A METHOD FOR DETERMINING WAKE CONDITIONS AT A WIND TURBINE GENERATOR BY MEASURING BLADE DEFLECTION FROM AN IDEAL BLADE TRAJECTORY

A method (100) for determining wake conditions (90) at a wind turbine generator (WTG) by measuring blade deflection from an ideal blade trajectory, wherein wind turbine generator (WTG) comprising a blade (16), said blade comprising an accelerometer (20), the method (100) comprising steps of:- measur...

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Bibliographische Detailangaben
Hauptverfasser:	TOLRON, Xavier, MINGALIEV, Shavkat, LÜBKER, Poul Anker Skaarup
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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Beschreibung
Zusammenfassung:	A method (100) for determining wake conditions (90) at a wind turbine generator (WTG) by measuring blade deflection from an ideal blade trajectory, wherein wind turbine generator (WTG) comprising a blade (16), said blade comprising an accelerometer (20), the method (100) comprising steps of:- measuring (200) sensory data (80) of the accelerometer (20) during operation,- time-stamping and time-synchronizing (210) the sensory data (80) collected by the accelerometer (20);- dividing (300) the sensory data (80) into sub-data groups (82), wherein each sub-data group (82) comprises at least one full rotation of the blade (16);- determining (400) wake conditions (90) as a function of at least one of the sub-data groups (82) and a wave function (84).