Use of reduced-order observers for feedback control in large wind turbines may reduce fatigue damage from excitement of flexible modes

Author

Parker, Glenn A. ; Johnson, C.D.

Author_Institution

Huntsville Res. Lab., Georgia Tech Res. Inst., Huntsville, AL, USA

fYear

2010

fDate

7-9 March 2010

Firstpage

85

Lastpage

89

Abstract

While full-order observers have been successfully applied in state-space blade-pitch control of large wind turbines, the use of reduced-order observers has, apparently, not been documented. Using a model of a 600kW horizontal-axis wind turbine, we demonstrate that the use of a reduced-order observer to obtain wind speed estimates for disturbance accommodation control may dampen flexible modes and lead to reduced structural fatigue in large wind turbines.

Keywords

angular velocity control; blades; fatigue; machine control; reduced order systems; state-space methods; wind turbines; disturbance accommodation control; fatigue damage; feedback control; flexible modes excitement; horizontal axis wind turbine; power 600 kW; reduced order observer; state space blade pitch control; structural fatigue; wind speed estimation; wind turbines; Blades; Control design; Fatigue; Feedback control; Laboratories; Observers; Rotors; Velocity measurement; Wind speed; Wind turbines; Disturbance Accommodation Control; Wind Turbine Control; Wind Turbine Fatigue Mitigation;

fLanguage

English

Publisher

ieee

Conference_Titel

System Theory (SSST), 2010 42nd Southeastern Symposium on

Conference_Location

Tyler, TX

ISSN

0094-2898

Print_ISBN

978-1-4244-5690-1

Type

conf

DOI

10.1109/SSST.2010.5442856

Filename

5442856