Siemens Gamesa Renewable Energy A/s

Siemens Aktiengesellschaft

Lasse Gilling

Scott Richard Johnson

Peder Bay Enevoldsen

Alejandro Gomez Gonzalez

John M Obrecht

Ryan Andrew Sievers

Drew Eisenberg

Julian Ehlers

Michael Hind

Henrik Fredslund Hansen

Scott J Johnson

A monitoring system for monitoring a time period of a locking state of a rotor of a wind turbine includes at least one motion sensor and at least one computing unit, wherein the computing unit is configured to receive at least one motion measurement from the at least one motion sensor and wherein the computing unit is configured to determine whether the rotor may remain in the locking state or the rotor should be unlocked based on the at least one motion measurement. A wind turbine having the monitoring system and a method for monitoring a time period of a locking state of a rotor of a wind turbine is also provided.

Monitoring system and method for monitoring a time period of a locking state of a rotor of a wind turbine and wind turbine

Provided is a method for adjusting a pitch angle of a rotor blade connected to a rotor of a wind turbine, the method includes: pitching the rotor blade towards a target blade pitch angle, the manner of pitching depending on a load on a pitch bearing and/or an azimuthal position of the rotor.

Method for load reduction on wind turbine blade pitch bearings

A swept wind turbine blade () includes a blade body () extending along a length between a root () and a tip () of the blade (). A pitch axis () extends through the root () of the blade (). A reference line () defines a deviation from the pitch axis () and corresponds to a swept shape of the blade () along its length. The reference line () has a zero sweep at the root (), a zero slope at the root (), and a positive curvature () along a segment within 25% of the length from the root () to the tip () of the blade ().

Wind turbine blade having a geometric sweep

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Vejle, Denmark

Lasse Gilling