TY - JOUR
T1 - Modeling and Detection of Hotspot in Shaded Photovoltaic Cells
AU - Rossi, Daniele
AU - Omana, Martin
AU - Giaffreda, Daniele
AU - Metra, Cecilia
N1 - This document is the Accepted Manuscript version of the following article: Daniele Rossi, Martin Omaῆa, Daniele Giaffreda, Cecilia Metra, ‘Modeling and Detection of Hotspot in Shaded Photovoltaic Cells’, IEEE Transactions on Very Large Scale Integration (VLSI) Systems, Vol. 23 (6): 1031-1039, July 2014, DOI:
https://doi.org/10.1109/TVLSI.2014.2333064.
© 2014 IEEE.
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PY - 2015/6/1
Y1 - 2015/6/1
N2 - 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.
AB - 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.
KW - Energy efficiency
KW - hotspot
KW - photovoltaic (PV) systems
KW - reliability
KW - Maximum power point trackers
KW - Heating
U2 - 10.1109/TVLSI.2014.2333064
DO - 10.1109/TVLSI.2014.2333064
M3 - Article
VL - 23
SP - 1031
EP - 1039
JO - IEEE Transactions on Very Large Scale Integration (VLSI) Systems
JF - IEEE Transactions on Very Large Scale Integration (VLSI) Systems
SN - 1063-8210
IS - 6
ER -