6533b830fe1ef96bd1297c89

RESEARCH PRODUCT

A computational method to optimal control of a wind turbine system using wavelets

Hamid Reza Karimi

subject

VDP::Mathematics and natural science: 400::Mathematics: 410::Applied mathematics: 413Engineeringbusiness.industryBlade pitchWavelet transformAerodynamicsOptimal controlTurbineSystem dynamicsAlgebraic equationWaveletControl theoryaerodynamics blades equations mathematical model optimal control poles and towers wind turbinesVDP::Technology: 500::Materials science and engineering: 520business

description

Author's version of a chapter in the book: Proceedings of the IEEE International Syposium on Computer-Aided Control System Design (2011). Also avaliable from the publisher at: http://dx.doi.org/10.1109/CACSD.2011.6044551 This paper deals with a computational optimization approach to the problem of state-feedback control design for a wind turbine system. The first step of the study is to develop a reduced order model for the system by considering the most important physical phenomena of aerodynamics and structural dynamics. Moreover, the behavior of the system can be influenced by the coupled dynamics between the tower motions and the blade pitch and turbine speed which can cause instabilities in the control loops in the worst case. By using a suitable wavelet funcation, called Haar functions, a recursive computational procedure is established for finding the system dynamics approximately by solving only algebraic equations instead of solving the Riccati differential. Simulation results are given to illustrate the usefulness of the proposed control methodology.

yearjournalcountryeditionlanguage
2011-09-01
http://hdl.handle.net/11250/136831