Structural control methods are a promising way to improve the dynamic response of offshore wind turbines. In this study, the effectiveness of passive tuned mass damper (TMD) and hybrid mass damper (HMD) control is examined for suppressing the vibration in a monopile offshore wind turbine subjected to a combination of wind, wave, and seismic loads. A high-fidelity wind turbine model is established based on the multi-body dynamics simulation code SIMPACK. A reduced-order model of the wind turbine is, then, extracted from input-output time-domain response data, which is used to design an HMD controller using the H∞ loop shaping approach. The controller is, then, applied in the high-fidelity multi-body model of the wind turbine, and an additional control force is applied using feedback from the displacement acceleration at the tower top. The performance of the passive TMD and HMD control systems is examined and compared in terms of the suppression of tower-top displacements under normal operating and parked conditions. The results revealed that the HMD control system can better reduce the tower-top displacement as compared to the passive TMD system before and during earthquakes, albeit at the expense of high input control power and large TMD displacements. However, the two control systems have a negative impact on the dynamic response of tower after the earthquake. Moreover, the investigation of controller gains indicated that the vibration suppression effect of HMD improves with the increase in control power, leading to larger TMD strokes.
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July 2020
Research Article|
August 24 2020
Hybrid vibration control of offshore wind turbines under multiple external excitations
Shuangyi Xie;
Shuangyi Xie
1
College of Mechanical Engineering, Chongqing University of Technology
, Chongqing 400054, People's Republic of China
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Jiao He
;
Jiao He
a)
2
School of Mechanical and Power Engineering, Chongqing University of Science and Technology
, Chongqing 401331, People's Republic of China
a)Author to whom correspondence should be addressed: [email protected]
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Chenglin Zhang;
Chenglin Zhang
3
Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Sciences
, Shanghai 200092, People's Republic of China
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Xin Jin
;
Xin Jin
4
College of Mechanical Engineering, Chongqing University
, Chongqing 400044, China
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Jian Gao
Jian Gao
5
Beijing Institute of Precision Mechatronics and Controls
, Beijing 100076, China
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a)Author to whom correspondence should be addressed: [email protected]
J. Renewable Sustainable Energy 12, 043304 (2020)
Article history
Received:
February 02 2020
Accepted:
July 28 2020
Citation
Shuangyi Xie, Jiao He, Chenglin Zhang, Xin Jin, Jian Gao; Hybrid vibration control of offshore wind turbines under multiple external excitations. J. Renewable Sustainable Energy 1 July 2020; 12 (4): 043304. https://doi.org/10.1063/5.0003394
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