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A Novel Composite Pitch Control Scheme for Floating Offshore Wind Turbines with Actuator Fault Consideration.
- Source :
- Journal of Marine Science & Engineering; Dec2023, Vol. 11 Issue 12, p2272, 23p
- Publication Year :
- 2023
-
Abstract
- It is of great importance to simultaneously stabilize output power and suppress platform motion and fatigue loads in floating offshore wind turbine control systems. In this paper, a novel composite blade pitch control scheme considering actuator fault is proposed based on an augmented linear quadratic regulator (LQR), a fuzzy proportional integral (PI) and an adaptive second-order sliding-mode observer. Collective pitch control was achieved via the fuzzy PI, while individual pitch control was based on the augmented LQR. In the case of actuator fault, an adaptive second-order sliding-mode observer was constructed to effectively eliminate the need for the upper bound of unknown fault derivatives and suppress the chattering effect. This paper conducted co-simulations based on FAST (Fatigue, Aerodynamics, Structures, and Turbulence) and MATLAB/Simulink to verify the effectiveness and superiority of the proposed scheme under different environmental conditions. It is shown that platform roll was reduced by approximately 54% compared to that under PI control. For the tower fore–aft moment, load reductions of 45% or more were achievable. The proposed scheme can greatly reduce the pitch and roll of the floating platform and loads in the windward direction of the wind turbine. [ABSTRACT FROM AUTHOR]
- Subjects :
- WIND turbines
ACTUATORS
FUZZY integrals
ADAPTIVE fuzzy control
AERODYNAMICS
Subjects
Details
- Language :
- English
- ISSN :
- 20771312
- Volume :
- 11
- Issue :
- 12
- Database :
- Complementary Index
- Journal :
- Journal of Marine Science & Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 174439802
- Full Text :
- https://doi.org/10.3390/jmse11122272