to simply rotate around the primary (north-south) axis and the secondary (east-west) axis. In the experiment, the proposed tracking system and the fixed flat-plate system were evaluated for the comparative study.

 The experimental results show that the proposed tracking system increased the efficiency of electrical energy by averagely 44.89%, using the proposed system compared with the fixed flat-plate system. Finally, the cost analysis is provided for the proposed tracking system.