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Active Vibration Suppression of a Flexible Blade Element Using Magnetorheological Layer Patch-Electromagnetic Actuator

Fevzi Çakmak Bolat, Selim Sivrioğlu


This study proposes a new active control structure to suppress vibrations of a small-scale wind turbine blade with magnetorheological fluid (MR) patch actuated by an electromagnet. An interaction model of the MR patch electromagnetic actuator was derived and a force characterization was realized. A linear quadratic gaussian (LQG) controller was designed using the state space model of the flexible blade element. The LQG controller was experimentally realized by means of the blade structure under the impact load and steady state aerodynamic load conditions. The results of experiments showed that the MR patch is effective for suppressing vibrations of the blade structure.   

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