Patent · US Active

Wind energy installation and a method of operating a wind energy installation

US11746748B2 · kind B2 · utility

0Cited by

8References

13Claims

0Family size

Assignee

Siemens Gamesa Renewable Energy Service GmbH · DE

Inventors

Oliver Hör · Kronsburg, DE
Stefan Behl · Holzgerlingen, DE
Karsten Warfen · Söhren, DE

Key dates

Filing date	Jul 2, 2021
Grant date	Sep 5, 2023
Priority date	—
Expiry date	Oct 6, 2041

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/72
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method of operating a wind energy installation wherein a rotor has a first rotor blade which can be angularly adjusted, a first adjustment drive for adjusting the rotor blade, and a safety control system. In a normal mode of operation, the first adjustment drive is supplied with energy from a source and is controlled by a first pitch control system. In a failure mode of operation, the supply of energy to the first adjustment drive is switched from the source to an energy storage device and the safety control system monitors a position and/or movement of the first rotor blade. The first rotor blade is adjusted by the first adjustment drive in a direction of a predetermined stopping position, while the safety control system, as a function of the monitored position and/or movement, enables or effects a deactivation of a first power supply shut-off device. In the failure mode of operation, the safety control system, as a function of the monitored position and/or movement, closes a first pitch brake and activates a first blocking mode in which the supply of energy to the first adjustment drive from the energy storage device and/or an opening of the first pitch brake is prevented.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.