Journal ArticleDOI
Passive structural control of offshore wind turbines
TLDR
In this article, two independent, single degree of freedom (DOF) tuned mass-damper (TMD) devices are incorporated into a modified version of the aero-elastic code FAST (Fatigue, Aerodynamics, Structures and Turbulence).Abstract:
The application of control techniques to offshore wind turbines has the potential to significantly improve the structural response of these systems. A new simulation tool is developed that can be utilized to model passive, semi-active and active structural control systems in wind turbines. Two independent, single degree of freedom (DOF) tuned mass- damper (TMD) devices are incorporated into a modified version of the aero-elastic code FAST (Fatigue, Aerodynamics, Structures and Turbulence). The TMDs are located in the nacelle of the turbine model, with one TMD translating in the fore-aft direction, and the other in the side-side direction. The equations of motion of the TMDs are incorporated into the source code of FAST, yielding a more realistic system for modeling structural control in wind turbines than has previously been modeled. The stiffness, damping and commanded force of each TMD are controllable through the FAST-Simulink interface, and so idealizations of semi-active and active control approaches can be implemented. A parametric study is performed to determine the optimal parameters of a passive single DOF, fore-aft, TMD system in both a barge-type and monopile support structure. The wind turbine models equipped with TMDs are then simulated and the performance of these new systems is evaluated. The results indicate that passive control approaches can be used to improve the structural response of offshore wind turbines. The results also demonstrate the potential for active control approaches. Copyright © 2010 John Wiley & Sons, Ltd.read more
Citations
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Journal ArticleDOI
Fluid---structure interaction modeling of wind turbines: simulating the full machine
Ming-Chen Hsu,Yuri Bazilevs +1 more
TL;DR: In this article, the aerodynamics and fluid-structure interaction (FSI) simulation of wind turbines at full scale, and in the presence of the nacelle and tower, is presented.
Journal ArticleDOI
Validation of a FAST semi-submersible floating wind turbine numerical model with DeepCwind test data
TL;DR: In this paper, the authors presented the validation of a model constructed in the National Renewable Energy Laboratory (NREL) floating wind turbine simulator FAST with 1/50th-scale model test data for a semi-submersible floating turbine system.
Journal ArticleDOI
Using multiple tuned mass dampers to control offshore wind turbine vibrations under multiple hazards
Haoran Zuo,Kaiming Bi,Hong Hao +2 more
TL;DR: In this article, the authors proposed using multiple tuned mass dampers (MTMDs) to control vibrations from the fundamental and higher modes of offshore wind turbine tower under multiple hazards, i.e. under the combined wind, sea wave and earthquake excitations.
Journal ArticleDOI
Seismic response mitigation of a wind turbine tower using a tuned parallel inerter mass system
TL;DR: In this paper, the authors proposed a tuned parallel inerter mass system (TPIMS) for wind turbine tower seismic response mitigation, which consists of a tuned mass, a spring, and a parallel in-erter subsystem, of which the spring is used for tuning the mass and the inerters subsystem is set for vibration energy absorbing and dissipation.
Journal ArticleDOI
Modelling and optimization of a passive structural control design for a spar-type floating wind turbine
TL;DR: In this article, a structural control design for a spar-type floating wind turbine is proposed, where a tuned mass damper (TMD) is installed into the spar platform for effective load reduction.
References
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ReportDOI
Definition of a 5-MW Reference Wind Turbine for Offshore System Development
TL;DR: In this article, a three-bladed, upwind, variable speed, variable blade-pitch-to-feather-controlled multimegawatt wind turbine model developed by NREL to support concept studies aimed at assessing offshore wind technology is described.
Journal ArticleDOI
State of the art of structural control
TL;DR: In this paper, the authors review the recent and rapid developments in semi-active structural control and its implementation in full-scale structures, and present an alternative to active and hybrid control for structural vibration reduction.
Journal ArticleDOI
Supplemental energy dissipation: state-of-the-art and state-of-the- practice
T. T. Soong,Billie F. Spencer +1 more
TL;DR: In this paper, the state-of-the-art structural control systems for wind and seismic response of buildings and bridges are discussed, as well as their advantages and limitations in the context of seismic design and retrofit.
ReportDOI
Dynamics Modeling and Loads Analysis of an Offshore Floating Wind Turbine
TL;DR: In this paper, the authors describe the development, verification, and application of a comprehensive simulation tool for modeling coupled dynamic responses of offshore floating wind turbines, which is used to simulate the dynamic response of wind turbines.
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