Abstract
The load reduction of the wind turbine through the use of flaps actuated through novel mechanical network is studied. The aeroservoelastic model of the wind turbine couples the composite beam description for blades and tower to the unsteady vortex-lattice method for the aerodynamics. The trailing-edge flap dynamics are incorporated to the wind turbine model to enable the use of mechanical network to control the flap rotation. A passive mechanical controller is proposed, which senses the relative angular velocity of the trailing-edge flap and generate the control torque. The mechanical controller is realised by passive components including springs, dampers and inerters in rotational form. The parameters of the mechanical components and flap configuration parameters are optimised by H∞ and H2 optimisation, respectively. It is shown that mechanical controllers exhibit marked reductions in blade root-bending moment, blade tip deflection and tower top fore-aft deflection in the presence of external disturbances, especially with the optimised flap configuration parameters.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
