Quadratic Optimal Tracking Control of Wind Turbine Systems

It is well known that the uncertainty arisen from the aerodynamic torque of wind speed imposes significant challenge for control of wind turbine, especially in the stage of maximum power point tracking (MPPT). In this paper, a sliding mode adaptive observer is proposed to estimate the nonlinear aero...

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Bibliographic Details
Published in:IFAC-PapersOnLine 2015, Vol.48 (28), p.502-507
Main Authors: Liu, Feng, Li, Danyong, Li, Peng, Song, Yongduan
Format: Article
Language:English
Subjects:
Adaptive estimator
Linear quadratic optimization
Load mitigation
Wind power
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Summary:It is well known that the uncertainty arisen from the aerodynamic torque of wind speed imposes significant challenge for control of wind turbine, especially in the stage of maximum power point tracking (MPPT). In this paper, a sliding mode adaptive observer is proposed to estimate the nonlinear aerodynamic torque, based on which a linear quadratic tracking control optimization algorithm is developed. It is shown that this method can not only ensure precise rotor speed tracking, but also evidently reduce the vibration of the drive train. Both theoretical analysis and numerical simulations validate the effectiveness of the proposed method.
ISSN:2405-8963
2405-8963
DOI:10.1016/j.ifacol.2015.12.178