Control of a horizontal axis wind turbine using H infinity control

An H infinity controller based on a linear model that reduces fatigue damage of a wind turbine is designed. It is important that the system be robust, especially at 1 omega /sub r/ and 3 omega /sub r/, which are the most prominent rotational disturbances which act on the system. In order to avoid ac...

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Bibliographic Details
Published in[Proceedings 1992] The First IEEE Conference on Control Applications pp. 117 - 122 vol.1
Main Authors Connor, B., Iyer, S.N., Leithead, W.E., Grimble, M.J.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1992
Subjects
Aerodynamics
Control systems
Equations
Frequency
H infinity control
Mathematical model
Open loop systems
Optimal control
Transfer functions
Wind turbines
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Summary:An H infinity controller based on a linear model that reduces fatigue damage of a wind turbine is designed. It is important that the system be robust, especially at 1 omega /sub r/ and 3 omega /sub r/, which are the most prominent rotational disturbances which act on the system. In order to avoid actuator saturation, a detuned controller is designed. When the windspeed rises above the rated speed, the controller must unwind and attain the correct state before normal control can continue. This is achieved by splitting the detuned controller into two parts. Simulation results are presented, showing that the detuned controller overcomes the problems of actuator saturation and instability, but that the overshoots in the power and torque plots are still too large.< >
ISBN:9780780300477
0780300475
DOI:10.1109/CCA.1992.269889