Abstract- The aim of this paper is to design and construct a solar photovoltaic system that can receive a maximum power from sun. Two solar panels, two stepping motors and one Atmega IC were used in this design. One of the panels rotates 200 steps in a complete round and 200 voltage samples are received from the stepping motor to be carried to the main panel, which commands the best movement toward the best position. Maximum power point tracking (MPPT) has been conducted using an online method. As such, the proposed system has also been tried via MATLAB software. The simulation results confirm the proposed approach. Keywords: Solar Panel, Stepping Motor, Maximum Power Point Tracking (MPPT).
INTERNATIONAL JOURNAL of RENEWABLE ENERGY RESEARCH Vol.6, No.4, December,2016