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:
Aug. 21, 2012
Filed:
Sep. 21, 2010
Jürgen Hoffmann, Untersiggenthal, CH;
Thomas Meindl, Kirchdorf, CH;
Jürgen Hoffmann, Untersiggenthal, CH;
Thomas Meindl, Kirchdorf, CH;
ALSTOM Technology Ltd., Baden, CH;
Abstract
A combined-cycle power plant () has at least one power train () including a steam turbine () and a second generator () directly driven by the steam turbine () and generating alternating current, the output of which generator is connected to a power grid () having a given grid frequency (F), and at least one power train () of a gas turbine () and a first generator () driven directly by the gas turbine () and generating alternating current with an operating frequency, the output of which generator is connected to a power grid () having a predetermined grid frequency. An electronic decoupling device or a variable electronic gear unit () decouples the operating frequency from the grid frequency and is arranged between the first generator () and the power grid (). Such a plant allows both flexible steady-state operation with high overall efficiency as well as flexible transient operation.