Invention Grant
- Patent Title: Control of a wind turbine during recovery after a grid fault
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Application No.: US15775356Application Date: 2016-11-17
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Publication No.: US10677218B2Publication Date: 2020-06-09
- Inventor: Martin Ansbjerg Kjær , Kasper Zinck Ostergaard , Jan Graugaard-Jensen
- Applicant: VESTAS WIND SYSTEMS A/S
- Applicant Address: DK Aarhus N
- Assignee: VESTAS WIND SYSTEMS A/S
- Current Assignee: VESTAS WIND SYSTEMS A/S
- Current Assignee Address: DK Aarhus N
- Agency: Patterson + Sheridan, LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@1ce6c9a
- International Application: PCT/DK2016/050373 WO 20161117
- International Announcement: WO2017/084675 WO 20170526
- Main IPC: F03D9/00
- IPC: F03D9/00 ; H02P9/04 ; F03D7/02

Abstract:
Embodiments of the present invention relate to control of a wind turbine during a recovery period after a grid fault. It is disclosed to operate a wind turbine during the recovery period to determine the actual pitch angle of the rotor blades and the actual wind speed, and based on that determining a desired pitch angle of the rotor blades, as well as a pitch ramp rate so that the actual pitch angle can be brought to match the desired pitch angle before the end of the recovery period. In embodiments, the steps performed in the recovery mode are repeated at intervals during the recovery period.
Public/Granted literature
- US20180320663A1 CONTROL OF A WIND TURBINE DURING RECOVERY AFTER A GRID FAULT Public/Granted day:2018-11-08
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