Wind plant and method of initiating braking actions in different operating modes

US8143734B2 · kind B2 · utility

Assignee

• R E power Systems AG · DE

Inventors

• Dirk Steudel · Kiel, DE
• Martin Von Mutius · Ascheffel, DE

Key dates

• Filing date: Mar 5, 2009
• Grant date: Mar 27, 2012
• Expiry date: Apr 12, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/72
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method for the operation of a wind power plant 10) with a rotor (12), which has at least one angle-adjustable rotor blade (14), wherein the wind power plant (10) is operated in a first operating mode (71) and/or a second operating mode (75). In the first operating mode (71) a braking process of the rotor (12) is initiated when a rotational speed of the rotor (12) is exceeded, which lies above a first rotational speed threshold value. Also, a method for the operation of a wind power plant (10) with a rotor (12), which has at least one angle-adjustable rotor blade (14), wherein an operating parameter is monitored and a braking process of the rotor (12) is initiated when an operating parameter threshold value is reached.