Title:
GAS TURBINE AND METHOD FOR THE OPERATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2010/020595
Kind Code:
A3
Abstract:
The invention relates to a gas turbine (12) which can be safely operated at a nominal rotation speed with a reduced margin in relation to the surge limit of the compressor, and to a method for the operation of this gas turbine. The gas turbine (12) delivers electric power to an electric network (21) via a directly driven generator (18) which is frequency-coupled to and connected to the network and produces alternating current at an operating frequency. In the event of a frequency drop, the pressure in the compressor (13) of the gas turbine (12) is relieved by a controlled, rapid closing of the adjustable compressor vanes, maintaining a sufficient margin in relation to the surge limit of the compressor.
Inventors:
FUCHS HERBERT (CH)
NEMET ANTON (CH)
HOFFMANN JUERGEN (CH)
NEMET ANTON (CH)
HOFFMANN JUERGEN (CH)
Application Number:
PCT/EP2009/060577
Publication Date:
April 22, 2010
Filing Date:
August 14, 2009
Export Citation:
Assignee:
ALSTOM TECHNOLOGY LTD (CH)
FUCHS HERBERT (CH)
NEMET ANTON (CH)
HOFFMANN JUERGEN (CH)
FUCHS HERBERT (CH)
NEMET ANTON (CH)
HOFFMANN JUERGEN (CH)
International Classes:
F04D27/02; F02C9/22
Foreign References:
| US20030011199A1 | 2003-01-16 | |||
| EP1840355A1 | 2007-10-03 | |||
| US5042245A | 1991-08-27 |
Attorney, Agent or Firm:
ALSTOM TECHNOLOGY LTD. (Brown Boveri Str. 7/664/2, Baden, CH)
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