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Micromachines 2018, 9(2), 80; https://doi.org/10.3390/mi9020080

Active Control of a Small-Scale Wind Turbine Blade Containing Magnetorheological Fluid

1
Department of Mechanical Engineering, Bayburt University, 69000 Bayburt, Turkey
2
Department of Mechanical Engineering, Gebze Technical University, 41400 Kocaeli, Turkey
*
Author to whom correspondence should be addressed.
Received: 23 December 2017 / Revised: 29 January 2018 / Accepted: 12 February 2018 / Published: 14 February 2018
(This article belongs to the Special Issue Selected Papers from ICMEAS 2017)
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Abstract

This research study proposes a new active control structure to suppress vibrations of a small-scale wind turbine blade filled with magnetorheological (MR) fluid and actuated by an electromagnet. The aluminum blade structure is manufactured using the SH3055 (Bergey Windpower Co. Inc., Norman, OK, USA) code numbered airfoil which is designed for use on small wind turbines. A dynamic interaction model between the MR fluid and the electromagnetic actuator is constructed to obtain a force relation. A detailed characterization study is presented for the proposed actuator to understand the nonlinear behavior of the electromagnetic force. A norm based multi-objective H2/H controller is designed using the model of the elastic blade element. The H2/H controller is experimentally implemented under the impact and steady state aerodynamic load conditions. The results of experiments show that the MR fluid- electromagnetic actuator is effective for suppressing vibrations of the blade structure. View Full-Text
Keywords: active vibration control; elastic blade; magnetorheological fluid; robust control active vibration control; elastic blade; magnetorheological fluid; robust control
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Bolat, F.C.; Sivrioglu, S. Active Control of a Small-Scale Wind Turbine Blade Containing Magnetorheological Fluid. Micromachines 2018, 9, 80.

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