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01166 am a22001573u 4500 |
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368664 |
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|a Rossi, Daniele
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|a Omana, Martin
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|a Giaffreda, Daniele
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|a Metra, Cecilia
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|a Modeling and detection of hot-spot in shaded photovoltaic cells
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|c 2014-07-18.
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|z Get fulltext
|u https://eprints.soton.ac.uk/368664/1/tvlsi14-hotspot.pdf
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|a In this paper, we address the problem of modeling the thermal behavior of photovoltaic (PV) cells undergoing a hotspot condition. In case of shading, PV cells may experience a dramatic temperature increase, with consequent reduction of the provided power. Our model has been validated against experimental data, and has highlighted a counterintuitive PV cell behavior, that should be considered to improve the energy efficiency of PV arrays. Then, we propose a hotspot detection scheme, enabling to identify the PV module that is under hotspot condition. Such a scheme can be used to avoid the permanent damage of the cells under hotspot, thus their drawback on the power efficiency of the entire PV system.
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