New method of silicon photovoltaic panel fault detection using impedance spectroscopy

Joanna Karolina Symonowicz, Nicholas Riedel, Sune Thorsteinsson, D. Sera, Peter Behrensdorff Poulsen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


The aim of our project is to develop a new method for photovoltaic (PV) panel fault detection based on analysing its impedance spectra (IS). Although this technique was successful in assessing the state of degradation of fuel cells and batteries [1, 2], it has never been applied to PV cells on a wide scale. In this paper, we show that, unlike current-voltage (I-V) tests, the IS method is capable of early detection of changes in PV panel parameters due to microcracks and potential-induced degradation (PID). Although our measurements are only successful under dark conditions, the results are similar for both laboratory environment and for outdoor tests in various weather conditions. A fully developed IS technique, accounting for all kinds of most common PV panel degradation types, would surpass the existing PV fault detection methods then it comes to cost and accuracy [3,4].
Original languageEnglish
Title of host publicationProceedings of 33rd European Photovoltaic Solar Energy Conference and Exhibition
Publication date2017
ISBN (Print)3936338477
Publication statusPublished - 2017
Event33rd European PV Solar Energy Conference and Exhibition - RAI Convention & Exhibition Centre, Amsterdam, Netherlands
Duration: 25 Sep 201729 Sep 2017
Conference number: 33


Conference33rd European PV Solar Energy Conference and Exhibition
LocationRAI Convention & Exhibition Centre
Internet address


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