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Miao Li, Hao Li and Yang Wen
A new type of spherical node was used to design a laboratory-scale prototype of a six-leg lattice of steel tubes and concrete for application as a wind turbine tower. Repeated load tests were performed on the prototype tower for several weeks to evaluate...
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Tianhui Fan, Jianhu Fang, Xinkuan Yan and Yuan Ma
The floating offshore wind turbine provides a feasible solution for the development of renewable ocean energy. However, the sizeable rotor diameter of the wind turbine results in large wind heeling moments and pitch amplitude. It will increase the struct...
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Wenxiang Yang, Yaozhen Han, Ronglin Ma, Mingdong Hou and Guang Yang
The floating platform motion of an offshore wind turbine system can exacerbate output power fluctuations and increase fatigue loads. This paper proposes a new scheme based on a fast second-order sliding mode (SOSM) control and an adaptive super-twisting ...
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Shuang Liu, Yaozhen Han, Ronglin Ma, Mingdong Hou and Chao Kang
It is of great importance to simultaneously stabilize output power and suppress platform motion and fatigue loads in floating offshore wind turbine control systems. In this paper, a novel composite blade pitch control scheme considering actuator fault is...
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Brendan Saunders and Ryozo Nagamune
Floating offshore wind farm control via real-time turbine repositioning has a potential in significantly enhancing the wind farm efficiency. Although the wind farm power capture increase by moving platforms with aerodynamic force has been verified in a r...
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Haoran Song and Yingna Li
Transmission lines have the characteristics of being tall tower structures with a large span distribution of transmission lines that are sensitive to external loads such as wind and ice, and belong to strong, nonlinear, complex, rigid-flexible coupling s...
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Daoyong Wang, Bo Song, Shuo Diao, Chao Wang and Chenhu Lu
Global warming makes many countries pay more attention to the use of wind energy. With the development of offshore wind power generation, the offshore wind turbine tower is facing the dual effects of marine corrosion and earthquake. The purpose of this p...
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Carlos Serrano, Jesus-Enrique Sierra-Garcia and Matilde Santos
Floating offshore wind turbines (FOWTs) are systems with complex and highly nonlinear dynamics; they are subjected to heavy loads, making control with classical strategies a challenge. In addition, they experience vibrations due to wind and waves. Furthe...
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Manuel Lara, Juan Garrido, Mario L. Ruz and Francisco Vázquez
This paper deals with the control problems of a wind turbine working in its nominal zone. In this region, the wind turbine speed is controlled by means of the pitch angle, which keeps the nominal power constant against wind fluctuations. The non-uniform ...
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Haoming Liu, Suxiang Yang, Wei Tian, Min Zhao, Xiaoling Yuan and Bofeng Xu
The operational environment of offshore wind turbines is much more complex than that of onshore wind turbines. Facing the persistent wind and wave forces, offshore wind turbines are prone to vibration problems, which are not conducive to their long-term ...
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