Wind power plant and method for operating the same
US8915715B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 16, 2009 |
| Grant date | Dec 23, 2014 |
| Priority date | — |
| Expiry date | Dec 16, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/72
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention is directed to a high-power wind energy installation, wherein the rotor blades, to minimize the static and/or dynamic structural load and/or to damp vibrations, for example by generating counterforces to compensate for interference forces and moments, can be adjusted even when a constant wind velocity v∞ does not warrant it, and to a method for operating such a wind energy installation; it is provided according to the invention to configure at least one rotor blade bearing therein as a rolling bearing that is optimized for a high number of inner race revolutions in that the total dynamic axial load rating Ca,total, defined according to DIN ISO 281, of all those rows (μ) of a utilized rolling bearing according to DIN ISO 281 which participate in force transmission in an axial direction is at least 1.5 times the dynamic axial load rating Ca,ref according to DIN ISO 281 of a double-row ball slewing bearing of comparable dimensions in terms of the cross-sectional area of the bearing and the circumference centered on the centroid, and having mutually identical balls in two rows and a support angle α of 45°; and/or in that the rated life L10, defined according to DIN ISO 28…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.