Development of a characterization technique to effectively detect latent insulation defects in the field-deployed PV modules

IF 6.3 2区 材料科学 Q2 ENERGY & FUELS
E.R. Anagha , S.V. Kulkarni , Narendra Shiradkar
{"title":"Development of a characterization technique to effectively detect latent insulation defects in the field-deployed PV modules","authors":"E.R. Anagha ,&nbsp;S.V. Kulkarni ,&nbsp;Narendra Shiradkar","doi":"10.1016/j.solmat.2025.113761","DOIUrl":null,"url":null,"abstract":"<div><div>—Backsheet defects in field-deployed photovoltaic (PV) modules can cause inverter tripping and electrical hazards. In this paper, it is shown that certain backsheet defects can be latent and are likely to be missed by variants of dry/wet insulation resistance tests if they are applied to field-deployed modules. These latent defects can be difficult to detect visually, can show seasonality, and also pose a challenge in identifying safe modules for potential reuse applications. A new characterization test is developed that can accurately identify the latent insulation defects in field-deployed modules that currently cannot be reliably captured by any of the available tests in PV module qualification/safety standards. Detailed Finite Element Method (FEM) simulations are performed to explain the fundamental working principles for the new test, and results of applying it on good as well as defective modules are presented. It is shown that the new test is significantly more effective than a variant of the typically used dry insulation resistance test in identifying latent insulation defects. The test is developed in such a way that it provides a reasonably high throughput and has the potential to become a benchmark test for detecting latent defects in the insulation of field-deployed PV modules.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"292 ","pages":"Article 113761"},"PeriodicalIF":6.3000,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solar Energy Materials and Solar Cells","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0927024825003629","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
引用次数: 0

Abstract

—Backsheet defects in field-deployed photovoltaic (PV) modules can cause inverter tripping and electrical hazards. In this paper, it is shown that certain backsheet defects can be latent and are likely to be missed by variants of dry/wet insulation resistance tests if they are applied to field-deployed modules. These latent defects can be difficult to detect visually, can show seasonality, and also pose a challenge in identifying safe modules for potential reuse applications. A new characterization test is developed that can accurately identify the latent insulation defects in field-deployed modules that currently cannot be reliably captured by any of the available tests in PV module qualification/safety standards. Detailed Finite Element Method (FEM) simulations are performed to explain the fundamental working principles for the new test, and results of applying it on good as well as defective modules are presented. It is shown that the new test is significantly more effective than a variant of the typically used dry insulation resistance test in identifying latent insulation defects. The test is developed in such a way that it provides a reasonably high throughput and has the potential to become a benchmark test for detecting latent defects in the insulation of field-deployed PV modules.

Abstract Image

开发一种表征技术,有效地检测现场部署的光伏组件中的潜在绝缘缺陷
-现场部署的光伏(PV)模块的背板缺陷可能导致逆变器跳闸和电气危险。本文表明,如果应用于现场部署的模块,某些背板缺陷可能是潜在的,并且很可能被各种干湿绝缘电阻测试遗漏。这些潜在的缺陷可能很难从视觉上检测出来,可能显示出季节性,并且在为潜在的重用应用程序识别安全模块时也提出了挑战。开发了一种新的特性测试,可以准确识别现场部署的模块中潜在的绝缘缺陷,目前光伏组件资格/安全标准中的任何可用测试都无法可靠地捕获这些缺陷。通过详细的有限元模拟来解释新测试的基本工作原理,并给出了将其应用于良好和有缺陷的模块的结果。结果表明,在识别潜在绝缘缺陷方面,新测试比通常使用的干绝缘电阻测试的变体明显更有效。该测试的开发方式提供了相当高的吞吐量,并有可能成为检测现场部署的光伏组件绝缘潜在缺陷的基准测试。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Solar Energy Materials and Solar Cells
Solar Energy Materials and Solar Cells 工程技术-材料科学:综合
CiteScore
12.60
自引率
11.60%
发文量
513
审稿时长
47 days
期刊介绍: Solar Energy Materials & Solar Cells is intended as a vehicle for the dissemination of research results on materials science and technology related to photovoltaic, photothermal and photoelectrochemical solar energy conversion. Materials science is taken in the broadest possible sense and encompasses physics, chemistry, optics, materials fabrication and analysis for all types of materials.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信