PV system performance evaluation by clustering production data to normal and non-normal operation.

O. Tsafarakis, K. Sinapis, W. G. J. H. M. van Sark

Research output: Contribution to conferencePaperAcademic

Abstract

The purpose of this study is the development of an algorithmic tool to cluster the points of a scatterplot of "System Yield vs. Reference Yield" of photovoltaic systems, which tends to follow a linear regression. From such clustering one can distinguish data points that comply with the linearity (inliers) and the data points which do not (outliers). The tool then is applied to the scatterplot for two main purposes: a) to detect and exclude any data input anomalies or b) to detect and separate measurements where the PV system is functioning properly from the measurements that show that the photovoltaic (PV) system is malfunctioning.
Original languageEnglish
Pages423-425
Number of pages3
DOIs
Publication statusPublished - 2019
Event46th IEEE Photovoltaic Specialists Conference (PVSC 46) - Chicago, Il, United States
Duration: 16 Jun 201921 Jun 2019

Conference

Conference46th IEEE Photovoltaic Specialists Conference (PVSC 46)
Country/TerritoryUnited States
CityChicago, Il
Period16/06/1921/06/19

Keywords

  • photovoltaic power systems
  • power system measurement
  • regression analysis
  • data input anomalies
  • photovoltaic system
  • PV system performance evaluation
  • production data
  • nonnormal operation
  • algorithmic tool
  • system yield
  • reference yield
  • linear regression
  • data points
  • normal operation

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