Current Photovoltaic Research

  • 제5권3호
  • /
  • Pages.89-94
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  • 2017
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  • 2288-3274(pISSN)
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  • 2508-125X(eISSN)
한국태양광발전학회 (Korea Photovoltaic Society)
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양면형 태양광발전 소자의 성능변수 및 이에 대한 정확한 측정방법

Performance Parameters of a Bifacial PV Device and Accurate Measurement Method for the Parameters

  • 안승규 (태양광연구실, 한국에너지기술연구원) ;
  • 안세진 (태양광연구실, 한국에너지기술연구원) ;
  • 어영주 (태양광연구실, 한국에너지기술연구원) ;
  • 유진수 (태양광연구실, 한국에너지기술연구원) ;
  • 박주형 (태양광연구실, 한국에너지기술연구원) ;
  • 김기환 (태양광연구실, 한국에너지기술연구원) ;
  • 조아라 (태양광연구실, 한국에너지기술연구원) ;
  • 조준식 (태양광연구실, 한국에너지기술연구원) ;
  • 윤재호 (태양광연구실, 한국에너지기술연구원) ;
  • 신동협 (태양광연구실, 한국에너지기술연구원) ;
  • 정인영 (태양광연구실, 한국에너지기술연구원) ;
  • 곽지혜 (태양광연구실, 한국에너지기술연구원)
  • Ahn, Seungkyu (Photovoltaic Laboratory, Korea Institute of Energy Research) ;
  • Ahn, SeJin (Photovoltaic Laboratory, Korea Institute of Energy Research) ;
  • Eo, Young Joo (Photovoltaic Laboratory, Korea Institute of Energy Research) ;
  • Yoo, Jinsu (Photovoltaic Laboratory, Korea Institute of Energy Research) ;
  • Park, Joo Hyung (Photovoltaic Laboratory, Korea Institute of Energy Research) ;
  • Kim, Kihwan (Photovoltaic Laboratory, Korea Institute of Energy Research) ;
  • Cho, Ara (Photovoltaic Laboratory, Korea Institute of Energy Research) ;
  • Cho, Jun-Sik (Photovoltaic Laboratory, Korea Institute of Energy Research) ;
  • Yun, Jae-Ho (Photovoltaic Laboratory, Korea Institute of Energy Research) ;
  • Shin, Donghyup (Photovoltaic Laboratory, Korea Institute of Energy Research) ;
  • Jung, Inyoung (Photovoltaic Laboratory, Korea Institute of Energy Research) ;
  • Gwak, Jihye (Photovoltaic Laboratory, Korea Institute of Energy Research)
  • 투고 : 2017.08.21
  • 심사 : 2017.09.20
  • 발행 : 2017.09.30
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초록

We have examined the issues on the measurement of bifacial photovoltaic(PV) devices that should be considered in order to ensure a measurement accuracy beyond a certain level and the comparability between the bifacial PV devices. Based on the results of various experiments and previous studies, solutions for these measurement issues are suggested. The most significant technical issues in the performance measurement of the bifacial PV devices are 1) elimination of the effect due to the light reflection on the sample holder surface and 2) the measurement of the expected power generation gain in outdoor operation. The effect due to the light reflection on the sample holder surface can be eliminated by using an anti-reflective sample holder. In case of a reflective sample holder, if the bifacial device have a linear characteristic with respect to the irradiance of incident light, it has been confirmed (through some previous studies and additional experiment) that exact measurement results can be obtained by the correction of the measurement data. In addition, it was also confirmed that the expected power generation gain in the outdoor operation can be obtained by three different methods along with the basic concepts of the bifaciality coefficient, the albedo, and the effective front irradiance.

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