METHOD AND SYSTEM FOR CONTROLLING A WIND TURBINE TO MANAGE EDGEWISE BLADE VIBRATIONS

METHOD AND SYSTEM FOR CONTROLLING A WIND TURBINE TO MANAGE EDGEWISE BLADE VIBRATIONS

A method of controlling a wind turbine for the avoidance of edgewise vibrations. The method comprises the steps of determining a whirling mode frequency of a rotor blade of the wind turbine; determining a rotational frequency of the rotor blade corresponding to the speed of the rotor blade; determin...

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Hauptverfasser: BACHMANN, Thomas Hedegaard, NIELSEN, Anders Steen
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BLASTING
HEATING
LIGHTING
MACHINES OR ENGINES FOR LIQUIDS
MECHANICAL ENGINEERING
OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
PRODUCING MECHANICAL POWER
WEAPONS
WIND MOTORS
WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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creator BACHMANN, Thomas Hedegaard
NIELSEN, Anders Steen
description A method of controlling a wind turbine for the avoidance of edgewise vibrations. The method comprises the steps of determining a whirling mode frequency of a rotor blade of the wind turbine; determining a rotational frequency of the rotor blade corresponding to the speed of the rotor blade; determining a threshold value for the whirling mode frequency based on the rotational frequency; and, reducing the speed of the rotor blade if the whirling mode frequency substantially equals or is less than the threshold value.
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subjects BLASTING
HEATING
LIGHTING
MACHINES OR ENGINES FOR LIQUIDS
MECHANICAL ENGINEERING
OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
PRODUCING MECHANICAL POWER
WEAPONS
WIND MOTORS
WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
title METHOD AND SYSTEM FOR CONTROLLING A WIND TURBINE TO MANAGE EDGEWISE BLADE VIBRATIONS
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