수중체 형상에 따른 수중 조류발전장치 운동성능
Dynamic Response of Tidal Current Power Device with Various Structural Configurations
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With the increased focus on renewable energy in response to the global warming problem, tidal current power (TCP),one of the ocean energy resources, is acknowledged as an alternative energy source because of its high energy density, predictabilityand reliability. TCP devices are classified into gravity base type, pile fixed type, and floating type. Among them, the floating type canbe applied without any limitation of water depth and has a simplified supporting structure. Since the behavior of the floater has asignificant effect on the total power production rate, it is essential to minimize the power production loss and optimize the systemefficiency. In order to maintain the optimal incidence angle of the flow to the turbine and to support the buoys, the motion response ofthe tidal power system was analyzed. DNV Wadam V 4.8-01 and OrcaFlex 10.1a were respectively used for the frequency and timedomain analyses. The designed TCP system had pitching and yawing fluctuation values within about 0.5°.
Abstract
With the increased focus on renewable energy in response to the global warming problem, tidal current power (TCP),one of the ocean energy resources, is acknowledged as an alternative energy source because of its high energy density, predictabilityand reliability. TCP devices are classified into gravity base type, pile fixed type, and floating type. Among them, the floating type canbe applied without any limitation of water depth and has a simplified supporting structure. Since the behavior of the floater has asignificant effect on the total power production rate, it is essential to minimize the power production loss and optimize the systemefficiency. In order to maintain the optimal incidence angle of the flow to the turbine and to support the buoys, the motion response ofthe tidal power system was analyzed. DNV Wadam V 4.8-01 and OrcaFlex 10.1a were respectively used for the frequency and timedomain analyses. The designed TCP system had pitching and yawing fluctuation values within about 0.5°.
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