The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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A Study on Module-based Power Compensation Technology for Minimizing Solar Power Loss due to Shaded Area

음영지역 발생으로 인한 태양광 발전손실 최소화를 위한 모듈부착형 전력보상기술에 관한 연구

  • Received : 2018.04.09
  • Accepted : 2018.06.15
  • Published : 2018.06.30
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Abstract

Recently, as the solar power generation market is rapidly increasing, interest is focused on research for minimizing the output of the solar cell module. The role of the power optimizer is important when inconsistencies occur in photovoltaic power generation. In the conventional system, centralized inverter method and microinverter method are mainly used. In this paper, we analyze the problem of power generation efficiency loss due to the incompatibility of existing system configuration methods. We also proposed a module - type power compensation method that can improve the mismatch caused by shading. The proposed module - based power optimizer is implemented and compared with the existing operation method. From the simulation result, it was confirmed that the efficiency of the proposed operation method is improved compared to the existing method.

최근 태양광발전시장이 급격히 증가하면서 태양전지 모듈 출력 최소화를 위한 연구에 관심이 집중되고 있다. 태양광 발전에서 부정합이 발생하면 옵티마이저의 역할이 중요하다. 기존의 시스템에서는 중앙 집중형 인버터 방식과 직렬형 마이크로인버터방식을 주로 사용되고 있다. 본 논문에서는 기존의 시스템 구성방식과 부정합으로 인한 발전효율 손실 문제를 분석하였다. 또한 음영으로 인한 부정합이 발생하게 되면 이를 개선할 수 있는 모듈 부착형 전력보상방식을 제안하였다. 제안한 모듈 부착형 옵티마이저를 구현하여 기존의 운영방식과 비교, 분석한 결과 제안한 운영방식의 효율이 크게 향상됨을 확인하였다.

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References

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