Development of 3D graph-based model to examine photovoltaic micro cracks

Research output: Contribution to journalArticle

Abstract

This paper presents a novel technique to examine the impact of Photovoltaic (PV) micro cracks on the performance of the output power for PV solar cells. Initially, the image of the PV micro crack is captured using Electroluminescence (EL) method, then processed by the proposed technique. The technique consists of two stages, the first stage combines two images using an OR gate, the first image is the crack-free (healthy) solar cell, whereas the second is the cracked solar cell image. The output image from the first stage is passed into the second stage which uses a 3D graph-based model in order to examine the output power loss in the cracked solar cell. In order to examine the effectiveness of the 3D graph-based model, two different cracked PV solar cells have been examined. From the obtained results, it was evident that the micro cracks size, location and orientation are more detectable using the developed technique. In addition, the maximum and minimum output power can also be estimated using the offered technique.
LanguageEnglish
Number of pages9
JournalJournal of Science: Advanced Materials and Devices
Early online date27 Jul 2018
DOIs
Publication statusE-pub ahead of print - 27 Jul 2018

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Solar cells
Cracks
Electroluminescence

Cite this

@article{de5895a18e024a249d909529d376c501,
title = "Development of 3D graph-based model to examine photovoltaic micro cracks",
abstract = "This paper presents a novel technique to examine the impact of Photovoltaic (PV) micro cracks on the performance of the output power for PV solar cells. Initially, the image of the PV micro crack is captured using Electroluminescence (EL) method, then processed by the proposed technique. The technique consists of two stages, the first stage combines two images using an OR gate, the first image is the crack-free (healthy) solar cell, whereas the second is the cracked solar cell image. The output image from the first stage is passed into the second stage which uses a 3D graph-based model in order to examine the output power loss in the cracked solar cell. In order to examine the effectiveness of the 3D graph-based model, two different cracked PV solar cells have been examined. From the obtained results, it was evident that the micro cracks size, location and orientation are more detectable using the developed technique. In addition, the maximum and minimum output power can also be estimated using the offered technique.",
keywords = "Photovoltaic, Solar cells, Micro cracks detection, Electroluminescence (EL), Power loss",
author = "Mahmoud Dhimish and Violeta Holmes and Peter Mather and Chouder Aissa and Martin Sibley",
year = "2018",
month = "7",
day = "27",
doi = "10.1016/j.jsamd.2018.07.004",
language = "English",
journal = "Journal of Science: Advanced Materials and Devices",
issn = "2468-2284",
publisher = "Elsevier",

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T1 - Development of 3D graph-based model to examine photovoltaic micro cracks

AU - Dhimish,Mahmoud

AU - Holmes,Violeta

AU - Mather,Peter

AU - Aissa,Chouder

AU - Sibley,Martin

PY - 2018/7/27

Y1 - 2018/7/27

N2 - This paper presents a novel technique to examine the impact of Photovoltaic (PV) micro cracks on the performance of the output power for PV solar cells. Initially, the image of the PV micro crack is captured using Electroluminescence (EL) method, then processed by the proposed technique. The technique consists of two stages, the first stage combines two images using an OR gate, the first image is the crack-free (healthy) solar cell, whereas the second is the cracked solar cell image. The output image from the first stage is passed into the second stage which uses a 3D graph-based model in order to examine the output power loss in the cracked solar cell. In order to examine the effectiveness of the 3D graph-based model, two different cracked PV solar cells have been examined. From the obtained results, it was evident that the micro cracks size, location and orientation are more detectable using the developed technique. In addition, the maximum and minimum output power can also be estimated using the offered technique.

AB - This paper presents a novel technique to examine the impact of Photovoltaic (PV) micro cracks on the performance of the output power for PV solar cells. Initially, the image of the PV micro crack is captured using Electroluminescence (EL) method, then processed by the proposed technique. The technique consists of two stages, the first stage combines two images using an OR gate, the first image is the crack-free (healthy) solar cell, whereas the second is the cracked solar cell image. The output image from the first stage is passed into the second stage which uses a 3D graph-based model in order to examine the output power loss in the cracked solar cell. In order to examine the effectiveness of the 3D graph-based model, two different cracked PV solar cells have been examined. From the obtained results, it was evident that the micro cracks size, location and orientation are more detectable using the developed technique. In addition, the maximum and minimum output power can also be estimated using the offered technique.

KW - Photovoltaic

KW - Solar cells

KW - Micro cracks detection

KW - Electroluminescence (EL)

KW - Power loss

U2 - 10.1016/j.jsamd.2018.07.004

DO - 10.1016/j.jsamd.2018.07.004

M3 - Article

JO - Journal of Science: Advanced Materials and Devices

T2 - Journal of Science: Advanced Materials and Devices

JF - Journal of Science: Advanced Materials and Devices

SN - 2468-2284

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