Abstract

• Solar energy is abundantly available Renewable Energy Source harnessed in all areas of the world and it is available every day. Energy produced by Photovoltaic system is used in many industrial and domestic applications. The sun position can be tracked based on the intensity of light and the power generating capability of the system can be increased. This paper presents the hardware implementation of the solar tracking system by using PIC microcontroller. An efficient and accurate DC motor control system is used to increase the system efficiency and reduces the solar cell system cost. The proposed automatic DC motor control system based on PIC 16F887A microcontroller is used to control the photovoltaic (PV) modules. This DC motor control system will track the sun rays in order to get maximum power point during the day using direct radiation. A photo cell is used to sense the direct sun radiation and feedback a signal to the PIC 16F887A microcontroller, and then the decisions are made through the microcontroller and send a command to the DC motor control system to achieve maximum power generation. The proposed system is demonstrated through simulation results. Finally, using the proposed system based on PIC microcontroller, the system will be more efficient, minimum cost, and maximum power transfer is obtained.