Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
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Losses Comparison and Analysis for Fault Modes of Grid-connected Photovoltaic System

계통연계형 태양광발전 시스템의 고장유형별 손실 비교분석

  • So, Jung-Hun (Photovoltaic laboratory, Korea Institute of Energy Research) ;
  • Ko, Suk-Whan (Photovoltaic laboratory, Korea Institute of Energy Research) ;
  • Ju, Young-Chul (Photovoltaic laboratory, Korea Institute of Energy Research)
  • 소정훈 (한국에너지기술연구원 태양광연구실) ;
  • 고석환 (한국에너지기술연구원 태양광연구실) ;
  • 주영철 (한국에너지기술연구원 태양광연구실)
  • Received : 2017.04.10
  • Accepted : 2017.06.21
  • Published : 2017.06.30
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Abstract

This paper presents losses comparison and analysis results for different types of fault modes of grid-connected photovoltaic system generated for long-term operation. The approach of losses comparison and analysis by faults is to identify relationship between measured and estimated values of five loss factors which are quantified from irradiance to system output power. This paper presents the symptom results for faults such as snow, shading, sensor defect, blackout, soiling and so on from three years or more monitored data. These results will indicate that it is useful to develop fault detection and diagnosis tool to enhance capacity factor and save operation and maintenance cost of grid-connected photovoltaic system in the field.

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References

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  1. A Study on the Improvement of Efficiency by Detection Solar Module Faults in Deteriorated Photovoltaic Power Plants vol.11, pp.2, 2017, https://doi.org/10.3390/app11020727