Reducing tower fatigue loads by a co-ordinated control of the Supergen 2MW exemplar wind turbine

Chatzopoulos, Aristeidis-Panagiotis and Leithead, W.E. (2010) Reducing tower fatigue loads by a co-ordinated control of the Supergen 2MW exemplar wind turbine. In: 3rd Torque 2010, 2010-06-28 - 2010-06-30.

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Abstract

As wind turbines increase in size, the tasks being assigned to the controller increase and their design becomes more demanding; in particular, the controller may be required to reduce the tower fatigue loads. The basic approach to tower load fatigue reduction is to employ a tower feedback loop (TFL). It typically achieves a 4%-7% fatigue load reduction depending on the details of the wind turbine. In this paper, the concept of a co-ordinated (CCD) controller is analysed which aims to increase the tower fore-aft load reduction whilst simultaneously reducing the pitch activity.