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The Detection of Heat Emission to Solar Cell using UAV-based Thermal Infrared Sensor

UAV 기반 열적외선 센서를 이용한 태양광 셀의 발열 검출

  • Lee, Geun Sang (Department of Cadastre & Civil Engineering, Vision College of Jeonju) ;
  • Lee, Jong Jo (Noori Space Industry Ltd.)
  • 이근상 (전주비전대학교 지적토목학과) ;
  • 이종조 ((주)누리공간산업)
  • Received : 2017.02.08
  • Accepted : 2017.03.23
  • Published : 2017.03.31

Abstract

Many studies have been implemented to manage solar plant being supplied widely in recent years. This study analyzed heat emission of solar cell using unmanned aerial vehicle(UAV)-based thermal infrared sensor, and major conclusions are as belows. Firstly, orthomosaic image and digital surface model(DSM) data were acquired using UAV-based RGB sensor, and solar light module layer necessary to analyze the heat emission of solar cell was constructed by these data. Also as a result of horizontal error into validation points using virtual reference service(VRS) survey for evaluating the location accuracy of solar light module layer, higher location accuracy could be acquired like standard error of $dx={\pm}2.4cm$ and $dy={\pm}3.2cm$. And this study installed rubber patch to test the heat emission of solar cell and could analyzed efficiently the location of rubber patch being emitted heat using UAV-based thermal infrared sensor. Also standard error showd as ${\pm}3.5%$ in analysis between calculated cell ratio by rubber patch and analyzed cell ratio by UAV-based thermal infrared sensor. Therefore, it could be efficiently analyzed to heat emission of solar cell using UAV-based thermal infrared sensor. Also efficient maintenance of solar plant could be possible through extracting the code of solar light module being emitted of heat automatically.

최근 널리 보급되고 있는 태양광 발전소의 유지관리를 위해 다양한 연구들이 시도되고 있다. 본 연구에서는 unmanned aerial vehicle(UAV)기반 열적외선 센서를 이용하여 태양광 셀의 발열을 분석하는 것으로서 주요 결론은 다음과 같다. 먼저 UAV 기반 RGB 센서를 이용하여 정사영상과 digital surface model(DSM) 자료를 구축하였으며, 이를 통해 태양광 셀의 발열 분석에 필요한 태양광 모듈 레이어를 생성하였다. 또한 태양광 모듈 레이어의 위치정확도를 평가하기 위해 virtual reference service(VRS) 측량을 이용하여 검정점에 대한 수평오차를 분석한 결과, 표준오차가 $dx={\pm}2.4cm$, $dy={\pm}3.2cm$로 높은 위치정확도를 확보할 수 있었다. 그리고 태양광 셀의 발열 실험을 위해 고무패치를 설치한 후 UAV 열적외선 센서를 이용하여 발열이 생기는 고무패치의 위치를 효과적으로 분석할 수 있었다. 또한 고무패치 셀 비율과 UAV 열적외선 센서에 의한 셀 비율의 표준오차는 ${\pm}3.5%$로 나타났으며, 따라서 UAV 기반 열적외선 센서를 이용하여 태양광 셀의 발열을 효과적으로 분석할 수 있었다. 아울러 발열이 생기는 셀이 위치하고 있는 태양광 모듈의 코드를 자동으로 추출함으로서 효과적인 태양광발전소 유지보수가 가능하게 되었다.

Keywords

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