Patent · US Active

Method for the operation of a wind energy plant with a double-fed asynchronous generator and wind energy plant with a double-fed asynchronous generator

US7839008B2 · kind B2 · utility

8Cited by

6References

11Claims

0Family size

Assignee

Nordex Energy GmbH · DE

Inventors

Thomas Paul Woldmann · Hamburg, DE
Kay Richter · Norderstedt, DE

Key dates

Filing date	Jun 18, 2007
Grant date	Nov 23, 2010
Priority date	—
Expiry date	Sep 22, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P70/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method for the operation of a wind energy plant with a double-fed asynchronous generator which has a mode of operation as a phase shifter, in which reactive power is fed into the electric power supply grid, the method having the following steps: the stator of the asynchronous generator is short-circuited, the asynchronous generator is run-up to a predetermined rotational speed from a working rotational speed range via a converter after running up, the short-circuit in the stator is cancelled, the double-fed asynchronous generator is synchronized with the electric power supply grid, and it is driven for the generation of reactive power.

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