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Algorithm Deciding Offshore Cable Layout Valid for Integrated Power Supply Between Adjacent Islands

근거리 도서간 통합전력공급에 유효한 해저케이블 포설 방안 결정 알고리즘

  • Kim, Mi-Young (Dept. of Electrical Engineering, Howon University) ;
  • Rho, Dae-Seok (Dept. of Electrical Engineering, Korea University of Technology & Education) ;
  • Moon, Guk-Hyun (Economy & Management Research Institute, KEPCO) ;
  • Seo, In-Yong (Economy & Management Research Institute, KEPCO)
  • 김미영 (호원대학교 전기소방학부) ;
  • 노대석 (한국기술교육대학교 전기전자통신공학부) ;
  • 문국현 (한전 경제경영연구원) ;
  • 서인용 (한전 경제경영연구원)
  • Received : 2018.01.04
  • Accepted : 2018.02.02
  • Published : 2018.02.28

Abstract

Islands are supplied with power from diesel generation or from photovoltaic power generation, and problems with offshore environmental impacts (age deterioration, salt pollution), environmental pollution (exhaust gas, noise, dust) and power generation costs (installation, maintenance) have increasingly emerged. In 2016, the cost recovery rate was only 27%, and deficits reached 73% on 65 islands managed by KEPCO. In terms of deficits, the costs incurred in the power generation sector accounted for 91%, with the ratio of fixed costs at about 60%. Analysis suggests that operating costs can be reduced with an optimal power supply system that improves power generation efficiency and makes operating systems more efficient. Therefore, it is possible to simplify fuel transportation and facility maintenance, because one island integrates the power plants of remote islands, and offshore cable is used to supply power to the other islands. From the economic evaluations in this paper, an algorithm deciding offshore cable layout validity for an integrated power supply between adjacent islands is presented. Simulation results based on the proposed algorithm confirmed that an integrated power supply is economical for existing stand-alone operations on islands having diesel generation, low peak power, and near distances.

Acknowledgement

Grant : 도서간 해저케이블을 통한 통합운영 경제성 분석 연구

Supported by : 한국전력공사

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