NDLI: Experimental study of static and dynamic behaviours of cracked PV panels

Content Provider	IET Digital Library
Author	Soeidat, Mohammad Al Cheng, Tian Lu, Dylan Dah Chuan Agelidis, Vassilios Georgios
Abstract	Solar cell power performance is greatly affected by two critical factors ageing and crack. In order to mitigate their negative effects on the solar system, these cells are to be substituted by new cells, thus, replacing the panels. This study presents an active crack detection method that detects the cracked cells within a solar string by using AC parameter characterisation without a need to have a physical inspection. The mathematical module of the solar cell shows that it constitutes of series and parallel resistors in addition to a parallel capacitor and that their values change by ageing and crack. In addition to studying the effects of the crack on the solar cell, it is verified by the experiment that the solar cells behave as a capacitive circuit, and their capacitance increases when the cell gets cracked, getting higher as the crack becomes more serious. The experiment is extended to investigate the effect of series and parallel PV strings, which are affected by cracked and partially shaded cells to evaluate their criticality levels. By monitoring the AC parameter of the solar cell and the change of the capacitance, it is easy to detect the crack when it occurs.
Starting Page	3002
Ending Page	3008
Page Count	7
ISSN	17521416
Volume Number	13
e-ISSN	17521424
Issue Number	Issue 16, Dec (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rpg/13/16
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2019.0359
Journal	IET Renewable Power Generation
Publisher Date	2019-09-13
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Active Crack Detection Method Crack Detection Crack Detection Technique Cracked Cell Cracked PV Panels Cracks DC-DC Power Converter Partially Shaded Cell Photoelectric Conversion Photovoltaic Power System Solar Cell And Array Solar Cell Array Solar Cell Power Performance Solar Panel Solar Power Stations Solar String Solar System
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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