A method and control system for reducing the fatigue loads...

F - Mech Eng,Light,Heat,Weapons – 03 – D

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F03D 7/04 (2006.01)

Patent

CA 2645108

The invention relates to a method for reducing fatigue loads in the components of a wind turbine subjected to asymmetrical loading of its rotor, comprising the steps of: repeatedly collecting and storing load data of the rotor, determining a load distribution function for the rotor from said stored data, deriving a plurality of periodic functions from said load distribution function, determining actions for the wind turbine control means for reducing the fatigue load of the wind turbine components from said derived plurality of periodic functions, and implementing of said determined actions on the wind turbine control means. The invention also relates to a control system as well as a wind turbine and wind park.

L'invention concerne un procédé destiné à réduire les charges de fatigue dans les éléments d'une éolienne soumise à une charge asymétrique de son rotor. Ce procédé consiste à collecter et stocker des données du rotor de manière itérative, à déterminer une fonction de distribution de charge pour le rotor à partir des données stockées, à dériver une pluralité de fonctions périodiques à partir de cette fonction de distribution de charge, à déterminer, à partir des fonctions périodiques dérivées, des mesures pour l'unité de commande d'éolienne en vue d'une réduction de la charge de fatigue des éléments de l'éolienne, et à mettre en oeuvre les mesures déterminées sur l'unité de commande d'éolienne. L'invention concerne également un système de commande ainsi qu'une éolienne et un parc éolien.

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