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

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2 Author(s)
Parker, G.A. ; Huntsville Res. Lab., Georgia Tech Res. Inst., Huntsville, AL, USA ; Johnson, C.D.

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.

Published in:

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

Date of Conference:

7-9 March 2010