• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2018.11a
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• pp.85-87
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• 2018

전 세계적으로 온실가스 배출 규제가 강화되고 있고 에너지 절감 및 환경오염 문제가 없는 재생에너지에 대한 관심이 높아지고 있다. 육상 전력을 공급받기 어려움 해양 구조물의 경우에는 배터리와 같은 에너지 저장장치 또는 재생에너지를 활용하여 독립 전원 시스템을 구성하게 된다. 해양에서 활용이 가능한 재생에너지로는 태양광, 풍력, 파력, 조력등이 있으며 이러한 자연 에너지를 활용하는 재생에너지 발전 시스템의 경우 환경의 영향을 많이 받게 되므로 안정적인 전력 생산에 어려움이 있다. 예를 들어 태양광 발전 시스템의 경우 일조량에 따라 발전량이 결정되고, 풍력 발전 시스템의 경우 풍속 및 풍향이 발전량에 영향을 미친다. 따라서 독립전원시스템에서 태양광-풍력-파력의 멀티소스를 갖는 하이브리드 발전 시스템을 구성하여 기상상태에 따른 발전량을 보완가능하게 구성하면 보다 안정적으로 전력을 얻을 수 있다. 본 연구에서는 항만 및 협수로를 항해하는 선박 안전을 위해 설치된 등부표에 적용하는 해상하이브리드발전시스템을 설계하고 실증을 통해 하이브리드 발전시스템의 발전 특성을 확인한다.

• 한국신재생에너지학회:학술대회논문집
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• 2006.11a
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• pp.134-137
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• 2006

Tidal power can use conventional technology to extract energy from the tides. It is usually best deployed in areas where there i s a high tical range which includes Western and Southern coastal areas in Korea. However, to extract tical energy, a barrage across an estuary or a bay is to be constructed that is now very hard due to severe environmental impact on local estuary. The recent technology of application of tidal stream provides a new window to extract power minimizing the adverse environmental impact Tidal stream technology which directly exploits these currents is relatively new but is presently generating considerable interest Turbine rotors can be used to extract energy from the flows. Prototype devices currently on test in the UK include the 300kW SeaFlow turbine. In this paper, the recent technology and research on ocean tical stream power are addressed

• Journal of Navigation and Port Research
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• v.32 no.5
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• pp.415-423
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• 2008

The purpose of this study is to show a course development of the marine leisure sport policy in Korea. The preceding researches and the analysis on the actual conditions on marine leisure sport in Korea were conducted for this research. And analyzing the obstacle and development factors in marine leisure sport, the conclusions intended to provide the preliminary data on the marine leisure industry are as follows: First, as policy-based problems, there will be needs for the public perception improvement in the marine culture caused by the lack of publicity, the reflection reinforcement of the national policy on the marine leisure industry, the prevention of the overlapping investment for the national resources development in the marine industry and marine leisure sport complexes, and the reinforcement of the close networks with the developed countries. Second, as human-based problems, there will be needs for the new organization of the specialty agencies involved in the marine leisure industry field, the nurture of the capable specialists and the reinforcement and nurture of TF team for the infrastructure industry. Third, as facility-based problems, there appeared to be the expansion of the SOC related to the marine leisure, the ease of the laws and regulations for the development of the marine leisure facilities, the prevention of the thoughtless development caused by close cooperation system with the local government. Fourth, as law and institution-based problems, there appeared to be the abolishment of the regulation-centered laws involved in them, the prevention of the legal and institutional confusion caused by policy confusion. Fifth, as industry-based problems, there must be the expansion of the domestic supply and demand, the reinforcement of parts industry and the nurture of the license system for the mechanics on the vessels and the engines.

• Journal of the Korean Society for Marine Environment & Energy
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• v.7 no.3
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• pp.111-115
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• 2004

In this manuscript the characteristics of marine environmental sciences and technology was depicted in the aspect of marine biotechnology, and the prospect of Korean society of Marine Environmental Engineering were suggested. Firstly definitions and main features of marine biotechnology and marine environmental sciences and technology were mentioned, and the long-term trends of environmental sciences and technology and the role of marine biotechnology to contribute for the development of marine environmental science and technology were described. The present state of the art for domestic research activities in the fields of marine environmental science and technology was reviewed and future directions for developing the Korean Society of Marine Environmental Engineering were suggested and discussed through understanding the present problems and solving those problems.

• Proceedings of KOSOMES biannual meeting
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• 2006.05a
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• pp.231-243
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• 2006

• Proceedings of KOSOMES biannual meeting
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• 2002.10a
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• pp.73-85
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• 2002

• Coastal and Ocean
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• v.6 no.1
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• pp.20-35
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• 2013

• Journal of Advanced Marine Engineering and Technology
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• v.33 no.8
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• pp.1226-1231
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• 2009

In this paper, a solar-wind hybrid system is decsribed for Stand-Alone(SA) power generation system. Mostly SA power generation system for ocean facilities composes a solar system. Normally, the output power of solar system is decreased with weather condition as cloudy and rainy. Solar-wind hybrid system can be operated as complement system each other. In this paper, the characteristic simulation of solar and wind is performed by LabVIEW. The hybrid power generation system is designed according to simulation results, and is tested for checking the complement characteristic.

• Journal of Advanced Marine Engineering and Technology
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• v.35 no.6
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• pp.835-841
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• 2011

Wave power generation systems operated in the ocean, has been developed as large power and grid power connection systems in general. However, small wave power generation systems offer operational efficiency for the lighted (navigation aids) buoy. They simply adopts a full-wave rectification for charging battery (direct connection method). In this paper, a wave power controller based on a booster converter is developed by considering a characteristic of the wells turbine. Both direct connection and booster converter power controller is designed and tested to compare the characteristics. Experiments demonstrate that the output of the proposed controller has improved the characteristic of output power, when generator output voltage is low.

• Proceedings of KOSOMES biannual meeting
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• 2017.04a
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• pp.134-134
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• 2017