Computational Investigations of Small Deploying Tabs and Flaps for Aerodynamic Load Control
C. P. van Dam,Raymond Chow,Jose R. Zayas,Dale E. Berg +3 more
- Vol. 75, Iss: 1, pp 012027
TLDR
In this paper, the authors investigated the effect of microtabs and microflaps on wind turbine rotors and their time-dependent effect on sectional lift, drag, and pitching moment.Abstract:
The cost of wind-generated electricity can be reduced by mitigating fatigue loads acting on the blades of wind turbine rotors. One way to accomplish this is with active aerodynamic load control devices that supplement the load control obtainable with current full-span pitch control. Techniques to actively mitigate blade loads that are being considered include individual blade pitch control, trailing-edge flaps, and other much smaller trailing-edge devices such as microtabs and microflaps. The focus of this paper is on the latter aerodynamic devices, their time-dependent effect on sectional lift, drag, and pitching moment, and their effectiveness in mitigating high frequency loads on the wind turbine. Although these small devices show promise for this application, significant challenges must be overcome before they can be demonstrated to be a viable, cost-effective technology.read more
Citations
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Journal ArticleDOI
Review of state of the art in smart rotor control research for wind turbines
TL;DR: A review of the state of the art and present status of active aeroelastic rotor control research for wind turbines is presented in this paper, where the authors discuss the potential of load reduction using smart rotor control concepts.
Journal ArticleDOI
State-of-the-art in wind turbine control: Trends and challenges
Jackson G. Njiri,Dirk Söffker +1 more
TL;DR: In this paper, a review of various control strategies that are used in wind turbine systems, both in low and high wind speed regions focusing primarily on multi-objective control schemes is presented.
ReportDOI
Active load control techniques for wind turbines.
TL;DR: In this paper, the authors provide an overview on the current state of wind turbine control and introduce a number of active techniques that could be potentially used for control of wind turbines blades.
Journal ArticleDOI
A review on wind turbine control and its associated methods
TL;DR: In this paper, a literature review of wind turbine control is presented dealing with the main wind energy control methods, which can be used as a starting point for new researches on WT control that can be decisive to energetic sustainability.
Journal ArticleDOI
An overview of active load control techniques for wind turbines with an emphasis on microtabs
TL;DR: In this article, the benefits and challenges of utilizing active flow control (AFC) for wind turbines are discussed, and the microtab system is discussed in further detail including recent experimental results demonstrating its effectiveness in a three-dimensional environment.
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