An online novel two-layered photovoltaic fault monitoring technique based upon the thermal signatures

Qamar Navid, Ahmed Hassan, Abbas Ahmad Fardoun, Rashad Ramzan

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


The share of photovoltaic (PV) power generation in the energy mix is increasing at a rapid pace with dramatically increasing capacity addition through utility-scale PV power plants globally. As PV plants are forecasted to be a major energy generator in the future, their reliable operation remains of primary concern due to a possibility of faults in a tremendously huge number of PV panels involved in power generation in larger plants. The precise detection of nature and the location of the faults along with a prompt remedial mechanism is deemed crucial for smoother power plant operation. The existing fault diagnostic methodologies based on thermal imaging of the panels as well as electrical parameters through inverter possess certain limitations. The current article deals with a novel fault diagnostic technique based on PV panel electrical parameters and junction temperatures that can precisely locate and categorize the faults. The proposed scheme has been tested on a 1.6 kW photovoltaic system for short circuit, open circuit, grounding, and partial shading faults. The proposed method showed improved accuracy compared to thermal imaging on panel scale fault detection, offering a possibility to adapt to the PV plant scale.

Original languageEnglish
Article number9607
Pages (from-to)1-13
Number of pages13
JournalSustainability (Switzerland)
Issue number22
Publication statusPublished - Nov 2 2020


  • Fault detection
  • Fault diagnostic
  • Ground faults
  • Open circuit
  • Photovoltaic system
  • Shaded faults
  • Short circuit
  • Thermal signatures

ASJC Scopus subject areas

  • Computer Science (miscellaneous)
  • Geography, Planning and Development
  • Renewable Energy, Sustainability and the Environment
  • Building and Construction
  • Environmental Science (miscellaneous)
  • Energy Engineering and Power Technology
  • Hardware and Architecture
  • Computer Networks and Communications
  • Management, Monitoring, Policy and Law


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