Modeling and Detection of Hotspot in Shaded Photovoltaic Cells

Daniele Rossi; Martin Omana; Daniele Giaffreda; Cecilia Metra

doi:10.1109/TVLSI.2014.2333064

Modeling and Detection of Hotspot in Shaded Photovoltaic Cells

Daniele Rossi
, Martin Omana
, Daniele Giaffreda
, Cecilia Metra

Research output: Contribution to journal › Article › peer-review

70 Citations (Scopus)

19 Downloads (Pure)

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.

Original language	English
Pages (from-to)	1031 - 1039
Number of pages	9
Journal	IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Volume	23
Issue number	6
Early online date	18 Jul 2014
DOIs	https://doi.org/10.1109/TVLSI.2014.2333064
Publication status	Published - 1 Jun 2015

Keywords

Energy efficiency
hotspot
photovoltaic (PV) systems
reliability
Maximum power point trackers
Heating

Access to Document

10.1109/TVLSI.2014.2333064

Accepted ManuscriptAccepted author manuscript, 1.37 MB

Cite this

@article{584ebe3722d549f88b4ea4afdab05d08,

title = "Modeling and Detection of Hotspot in Shaded Photovoltaic Cells",

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. ",

keywords = "Energy efficiency, hotspot, photovoltaic (PV) systems, reliability, Maximum power point trackers, Heating",

author = "Daniele Rossi and Martin Omana and Daniele Giaffreda and Cecilia Metra",

note = "This document is the Accepted Manuscript version of the following article: Daniele Rossi, Martin Omaῆa, Daniele Giaffreda, Cecilia Metra, {\textquoteleft}Modeling and Detection of Hotspot in Shaded Photovoltaic Cells{\textquoteright}, 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. {\textcopyright} 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. ",

year = "2015",

month = jun,

day = "1",

doi = "10.1109/TVLSI.2014.2333064",

language = "English",

volume = "23",

pages = "1031 -- 1039",

journal = "IEEE Transactions on Very Large Scale Integration (VLSI) Systems",

issn = "1063-8210",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

number = "6",

}

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. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

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

SN - 1063-8210

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

IS - 6

ER -

Modeling and Detection of Hotspot in Shaded Photovoltaic Cells

Abstract

Keywords

Access to Document

Fingerprint

Cite this