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Title:
TWIN-SHAFT GAS TURBINE POWER GENERATION SYSTEM, AND CONTROL DEVICE AND CONTROL METHOD FOR GAS TURBINE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2014/020772
Kind Code:
A1
Abstract:
The present invention is provided with: a high-pressure gas turbine (3H); a first rotating shaft (4H) connected to a compressor (1) and the high-pressure gas turbine; an electric motor (9) connected to the first rotating shaft (4H); a speed governor (13) for adjusting the amount of air taken into the compressor (1); a low-pressure gas turbine (3L); a second rotating shaft (4L) connected to the low-pressure gas turbine (3L); a synchronous power generator (7) connected to the second rotating shaft; a frequency converter (10) for converting the frequency of power transmitted between the synchronous power generator (7) and the electric motor (9); and a control device (12) for controlling the total output of the twin-shaft gas turbine (6) and the electric motor (9) by controlling the speed governor (13) and a frequency converter control device (11) for controlling the frequency converter (10), on the basis of a power output command value (18) for indicating the power to be outputted to an external system (50). It is thereby possible to provide a twin-shaft gas turbine power generation system and a control device and control method for a gas turbine system that can inhibit a reduction in efficiency caused by variation in the outside temperature.

Inventors:
HINO Noriaki (HITACHI LTD., 1-1, Omika-cho 7-chome, Hitachi-sh, Ibaraki 92, 〒3191292, JP)
KUSUMI Naohiro (HITACHI LTD., 1-1, Omika-cho 7-chome, Hitachi-sh, Ibaraki 92, 〒3191292, JP)
TAKAHASHI Kazuo (HITACHI LTD., 1-1, Omika-cho 7-chome, Hitachi-sh, Ibaraki 92, 〒3191292, JP)
ITO Tomomichi (HITACHI LTD., 1-1, Omika-cho 7-chome, Hitachi-sh, Ibaraki 92, 〒3191292, JP)
Application Number:
JP2012/069917
Publication Date:
February 06, 2014
Filing Date:
August 03, 2012
Export Citation:
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Assignee:
HITACHI, LTD. (6-6 Marunouchi 1-chome, Chiyoda-ku Tokyo, 80, 〒1008280, JP)
HINO Noriaki (HITACHI LTD., 1-1, Omika-cho 7-chome, Hitachi-sh, Ibaraki 92, 〒3191292, JP)
KUSUMI Naohiro (HITACHI LTD., 1-1, Omika-cho 7-chome, Hitachi-sh, Ibaraki 92, 〒3191292, JP)
TAKAHASHI Kazuo (HITACHI LTD., 1-1, Omika-cho 7-chome, Hitachi-sh, Ibaraki 92, 〒3191292, JP)
ITO Tomomichi (HITACHI LTD., 1-1, Omika-cho 7-chome, Hitachi-sh, Ibaraki 92, 〒3191292, JP)
International Classes:
F02C6/00; F01D15/10; F02C3/10; F02C9/00; F02C9/20
Foreign References:
JP2007505261A2007-03-08
JP2007170391A2007-07-05
JP2006291948A2006-10-26
JPS61169628A1986-07-31
JP2010518321A2010-05-27
JP2011047404A2011-03-10
Attorney, Agent or Firm:
KASUGA Yuzuru (Torii-nihonbashi Bldg, 4-1 Nihonbashi-honcho 3-chome, Chuo-k, Tokyo 23, 〒1030023, JP)
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