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Two-Degree-of-Freedom Active Vibration Control of a Prototyped “Smart” Rotor

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7 Author(s)
Jan-Willem van Wingerden ; Delft Center for System and Control, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Delft, The Netherlands ; Anton Hulskamp ; Thanasis Barlas ; Ivo Houtzager
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This paper studies the load reduction potential of a prototyped “smart” rotor. This is, a rotor where the blades are equipped with a number of control devices that locally change the lift profile on the blade, combined with appropriate sensors and controllers. Experimental models, using dedicated system identification techniques, are developed of a scaled rotating two-bladed “smart” rotor of which each blade is equipped with trailing-edge flaps and strain sensors. A feedback controller based on H-loop shaping combined with a fixed-structure feedforward control are designed that minimizes the root bending moment in the flapping direction of the two blades. We evaluated the performance using a number of different realistic load scenarios. We show that with appropriate control techniques the variance of the load signals can be reduced up to 90%.

Published in:

IEEE Transactions on Control Systems Technology  (Volume:19 ,  Issue: 2 )