Conference paper
Adaptive Backstepping Control of Lightweight Tower Wind Turbine
Department of Electrical Engineering, Technical University of Denmark1
Automation and Control, Department of Electrical Engineering, Technical University of Denmark2
Norwegian University of Science and Technology3
Department of Applied Mathematics and Computer Science, Technical University of Denmark4
Dynamical Systems, Department of Applied Mathematics and Computer Science, Technical University of Denmark5
Vestas Wind Systems AS6
This paper investigates the feasibility of operating a wind turbine with lightweight tower in the full load region exploiting an adaptive nonlinear controller that allows the turbine to dynamically lean against the wind while maintaining nominal power output. The use of lightweight structures for towers and foundations would greatly reduce the construction cost of the wind turbine, however extra features ought be included in the control system architecture to avoid tower collapse.
An adaptive backstepping collective pitch controller is proposed for tower point tracking control, i.e. to modify the angular deflection of the tower with respect to the vertical axis in response to variations in wind speed. The controller is shown to guarantee asymptotic tracking of the reference trajectory.
The performance of the control system is evaluated through deterministic and stochastic simulations including an extreme wind gust event, and the feasibility of stabilizing the tower position while maintaining the rated power output is shown.
Language: | English |
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Publisher: | IEEE |
Year: | 2015 |
Pages: | 3058-3065 |
Proceedings: | 2015 American Control Conference |
Series: | American Control Conference |
ISBN: | 1479917737 , 1479986844 , 1479986852 , 9781479917730 , 9781479986842 and 9781479986859 |
ISSN: | 23785861 and 07431619 |
Types: | Conference paper |
DOI: | 10.1109/ACC.2015.7171802 |
ORCIDs: | Galeazzi, Roberto , Niemann, Hans Henrik and Poulsen, Niels Kjølstad |
Aerodynamics Generators Poles and towers Rotors Torque Wind speed Wind turbines adaptive backstepping collective pitch controller adaptive control adaptive nonlinear controller construction cost reduction control nonlinearities control system architecture deterministic simulations full load region lightweight tower wind turbine nonlinear control systems poles and towers power generation control reference trajectory asymptotic tracking stochastic simulations tower angular deflection tower point tracking control trajectory control vertical axis wind power plants wind turbines