• Journal of the Korean Society of Marine Environment & Safety
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• v.21 no.5
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• pp.583-590
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• 2015

Submarine cable installation is essentials for grid connection between existing power grid and newly produced electricity which will be from offshore wind farm in Southwest sea area of Korea. Especially, submarine cable route and protection method is designed in order to ensure the economical efficiency, workability and stability of submarine cable installation. On this paper, we will give the basic information about the submarine cable route and protection method of offshore wind farm which will be built in Southwest sea area of Korea. For this, we have a numerical simulation at high and low tide based on the third-generation wave model SWAN(Simulating WAves Nearshore) using the long term wave data from Korea Institute of Ocean Science and Technology(KIOST). The results of the study, year mean Hs is 1.03m, Tz is 4.47s and dominant wave direction is NW and SSW When the incident wave direction is NW(Hs: 7.0 m, Tp: 11.76s), the distribution of shallow water design wave height Hs was calculated about 4.0~5.0m at high tide and 2.0~3.0m at low tide. When the incident wave direction is SSW(Hs: 5.84 m, Tp: 11.15s), the distribution of shallow water design wave height Hs was calculated about 3.5~4.5m at high tide and 1.5~2.5m at low tide. The wave direction on a dominant influence in the section of longitude UTM 249749~251349(about 1.6 km) and UTM 251549~267749(about 16.2 km) in the submarine cable route are each NW and SSW. Prominently, wave focusing phenomenon appears between Wi-do and Hawangdeung-do, in this sea area is showing a relatively high wave hight than the surrounding sea areas.

• Proceedings of the KIEE Conference
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• 2008.11a
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• pp.394-396
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• 2008

본 논문에서는 앞으로 전력시장 다변화 다각화 추세에 맞춰 현재 진행 중인 제주-육지간 2차 직류연계 사업뿐만 아니라 다양한 직류송전의 활용에 대비하여 HVDC 해저케이블에 대한 개념 정립 및 현재 운영중인 설비와 건설예정사업에 대한 소개를 통해 이해를 돕고자 한다.

• Proceedings of KOSOMES biannual meeting
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• 2017.04a
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• pp.91-91
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• 2017

• Proceedings of the KIEE Conference
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• 2008.07a
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• pp.325-328
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• 2008

본 논문은 '해남-제주간 연계선로 중 지중에 매설된 육상 구간의 HVDC 전력케이블의 정확한 매설경과지 정보 획득'을 목적으로 '해저케이블 탐지 시스템'을 HVDC 전력케이블 육상구간에 적용하여 HVDC 시스템 연차점검 기간 중 #1, #2 연계선로 휴전기간을 이용하여 육상구간 4.2km 2회선 전 구간에 대하여 매설위치 탐지를 실시한 결과를 분석하였다.

• JOURNAL OF ELECTRICAL WORLD
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• no.12 s.48
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• pp.65-74
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• 1980

• JOURNAL OF ELECTRICAL WORLD
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• s.419
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• pp.28-35
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• 2011

• JOURNAL OF ELECTRICAL WORLD
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• s.344
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• pp.54-75
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• 2005

• JOURNAL OF ELECTRICAL WORLD
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• s.285
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• pp.46-50
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• 2000

• Proceedings of the KIEE Conference
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• 2008.11a
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• pp.400-402
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• 2008

제주도의 지속적인 전력수요 증가에 능동적으로 대처하고자 육지-제주간 초고압 직류연계(HVDC) 추가 건설사업이 추진 중에 있다. 초고압 직류 송전계통을 신뢰성 있게 운전하기 위해 양측 변환소에 설치될 제어 및 감시계통간 정보전송로의 화보는 매우 중요하다. 본 논문에서는 고품질, 대용량화 되어가는 전력데이터를 안정적으로 전송하고 해저케이블 고장감시 및 향후 정보 통신 분야의 부가가치 창출을 위한 최적의 해저광통신케이블을 소개하고자 한다.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.26 no.1
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• pp.1-7
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• 2013

Structural design and analysis of a coiling arm unloading machine for submarine cable have been originally conducted in this study. Three-dimensional CAD modeling process is practically applied for the structural design in detail. Finite element method(FEM) and multi-body dynamics(MBD) analyses are also used to verify the safety and required motions of the designed coiling arm structure. The effective moving functions of the designed coiling arm with respect to rotational and radial motions are achieved by adopting bearing-roller mechanical parts and hydraulic system. Critical design loading conditions due to its self weight, carrying cables, offshore wind, and hydraulic system over operation conditions are considered for the present structural analyses. In addition, possible inclined ground conditions for the installation of the designed coiling arm are also considered to verify overturn stability. The present hydraulic type coiling arm system is originally designed and developed in this study. The developed coiling arm has been installed at a harbor, successfully tested its operational functions, and finished practical unloading mission of the submarine cable.