Cyclic Control Optimization for a Smart Rotor

Leonardo Bergami, Lars Christian Henriksen

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Abstract

The paper presents a method to determine cyclic control trajectories for a smart rotor undergoing periodic-deterministic load variations. The control trajectories result from a constrained optimization problem, where the cost function to minimize is given by the variation of the blade root flapwise bending moment within a rotor revolution. The method is applied to a rotor equipped with trailing edge flaps, and capable of individual blade pitching. Results show that the optimized cyclic control significantly alleviates the load variations from periodic disturbances; the combination of both cyclic flap and pitch allows to reduce the action (and hence the wear) on the pitch actuators, and still to achieve considerable load alleviation.
Original languageEnglish
Title of host publicationProceedings of 8th PhD Seminar on Wind Energy in Europe
Number of pages6
Publication date2012
Publication statusPublished - 2012
Event8th PhD Seminar on Wind Energy in Europe - Zurich, Switzerland
Duration: 12 Sep 201214 Sep 2012

Seminar

Seminar8th PhD Seminar on Wind Energy in Europe
Country/TerritorySwitzerland
CityZurich
Period12/09/201214/09/2012

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