Method and apparatus for operating a wind turbine with a variable speed limit that may be above or below a predetermined speed limit depending on whether there is an estimated detrimental overspeed state
US10001108B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 9, 2013 |
| Grant date | Jun 19, 2018 |
| Priority date | — |
| Expiry date | Oct 15, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/72
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for operating a wind turbine is provided. The wind turbine includes a rotor with at least one rotor blade. The method includes determining an actual value of at least one of a first variable indicative of a failure state of the wind turbine and a second variable of the wind turbine correlated to a status of the wind turbine or an ambient status. The method further includes estimating an occurrence of a detrimental overspeed state of the wind turbine from at least one of the determined actual values, wherein a variable speed limit is adjusted based on the result of the estimation. The method further includes operating the wind turbine having regard to the variable speed limit. A control system for performing this method and a wind turbine including the control system is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.