Rotor Thrust Control for Large-Scale Wind Turbine in Near-Rated Wind Speed Region

To limit the maximum rotor thrust in the near-rated wind speed region, this paper proposes a novel rotor thrust control scheme for large-scale wind turbines operating. It contains a rotor thrust identificator, a rotor thrust control loop, and a feedforward blade pitch controller. A simplified blade...

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Bibliographic Details
Published in:IEEE transactions on sustainable energy Vol. 16; no. 4; pp. 2828 - 2838
Main Authors: Li, Jiaqi, Fan, Siyuan, Geng, Hua
Format: Journal Article
Language:English
Published: Piscataway IEEE 01.10.2025
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Accuracy
Aerodynamics
Algorithm design and analysis
Bending moments
blade element momentum theory
Blades
Dynamic inversion
Feedforward control
load mitigation
Momentum theory
near-rated
nonlinear dynamic inversion
Nonlinear dynamics
Offshore installations
Out of plane bending
peak shaving
Pitch (inclination)
Real-time systems
Rotors
Thrust control
Torque
Turbines
Wind power
Wind speed
Wind turbine
Wind turbines
ISSN:1949-3029, 1949-3037
Online Access:Get full text
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Summary:To limit the maximum rotor thrust in the near-rated wind speed region, this paper proposes a novel rotor thrust control scheme for large-scale wind turbines operating. It contains a rotor thrust identificator, a rotor thrust control loop, and a feedforward blade pitch controller. A simplified blade model is first proposed to achieve rotor thrust identification. Based on blade element momentum theory, the rotor thrust can be identified by the blade root out-of-plane bending moments. The rotor thrust control loop is then designed with the identified rotor thrust. Then, a feedforward blade pitch saturator is designed, called Nonlinear Dynamic Inversion based minimum Pitch Saturator (NDI-PS). It is realized by nonlinear dynamic inversion of the thrust coefficient curve. The simulation results exhibit outstanding performance of the proposed control scheme. Compared with existing controllers of NREL and Goldwind, power output is increased by 1% to 1.5%, while blade root and tower bottom loads are mitigated by about 4% .
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ISSN:1949-3029
1949-3037
DOI:10.1109/TSTE.2025.3570055