Design and Research of Smart Blades Based on Load Optimization and Power Control

Abstract:

Wind energy is the fastest growing source of energy nowadays. The significant growth of size and weight over the past few decades increase the cost of energy (COE) of wind turbines. Optimization of rapid fluctuating loads, which arise from a variety of sources including turbulence, tower shadow, wind shear and yawed flow, can lower the COE. In this article, the “Active Blade”, changing the local airfoil contour driven by a built-in structure to modify the blade’s aerodynamic performance, designed as a solution to reduce fatigue loads on wind turbines. In this approach, aerodynamic load control devices, combined with sensor, controller and actuator, dynamically control the blade loads. The structure is simple with good high frequency fast response performance. The overload stall protection effect is obvious and fast.

• Periodical: Applied Mechanics and Materials (Volume 654)
• Pages: 229-232
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.654.229
• Online since: October 2014
• Authors: Pei Cai*, Bing Tang Yang
• Keywords: Actuator, Aerodynamic Performance, Airfoil Contour, Wind Turbine (WT)

References

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