Patent · US Expired

Low voltage ride through for wind turbine generators

US6921985B2 · kind B2 · utility

68Cited by

8References

45Claims

0Family size

Assignee

General Electric Company · US

Inventors

Wilhelm Janssen · Saterland, DE
Henning Luetze · Bad Bentheim, DE
Andreas Buecker · Hasbergen, DE
Till Hoffmann · Salzbergen, DE
Ralf Hagedorn · Holdorf, DE

Key dates

Filing date	Jan 24, 2003
Grant date	Jul 26, 2005
Priority date	—
Expiry date	May 6, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/76
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A wind turbine. The wind turbine includes a blade pitch control system to vary a pitch of one or more blades and a turbine controller coupled with the blade pitch control system. A first power source is coupled with the turbine controller and with the blade pitch control system to provide power during a first mode of operation. Uninterruptible power supplies coupled to the turbine controller and with the blade pitch control system to provide power during a second mode of operation. The turbine controller detects a transition from the first mode of operation to the second mode of operation and causes the blade pitch control system to vary the pitch of the one or more blades in response to the transition.

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