Invention Grant
- Patent Title: Supervision of controller instability in a wind turbine
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Application No.: US13997582Application Date: 2011-12-20
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Publication No.: US09909564B2Publication Date: 2018-03-06
- Inventor: Erik Carl Lehnskov Miranda
- Applicant: Erik Carl Lehnskov Miranda
- 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: Patteron + Sheridan LLP
- Priority: DK201070578 20101223
- International Application: PCT/DK2011/050501 WO 20111220
- International Announcement: WO2012/083962 WO 20120628
- Main IPC: F03D7/02
- IPC: F03D7/02 ; F03D7/04
Abstract:
A wind turbine including a controller configured to periodically enter an Eigen frequency detection mode in which the controller gain is incremented in a controlled manner to detect the Eigen frequencies. During normal operations, the controller output may be monitored to detect the Eigen frequency which, if detected, may allow damage control operations to be undertaken.
Public/Granted literature
- US20130287568A1 SUPERVISION OF CONTROLLER INSTABILITY IN A WIND TURBINE Public/Granted day:2013-10-31
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