Effect of Smart Rotor Control Using a Deformable Trailing Edge Flap on Load Reduction under Normal and Extreme Turbulence

Wei Yu, Ming Ming Zhang and Jian Zhong Xu
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Wei Yu: Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
Ming Ming Zhang: Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
Jian Zhong Xu: Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China

Energies, 2012, vol. 5, issue 9, 1-19

Abstract: This paper presents a newly developed aero-servo-elastic platform for implementing smart rotor control and shows its effectiveness with aerodynamic loads on large-scale offshore wind turbines. The platform was built by improving the FAST/Aerodyn codes with the integration of an external deformable trailing edge flap controller in the Matlab/Simulink software. Smart rotor control was applied to an Upwind/NREL 5 MW reference wind turbine under various operating wind conditions in accordance with the IEC Normal Turbulence Model (NTM) and Extreme Turbulence Model (ETM). Results showed that, irrespective of whether the NTM or ETM case was considered, aerodynamic load in terms of blade flapwise root moment and tip deflection were effectively reduced. Furthermore, the smart rotor control also positively affected generator power, pitch system and tower load. These results laying a foundation for a future migration of the “smart rotor control” concept into the design of large-scale offshore wind turbines.

Keywords: smart rotor control; deformable trailing edge flap; load; turbulent wind; PID controller (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2012
References: View complete reference list from CitEc
Citations: View citations in EconPapers (9)

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