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A Position Control Review for a Photovoltaic System:Dual Axis Sun Tracker

Abstract The Sun Tracker is an automated solar panel that actually follows the sun position to increase the power production. After some measurements, the Sun Tracker increases the power production by more than 40% by keeping the panels parallel to the sun that makes the sun rays fall perpendicularly on the solar panel. In this paper, we present a sun tracker without using sun sensors. The sun tracking is performed by changing the solar panel orientation in horizontal andvertical directions by two motors. The control of these motors is ensured by a microcontroller. The proposed system has the capability to track using the location data of the sun.