The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 12, 2013
Filed:
Aug. 14, 2009
Jürgen Hoffmann, Untersiggenthal, CH;
Thomas Meindl, Kirchdorf, CH;
Jürgen Hoffmann, Untersiggenthal, CH;
Thomas Meindl, Kirchdorf, CH;
ALSTOM Technology Ltd, Baden, CH;
Abstract
A method is provided for operating a power station (), with turbine shafting (), that includes a gas turbine () and a generator () driven directly by the gas turbine () and that generates alternating current with an operating frequency, the output of the generator is connected with an electrical grid () with given grid frequency. An electronic decoupling apparatus or variable electronic gearbox () is arranged between the generator () and the grid (), the decoupling apparatus decouples the operating frequency from the grid frequency. Increased service life of the station and reduced emissions are achieved in that, when there are longer-lasting changes in the grid frequency, the mechanical or aerodynamic rotational speed of the gas turbine () is kept constant and the output of the gas turbine () is adjusted without a delay.