Patent · US Active

Method for operating a wind energy converter, control device for a wind energy converter, and wind energy converter

US8449244B2 · kind B2 · utility

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0References

19Claims

0Family size

Assignee

AMSC Austria GmbH · AT

Inventors

Martin Fischer · Gleichen, DE
Peter Weichbold · Klagenfurt, AT
Robert Tratnig · Ferlach, AT

Key dates

Filing date	Mar 20, 2009
Grant date	May 28, 2013
Priority date	—
Expiry date	Mar 20, 2029

Classification

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

Abstract

Some general aspects of the invention provide a method for operating a wind energy converter having a variable-ratio gear system mechanically coupled between a rotor and a generator, wherein the variable-ratio gear system includes a first hydraulic unit coupled to a first shaft and a second hydraulic unit coupled to a second shaft. The method comprises adjusting the variable-ratio gear system to a first gear ratio at which the first shaft substantially does not rotate; determining a wind speed or a related parameter (n, P, p); detecting whether the wind speed or the related parameter (n, P, p) has crossed a first threshold value in a first direction; and adjusting the variable-ratio gear system, when the wind speed or the related parameter (n, P, p) has crossed the first threshold value in the first direction, to a second gear ratio at which the second shaft substantially does not rotate.

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