Results 121 to 130 of about 16,244 (234)

Optimal control of the heave motion of marine cable subsea-unit systems [PDF]

, 1995
One of the key problems associated with subsea operations involving tethered subsea units is the motions of support vessels on the ocean surface which can be transmitted to the subsea unit through the cable and increase the tension.
Huang, S., Vassalos, D.
core  

Exploring Motion Stability of a Novel Semi-Submersible Platform for Offshore Wind Turbines

Energies
The stability of offshore floating wind turbine foundation platforms is a fundamental requirement for the efficiency and safety of wind power generation systems.
Hongxu Zhao, Xiang Wu, Zhou Zhou
doaj   +1 more source

Study on Mooring Design and Hydrodynamic Performance of Floating Offshore Wind Turbines with CFRP Mooring Lines

Buildings
To address the issues of traditional mooring lines, such as high self-weight, low strength, and poor durability, Carbon-Fiber-Reinforced Polymer (CFRP) was investigated as a material for mooring lines of offshore floating wind turbines, aiming to achieve
Yaqiang Yang, Riwei Xi, Mingxin Li, Jianzhe Shi, Yongzheng Li, Xin Wang, Wentao Shang, Hongming Li   +7 more
doaj   +1 more source

Research on the Blades and Performance of Semi-Submersible Wind Turbines with Different Capacities

Energies
With the gradual increase in the maturity of wind energy technology, floating offshore wind turbines have progressively moved from small-capacity demonstrations to large-capacity commercial applications.
Jiaping Cui, Zhigang Cao, Pin Lyu, Huaiwu Peng, Quankun Li, Ruixian Ma, Yingming Liu   +6 more
doaj   +1 more source

Control of Floating Offshore Wind Turbines

DENSE Thematic Workshop - University of Manchester - DC4 6-month Work Progress ...
openaire   +1 more source

Simulation of a rectifier malfunction on an offshore wind system with HVDC transmission [PDF]

, 2015
A new integrated mathematical model for the simulation of an offshore wind system having a rectifier input voltage malfunction at one phase is presented in this paper. The mathematical model considers an offshore variable-speed wind turbine on a floating
Melicio, Rui
core  

Fault tolerant control design of floating offshore wind turbines [PDF]

, 2016
This work is concerned with active vibration mitigation in wind turbines (WT) but not through the use of specifically tailored devices. Instead, a general control scheme is designed for torque and pitch controllers based on a super-twisting algorithm ...
Acho Zuppa, Leonardo, Rodellar Benedé, José, Tutivén Gálvez, Christian, Vidal Seguí, Yolanda   +3 more
core  

Optimized Floating Offshore Wind Turbine Substructure Design Trends for 10–30 MW Turbines in Low-, Medium-, and High-Severity Wave Environments

Designs
Floating offshore wind is a promising renewable energy source, as 60% of the wind resources globally are found at depths requiring floating technologies, it minimizes construction at sea, and provides opportunities for industrialization given a lower ...
Joseph Habib Dagher, Andrew J. Goupee, Anthony M. Viselli   +2 more
doaj   +1 more source

Floating wind turbine system [PDF]

, 2009
A floating wind turbine system with a tower structure that includes at least one stability arm extending therefrom and that is anchored to the sea floor with a rotatable position retention device that facilitates deep water installations.
Viterna, Larry A.
core   +1 more source

Design of Floating Installation Vessel for Offshore Installation of Floating Offshore Wind Turbines

International Marine Design Conference
The installation of the present wind farms Hywind Scotland and Hywind Tampen are both carried out by towing the fully assembled wind turbine from the assembly site in the Norwegian fjords to the final offshore site. In the present study an alternative installation method is proposed where the fully assembled tower is transported to the site on the ...
Karl H. Halse, Sunghun Hong, Behfar Ataei, Ting Liu, Shuai Yuan, Hans P. Hildre   +5 more
openaire   +1 more source