Fitting Procedure for PV Panel Measured Current-Voltage Characteristics

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Abstract

Current-voltage curve measurements are a potential tool for efficient monitoring and diagnosis of photovoltaic (PV) panels and systems. To determine indicators of aging, degradation and other such phenomena of PV panels, an attractive option is to fit an electrical model of the PV panels to measured data in order to detect changes. However, raw measurement data usually contains measurement noise and other factors that can distort the analysis. The fitting process is challenging for instance, by the fact that the measurement points are unevenly distributed on the current-voltage curve, being mainly clustered on the open-circuit region. This unintentional weight can distort the fit. To address these issues, the present paper introduces a procedure for fitting an electrical model of the PV panels to the measured current-voltage curves so as to alleviate the above problems. The proposed approach is a prerequisite for a reliable diagnosis of the PV system status.
Original languageEnglish
Title of host publication37th European Photovoltaic Solar Energy Conference and Exhibition (37th EU PVSEC), (2020)
PublisherEU PVSEC
Pages1506-1511
Number of pages6
ISBN (Electronic)3-936338-73-6
DOIs
Publication statusPublished - 2020
Publication typeA4 Article in conference proceedings
EventEuropean Photovoltaic Solar Energy Conference and Exhibition -
Duration: 7 Sept 202011 Sept 2020

Publication series

NameProceedings (EU PVSEC)
ISSN (Electronic)2196-100X

Conference

ConferenceEuropean Photovoltaic Solar Energy Conference and Exhibition
Period7/09/2011/09/20

Publication forum classification

  • Publication forum level 1

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