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Article

Dynamic Stability of an Ocean Current Turbine System

1
Department of Mechanical Engineering, Kun Shan University and Green Energy Technology Research Centre (GETRC), Tainan 710303, Taiwan
2
Department of Marine Environment and Engineering, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
3
Marine Science and Information Research Center, National Academy of Marine Research, Kaohsiung 80661, Taiwan
*
Author to whom correspondence should be addressed.
J. Mar. Sci. Eng. 2020, 8(9), 687; https://doi.org/10.3390/jmse8090687
Received: 8 July 2020 / Revised: 1 September 2020 / Accepted: 1 September 2020 / Published: 6 September 2020
(This article belongs to the Special Issue Waves and Ocean Structures)
This paper presents a theoretical solution for the dynamic stability of the ocean current turbine system developed in Taiwan. This system is tethered to the sea floor and uses the Kuroshio Current to produce electricity. To maintain the performance of the turbine system in the presence of the Kuroshio Current, the stability of the surfaced turbine needs to be considered. The proposed system is composed of a turbine, a buoyance platform, a traction rope, and a mooring foundation. The two-dimensional theoretical solutions treat the turbine as a rigid body with a movable structure that is moored with two cables. In this model, the gravity, buoyancy, and drag force generated by the wave on the turbine structure are considered. In addition, an analytical solution is proposed for the general system. Finally, the effects of the wave on the pitch motion and dynamical stability of the ocean current turbine system are investigated. View Full-Text
Keywords: stability; ocean current power system; surface type; buoyance platform; mooring foundation stability; ocean current power system; surface type; buoyance platform; mooring foundation
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MDPI and ACS Style

Lin, S.-M.; Chen, Y.-Y.; Hsu, H.-C.; Li, M.-S. Dynamic Stability of an Ocean Current Turbine System. J. Mar. Sci. Eng. 2020, 8, 687. https://doi.org/10.3390/jmse8090687

AMA Style

Lin S-M, Chen Y-Y, Hsu H-C, Li M-S. Dynamic Stability of an Ocean Current Turbine System. Journal of Marine Science and Engineering. 2020; 8(9):687. https://doi.org/10.3390/jmse8090687

Chicago/Turabian Style

Lin, Shueei-Muh; Chen, Yang-Yih; Hsu, Hung-Chu; Li, Meng-Syue. 2020. "Dynamic Stability of an Ocean Current Turbine System" J. Mar. Sci. Eng. 8, no. 9: 687. https://doi.org/10.3390/jmse8090687

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