Low-Cost Automatic I-V Curve Tracer for Low Voltage Solar Panel
2023 18TH INTERNATIONAL JOINT SYMPOSIUM ON ARTIFICIAL INTELLIGENCE AND NATURAL LANGUAGE PROCESSING, ISAI-NLP(2023)
摘要
Photovoltaic cells or solar cells are becoming more popular in the modern world due to their ability to generate electrical current from light photon. This paper shows a low-cost automated system consisting of an Arduino UNO, ADS1115 analog-to-digital converter, a shunt resistor, and a digital potentio-meter load to trace the I-V curve of a low-power solar panel in varying levels of light illuminance. This curve tracing process was performed on ideal solar panel model to a non-ideal or practical solar panel model by using MATLAB's non-linear least squares algorithm. The results of each model are discussed and compared to determine the best-fitting mathematical model. In addition, the experiment also explored the limitations and capabilities of the automated I-V curve tracer that can be used to find improvements that can be done to the automatic system.
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