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Automatic fault detection on BIPV systems without solar irradiation data
Research Areas
  • Electronic technology and of the communications
BIPV systems are small PV generation units spread out over the territory, and whose characteristics are very diverse. This makes difficult a cost-effective procedure for monitoring, fault detection, performance analyses, operation and maintenance. As a result, many problems affecting BIPV systems go undetected. In order to carry out effective automatic fault detection procedures, we need a performance indicator that is reliable and that can be applied on many PV systems at a very low cost. The existing approaches for analyzing the performance of PV systems are often based on the Performance Ratio (PR), whose accuracy depends on good solar irradiation data, which in turn can be very difficult to obtain or cost-prohibitive for the BIPV owner. We present an alternative fault detection procedure based on a performance indicator that can be constructed on the sole basis of the energy production data measured at the BIPV systems. This procedure does not require the input of operating conditions data, such as solar irradiation, air temperature, or wind speed. The performance indicator, called Performance to Peers (P2P), is constructed from spatial and temporal correlations between the energy output of neighboring and similar PV systems. This method was developed from the analysis of the energy production data of approximately 10,000 BIPV systems located in Europe. The results of our procedure are illustrated on the hourly, daily and monthly data monitored during one year at one BIPV system located in the South of Belgium. Our results confirm that it is possible to carry out automatic fault detection procedures without solar irradiation data. P2P proves to be more stable than PR most of the time, and thus constitutes a more reliable performance indicator for fault detection procedures. We also discuss the main limitations of this novel methodology, and we suggest several future lines of research that seem promising to improve on these procedures.
29th European PV Solar Energy Conference and Exhibition Ámsterdam
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Proceedings 29th European PV Solar Energy Conference and Exhibition Ámsterdam
  • Autor: Jonathan Leloux . (UPM)
  • Autor: Luis Narvarte Fernandez (UPM)
  • Autor: Alberto Luna
  • Autor: Adrien Desportes
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Sistemas Fotovoltáicos
  • Centro o Instituto I+D+i: Instituto de Energía Solar
  • Departamento: Teoría de la Señal y Comunicaciones (Provisional)
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Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)