patent · US7004724
Method and apparatus for wind turbine rotor load control based on shaft radial displacement
28 February 2006
Indexed reference — no copy held
This patent is cited by material in the archive, so it is indexed here by number, title and inventor. The archive holds no copy of its text.
Abstract
Vertical and horizontal wind shears, yaw misalignment and/or turbulence act together to produce asymmetric loading across a wind turbine rotor. The resultant load produces bending moments in the blades that are reacted through the hub and subsequently to the main shaft. As a result, the main shaft may be radially displaced from its at rest positions. The amount of radial displacement is measured using two or more sensors. The output signals from the sensors are used to determ...
Provenance
- Collection
- Cited prior art
- Original PDF
- patentimages.storage.googleapis.com →
- Filed
- 2003-07-15
- Source
- Google Patents bibliographic record
- Granted
- 2006-02-28
- Inventors
- Kirk G. Pierce; David Lawrence LeMieux; Ralph W. Blakemore; General Electric Co