Self-sustaining and Externally-powered Fixed, Single, and Dual-Axis Solar Trackers

Abdul Hadi Haji Mohaimin, Mohd. Rakib Uddin, Ashraf Khalil


Power output from a small solar panel can be affected by its power consumption when it consumes power from the solar panel. Its significance was detailed in this paper where the voltage output are compared with those which were externally powered. Due to the use of the tracking system (single axis and dual axis), the power consumption varies from one to another and its effect on the voltage output. For accurate measurement, a controller system was made to automatically measure voltage output from 3 solar panels with different tracking capabilities. Several experiments have been conducted and it was concluded that small solar panels are not efficient enough to utilize with tracking capabilities due to an increase in power consumption. The externally powered system was found to generate 18% more output compared to a self-sustaining system and that the increase in average power consumptions compared to a fixed panel were 31.7% and 82.5% for single-axis and dual-axis tracker respectively.


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