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The Technique of Installing Floating Photovoltaic Systems

수상태양광의 시공기술에 관한 실증연구

  • Received : 2013.06.04
  • Accepted : 2013.09.06
  • Published : 2013.09.30

Abstract

In October 2011, a commercialized 100kW class floating photovoltaic system positive plant was installed at Hapcheon dam a multi-purpose reservoir the first time ever in the nation. Floating photovoltaic system differs in water float, mooring device and underwater cable process from land photovoltaic system. As for land and building photovoltaic power generation equipments, many installation cases and skilled experiences are available, and thus installation is not difficult. However, commercial power generation floating photovoltaic system, which is attempted for the first time in the nation, requires to be designed and installed through a series of processes like technical review and verification of data by process in comparison with similar cases. The structure of floating photovoltaic system, an equipment for float photovoltaic module and other electrical equipment, is required to withstand weather environments like wind or typhoon etc and yet not affect water quality negatively, and for implementation of this system, construction efficiency and economy etc should be considered comprehensively. In this paper, the techniques of installing floating photovoltaic structure, mooring device, underwater cable, electrical equipment and remote monitoring control system are explained. The 100kW floating PV system is operating with 15% average capacity factor.

2011년 10월 국내 최초로 다목적댐 저수지에 100kW급 수상태양광발전 상용화 실증 플랜트가 합천댐에 설치되었다. 수상태양광발전 설비는 육상에 설치하는 태양광발전 설비와는 달리 수상부유체, 계류장치, 수중케이블 등 설치에 많은 어려움이 있다. 특히 수상이라는 환경적 제약으로 인해 육상 태양광 시공 방법으로 공정 관리를 할 수 없는 많은 변수가 속출한다. 수상태양광발전의 구조체는 수상태양광 모듈 및 기타 전기설비를 수상에 부상시키기 위한 설비로서 바람이나 태풍 등 기상환경에 견뎌야 하고 수질에 악영향을 미치지 말아야하며 시공성, 경제성 등 종합적인 고려가 필요하다. 본 논문에서는 100kW 수상태양광 시공사례를 바탕으로 수상태양광의 구조체, 계류장치, 수중케이블, 전력설비 및 원격감시제어시스템의 시공기술에 대한 기초자료를 제공하였다. 본 연구에서 시공된 100kW 수상태양광은 현재 평균 설비이용률 15%로 운영중에 있다.

Keywords

References

  1. Sung-Hun Lee, Nam-hyung Lee, Hyeong-Cheol Choi, Jang-Hwan Yin, "100kW Floating Photovoltaic System Application to Water Surface of Dam", KIEE conference, 2012.07
  2. K-water, Groundwork research for Commercialization of Floated Photovoltaic System, K-water Research Report, 2011
  3. K-water, Groundwork research for Commercialization of Floated Photovoltaic System, K-water Research Report, 2012
  4. K-water, Development of ICT Convergence Technology for Commercialization of Floating Photovoltaic System, K-water Research Report, 2013

Cited by

  1. Structural Safety Assessment of Ocean-Floating Photovoltaic Structure Model vol.55, pp.10, 2015, https://doi.org/10.1002/ijch.201400197
  2. A Study on Modeling of Tracking-Type Floating Photovoltaic System based on Matlab/Simulink vol.64, pp.5, 2015, https://doi.org/10.5370/KIEE.2015.64.5.805
  3. Floating Photovoltaic Plant Location Analysis using GIS vol.24, pp.1, 2016, https://doi.org/10.7319/kogsis.2016.24.1.051
  4. Study on Variations in Flooding Volume According to Ratio of Rainfall to Projected Cross-Sectional Area of Photovoltaic Facilities vol.18, pp.6, 2018, https://doi.org/10.9798/KOSHAM.2018.18.6.313