Current Photovoltaic Research

Korea Photovoltaic Society (한국태양광발전학회)
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Research on Ultraviolet Light Degradation According to Types of Encapsulants for PV Modules

태양광 모듈용 봉지재 종류에 따른 자외선 광열화 연구

  • Seungah Ur (Department of Electrical and Computer Engineering, Sungkyunkwan University) ;
  • RakHyun Jeong (Department of Electrical and Computer Engineering, Sungkyunkwan University) ;
  • JuHwi Kim (Department of Electrical and Computer Engineering, Sungkyunkwan University) ;
  • Chanyong Lee (Department of Electrical and Computer Engineering, Sungkyunkwan University) ;
  • Lee Jaehyeong (Department of Electrical and Computer Engineering, Sungkyunkwan University)
  • 어승아 (전자전기컴퓨터공학과, 성균관대학교) ;
  • 정낙현 (전자전기컴퓨터공학과, 성균관대학교) ;
  • 김주휘 (전자전기컴퓨터공학과, 성균관대학교) ;
  • 이찬용 (전자전기컴퓨터공학과, 성균관대학교) ;
  • 이재형 (전자전기컴퓨터공학과, 성균관대학교)
  • Received : 2023.11.22
  • Accepted : 2023.12.08
  • Published : 2023.12.31
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Abstract

Pressure to reduce costs in the current solar market is driving the development and implementation of new module designs and prompting the use of new materials and components. In order to utilize the variability of each material that makes up the module, it is essential to understand the basic characteristics of the material. In this article, we evaluate light degradation after UV irradiation as an encapsulation material. Measure and analyze the results of various characteristic tests for discoloration, optical and electrical property degradation before and after UV accelerated testing. To evaluate weathering stability, UV tests were performed comparing existing EVA and UVT-EVA, POE and improved low-cost POE. Even in the weather resistance test with a total UV exposure of 60 kW/m2, the properties of the encapsulants were mostly stable. EVA and POE-based encapsulants showed slight differences, and these slight differences are believed to pose a threat to long-term stability. This study is a basic analysis of encapsulation research for PV modules and will be helpful in understanding future development and encapsulant properties.

Keywords

Acknowledgement

본 연구는 한국에너지기술평가원의 '태양광 설치단가와 LOCE 경쟁력 확보를 위한 700W+ 고출력 모듈 개발 및 양산성 검증'(과제번호: 2022303001 0180)의 일환으로 수행되었습니다.

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