Journal
INFRARED PHYSICS & TECHNOLOGY
Volume 83, Issue -, Pages 182-187Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.infrared.2017.04.015
Keywords
Infrared thermography; Fault diagnosis; PV module; Thermal signatures
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Degradation of PV modules can cause excessive overheating which results in a reduced power output and eventually failure of solar panel. To maintain the long term reliability of solar modules and maximize the power output, faults in modules need to be diagnosed at an early stage. This paper provides a comprehensive algorithm for fault diagnosis in solar modules using infrared thermography. Infrared Thermography (IRT) is a reliable, non-destructive, fast and cost effective technique which is widely used to identify where and how faults occurred in an electrical installation. Infrared images were used for condition monitoring of solar modules and fuzzy logic have been used to incorporate intelligent classification of faults. An automatic approach has been suggested for fault detection, classification and analysis. IR images were acquired using an IR camera. To have an estimation of thermal condition of PV module, the faulty panel images were compared to a healthy PV module thermal image. A fuzzy rule -base was used to classify 'faults automatically. Maintenance actions have been advised based on type of faults. (C) 2017 Elsevier B.V. All rights reserved.
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