Proposed Method for Two Axis Tracking of PV Modules Using Advanced Microcontroller

In this study, a stand-alone photovoltaic power system was designed and implemented to operate as an application of a digital control system. Sun-tracker is implemented for improved efficiency of the system by keeping the solar module perpendicular to the sun's incoming rays. An experimental system was implemented to demonstrate the effectiveness of the proposed system. Experimental results are given to verify the system's efficiency. A proposed method is employed to seek the maximum power point using two lighting sensors the data obtained from a two sensor is compared by microcontroller. Microcontroller is making PV module track the maximum sun light which leads to obtain a maximum power. The system is implemented using microcontroller and stepper motor and experimental work used to prove feasibility of the proposed method.