Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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A Study on the Cell String for High Efficiency and High Power Photovoltaic Modules

고효율 및 고출력 태양광 모듈을 위한 셀 스트링 연구

  • Park, Ji Su (Department of Electrical and Computer Engineering, Sungkyunkwan University) ;
  • Hwang, Soo Hyun (Department of Electrical and Computer Engineering, Sungkyunkwan University) ;
  • Oh, Won Je (Department of Electrical and Computer Engineering, Sungkyunkwan University) ;
  • Lee, Su Ho (Department of Electrical and Computer Engineering, Sungkyunkwan University) ;
  • Jeong, Chae Hwan (Solar Cell R&D Center, Korea Institute of Industrial Technology) ;
  • Lee, Jae Hyeong (Department of Electrical and Computer Engineering, Sungkyunkwan University)
  • 박지수 (성균관대학교 전자전기컴퓨터공학과) ;
  • 황수현 (성균관대학교 전자전기컴퓨터공학과) ;
  • 오원제 (성균관대학교 전자전기컴퓨터공학과) ;
  • 이수호 (성균관대학교 전자전기컴퓨터공학과) ;
  • 정채환 (한국생산기술연구원 태양전지R&D센터) ;
  • 이재형 (성균관대학교 전자전기컴퓨터공학과)
  • Received : 2018.03.11
  • Accepted : 2018.04.03
  • Published : 2018.07.01
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Abstract

In this work, we conducted a study on cell strings of high efficiency and high power solar cell modules via simulation. In contrast to the conventional module manufacturing method, the simulation was performed by connecting cutting cells divided into four parts from 6-in size using the electrically conductive adhesive (ECA). The resistance of the ECA added in series connection was extracted using an experimental method. This resistance was found to be $3m{\Omega}$. Based on this simulation, we verified the change in efficiency of the string as a function of the number of cutting cell connections. Consequently, the cutting cell efficiency of the first 20.08% was significantly increased to 20.63% until the fifth connection; however, for further connections, it was confirmed that the efficiency was saturated to 20.8%. Connecting cutting cells using ECA improves the efficiency of the string; therefore, it is expected that it will be possible to fabricate modules with high efficiency and high power.

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References

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