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Algorithm Calculating Optimal DG Capacity Considering Operating Deficit in Hybrid Internal Combustion Generation

하이브리드 내연발전에서 도서 운영 결손액을 고려한 분산전원 최적 용량 산정 알고리즘

  • Son, Joon-Ho (ESS Sales/Engineering Team, LG Electronics) ;
  • Kim, Mi-Young (Dept. of Electrical Engineering, Howon University)
  • 손준호 (LG전자 ESS영업/엔지니어링팀) ;
  • 김미영 (호원대학교 전기공학과)
  • Received : 2018.08.14
  • Accepted : 2018.10.05
  • Published : 2018.10.31

Abstract

Internal combustion generation (ICG) is used to supply power to islands due to geographical characteristics, but there are some problems, such as considerable operating cost, salt pollution, and environmental pollution. For these islands, KEPCO pays a significant amount of operating deficit each year, especially for the fuel and servicing costs, which account for a large portion of this deficit. Integrated ICG (IICG) through an offshore cable between near islands is being considered to decrease servicing costs. Distributed generation (DG) is also being introduced on the islands because of the demand for a low-carbon society. In hybrid internal combustion generation (HICG), DG is introduced into IICG, which can be applied because the DG output is insufficient due to environmental characteristics, and the IICG is used as an auxiliary power source. Therefore, this paper proposes an algorithm to estimate the optimal DG capacity that can be introduced in accordance with the KEPCO operating deficit in the HICG. According to simulations, the optimal DG capacity depends on the fuel cost and load capacity. The validity of the proposed algorithm was confirmed for multiple islands with different peak loads.

Keywords

Diesel generation;Hybrid internal combustion generation;Integrated operation;Operation deficit;Optimal DG capacity

Acknowledgement

Supported by : 호원대학교

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