Patent · US Active

Method for estimating a wind speed at a wind turbine

US10443567B2 · kind B2 · utility

1Cited by

2References

13Claims

0Family size

Assignee

Vestas Wind Systems A/S · DK

Inventors

Martin Atzler · Aarhus, DK
Thomas Scheel · Stolberg, DE
Lars Finn Sloth Larsen · Hjørring, DK
Thomas Krüger · Leverkusen, DE

Key dates

Filing date	Nov 20, 2015
Grant date	Oct 15, 2019
Priority date	—
Expiry date	Feb 10, 2036

Classification

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

Abstract

A fast-converging and reliable method for estimating a wind speed at, for example, a wind turbine comprising a rotor carrying a set of variable pitch angle wind turbine blades. The estimated wind speed is iteratively derived using a wind turbine rotor rotational speed, a turbine blade pitch angle, and a derived initial estimated wind speed. The initial estimated wind speed is based on the rotational speed and an initial tip speed ratio. The initial tip speed ratio is selected to be a value greater than a minimum tip speed ratio, wherein the minimum tip speed ratio defines a control region stability limit as a function of the pitch angle. Thus, for a given pitch angle, a minimum tip speed ratio is derived as a limit or boundary point between a stable control region and an unstable control region.

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