Modeling and detection of hot-spot in shaded photovoltaic cells
Modeling and detection of hot-spot in shaded photovoltaic cells
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.
1-9
Rossi, Daniele
30c42382-cf0a-447d-8695-fa229b7b8a2f
Omana, Martin
7c091df8-0526-4d15-aa3f-f25dea90dd18
Giaffreda, Daniele
2d39689b-2783-48cb-aec7-9235900856c2
Metra, Cecilia
c420be13-a9cf-471a-96fb-3f43a694ffae
18 July 2014
Rossi, Daniele
30c42382-cf0a-447d-8695-fa229b7b8a2f
Omana, Martin
7c091df8-0526-4d15-aa3f-f25dea90dd18
Giaffreda, Daniele
2d39689b-2783-48cb-aec7-9235900856c2
Metra, Cecilia
c420be13-a9cf-471a-96fb-3f43a694ffae
Rossi, Daniele, Omana, Martin, Giaffreda, Daniele and Metra, Cecilia
(2014)
Modeling and detection of hot-spot in shaded photovoltaic cells.
IEEE Transactions on Very Large Scale Integration (VLSI) Systems, .
(doi:10.1109/TVLSI.2014.2333064).
Abstract
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.
Text
tvlsi14-hotspot.pdf
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Accepted/In Press date: 9 June 2014
Published date: 18 July 2014
Organisations:
Electronic & Software Systems
Identifiers
Local EPrints ID: 368664
URI: http://eprints.soton.ac.uk/id/eprint/368664
ISSN: 1063-8210
PURE UUID: d97411fd-d694-4ced-9062-bcaaf91e433b
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Date deposited: 11 Sep 2014 09:12
Last modified: 14 Mar 2024 17:51
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Contributors
Author:
Daniele Rossi
Author:
Martin Omana
Author:
Daniele Giaffreda
Author:
Cecilia Metra
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