Wind and Wave-Induced Vibration Reduction Control for Floating Offshore Wind Turbine Using Delayed Signals

• Published in: Journal of marine science and engineering Vol. 12; no. 7; p. 1113
• Main Authors: Yan, Shouxiang, Wang, Yilong, Pang, Fengbin, Zhang, Wei, Zhang, Bao-Lin
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.07.2024
• Subjects: Active control; Alternative energy sources; Control algorithms; Control systems; Controllers; Design; Feedback; Feedback control; floating wind turbine; H-infinity control; Linear quadratic regulator; Marine energy; Offshore; Offshore energy sources; Pitch (inclination); Ships; State feedback; State space models; Systems stability; time delay; tuned mass damper; Turbine engines; Turbines; Vibration; Vibration control; Wind effects; Wind power; wind turbine system; Wind turbines
• ISSN: 2077-1312; 2077-1312
• DOI: 10.3390/jmse12071113

Active vibration control is a critical issue of the wind turbine in the field of marine energy. First, based on a three-degree-of-freedom wind turbine, a state space model subject to wind and wave loads is obtained. Then, a delayed state feedback control scheme is illustrated to reduce the vibration of platform pitch angle and tower top foreaft displacement, where the control channel includes time-delay state signals. The designed controller’s existence conditions are investigated. The simulation results show that the delayed feedback H∞ controller can significantly suppress wind- and wave-induced vibration of the wind turbine. Furthermore, it presents potential advantages over the delay-free feedback H∞ controller and the classic linear quadratic regulator in two aspects: vibration control performance and control cost.