Journal ArticleDOI
Individual Blade Pitch Control for Load Reduction
TLDR
The possibility of using pitch-regulated wind turbines as a way of reducing loads has been suggested many times over the years, but the idea has yet to gain full commercial acceptance as discussed by the authors.Abstract:
If a pitch-regulated wind turbine has individual pitch actuators for each blade, the possibility arises to send different pitch angle demands to each blade. The possibility of using this as a way of reducing loads has been suggested many times over the years, but the idea has yet to gain full commercial acceptance. There are a number of reasons why this situation may be set to change, and very significant load reductions can result. Copyright © 2002 John Wiley & Sons, Ltd.read more
Citations
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Journal ArticleDOI
Wind Turbine Control for Load Reduction
TL;DR: In this article, the authors present a review of techniques for the control of wind turbines during power production, including pitch control, torque control, and additional sensors such as accelerometers and load sensors.
Journal ArticleDOI
Wind turbine blade design
Peter Schubel,Richard Crossley +1 more
TL;DR: A detailed review of the current state-of-the-art for wind turbine blade design is presented in this paper, including theoretical maximum efficiency, propulsion, practical efficiency, HAWT blade design, and blade loads.
Journal ArticleDOI
Flow Structure and Turbulence in Wind Farms
TL;DR: In this article, the authors summarize current understanding of these flow phenomena through field studies, wind tunnel experiments, large-eddy simulations, and analytical modeling, emphasizing the most relevant features for wind farm design and operation.
Journal ArticleDOI
Further load reductions with individual pitch control
TL;DR: In this paper, an additional pitch action (dominated by the rotational frequency of the rotor) is calculated for each blade in order to minimize this load, which results in the near elimination of the dominant once-per-revolution (1P) peak in the out-of-plane load spectrum seen by the rotating components.
Journal ArticleDOI
Passive structural control of offshore wind turbines
TL;DR: 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).
References
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Journal ArticleDOI
The Design of closed loop controllers for wind turbines
TL;DR: In this paper, the authors review the design of algorithms for wind turbine pitch control and also for generator torque control in the case of variable speed turbines and discuss some recent and possible future developments.
Journal ArticleDOI
Two-Reaction Theory of Synchronous Machines
TL;DR: An extension of the 2-reaction theory of synchronous machines as developed by R. H. Park is given in this paper for machines having capacitance in the armature circuit.