Blade angle adjustment rate limit adjustment

US9309866B2 · kind B2 · utility

Assignee

• SENVION SE · DE

Inventors

• Karsten Warfen · Söhren, DE
• Henning Leweke · Osnabrück, DE

Key dates

• Filing date: Feb 23, 2009
• Grant date: Apr 12, 2016
• Expiry date: Dec 27, 2032

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 (11) with a rotor (9), which has at least one rotor blade (10), wherein at least one part of the rotor blade (10) will be or is rotated around a longitudinal axis of the rotor blade (10) by a blade angle () wherein the rotation of the at least one part of the rotor blade (10) occurs with a pre-settable blade angle adjustment rate (θ), wherein the rotor (9) is operated speed variably and wherein the blade angle adjustment rate () is restricted by a pre-settable blade angle adjustment rate limit (G, G′, G1-G4). Furthermore, a wind power plant (11) with a rotor (9), which receives at least one rotor blade (10), wherein at least one part of the rotor blade (10) is rotatable around a longitudinal axis of the rotor blade (10) by a blade angle (), wherein a blade angle adjustment rate is pre-settable and the blade angle adjustment rate () is restricted by a blade angle adjustment rate limit (G, G′, G1-G4).