Estimation of yaw misalignment for a wind turbine

US11365715B2 · kind B2 · utility

Assignee

• Ørsted Wind Power A/S · DK

Inventors

• Martin De Maré · Lund, SE
• Lars Hansen · Munich, DE
• Sidse Damgaard Hansen · Skanderborg, DK
• Frederik Ettrup Brink · Humlebæk, DK
• Arne Hedevang · Fredericia, DK
• Anders Nordberg Lauritsen · Odense, DK

Key dates

• Filing date: May 11, 2017
• Grant date: Jun 21, 2022
• Expiry date: Dec 25, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/72
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

Disclosed is a method for estimating systematic yaw misalignment of a wind turbine. The method comprising the steps of: receiving yaw data from the wind turbine indicative of the degrees of rotation of the nacelle for a plurality of yaw operations; receiving performance data from the wind turbine indicative of the alignment of the nacelle of the wind turbine with the wind direction before and after each of the plurality of yaw operations. The yaw data and the performance data being recorded during normal operation of the wind turbine, and the yaw data and the performance data is processed together to estimate the systemic yaw misalignment of the wind turbine.