Author : Singireddy Mallikarjun 1
Date of Publication :21st February 2018
Abstract: Renewable energy is generally defined as energy that is collected from resources and continuously replenished, such as sunlight, water, wind, tides and biomass. Most of the renewable energy source comes either directly or indirectly from the sun. This solar energy can be utilised by using solar photovoltaic cells and photovoltaic effect to convert solar energy into electrical energy . There are different types of mechanisms to improve the solar cell efficiency and to reduce the cost. The solar tracking system is the most appropriate method to improve the efficiency of solar cells by tracking the sun with respect to its change in direction. Thus the solar trackers come into existence. The main aim of this paper is the design and construction of a real-time dual axis Arduino controlled solar tracker to get the maximum power from the solar panels by changing their direction with respect to the sun. This setup uses Light Dependent Resistors (LDR) to sense the position of the sun which is interfaced to an Arduino Uno microcontroller which then commands a pair of linear-actuators to re-orient the solar panel in order to stay perpendicular to the sun rays. The design was constructed successfully and tested to determine the raise/gain in efficiency. The result shows the new system performs XX.XX% better than the immobile solar tracking system
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