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

  • 제36권6호
  • /
  • Pages.570-575
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  • 2023
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  • 1226-7945(pISSN)
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  • 2288-3258(eISSN)
한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
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해상풍력단지 J-Tube 내부 해저케이블의 절연 특성 평가

Insulation Characteristics Evaluation of Submarine Cables Inside the J-Tube of Offshore Wind Farms

  • 이승원 (한국전기연구원 전력케이블연구센터) ;
  • 최진욱 (한국전기연구원 전력케이블연구센터) ;
  • 김해종 (한국전기연구원 전력케이블연구센터)
  • Seung-Won Lee (Power Cable Research Center, Korea Electrotechnology Research Institute) ;
  • Jin-Wook Choe (Power Cable Research Center, Korea Electrotechnology Research Institute) ;
  • Hae‑Jong Kim (Power Cable Research Center, Korea Electrotechnology Research Institute)
  • 투고 : 2023.07.28
  • 심사 : 2023.08.11
  • 발행 : 2023.11.01
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초록

Demand and necessity for eco-friendly offshore wind farms have been increasing. Research on submarine cables is constantly being considered for a reliable and stable power transmission. This study aimed to evaluate the thermal aging characteristic of submarine cables inside the J-tube of offshore wind farms. In this study, a submarine cable was set in three sections: The first is the part exposed to the air above the sea level at high temperature. The second is the section exposed to repeated temperature fluctuation as the sea level rises and falls. The third is the part submerged at low temperature below the sea level. Aged samples were tested by using the method of electrical evaluation to obtain insulation characteristics. The experimental results show that the dielectric breakdown of the sample with temperature fluctuation was 7% lower than the sample with a constant temperature; thereby, demonstrating that the section where the temperature fluctuation occurred in the submarine cables was weaker than the other. The sections of submarine cable with temperature fluctuations are believed as a weak point during operation; therefore, this part should be monitored preferentially.

키워드

과제정보

이 논문은 2023년도 정부(산업통상자원부)의 재원으로 한국에너지기술평가원의 지원을 받아 수행된 연구임(20213000000020, 해상풍력단지 해저 전력망 구축을 위한 핵심기자재 및 평가 기술 개발).

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