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Title:
CONTROL DEVICE AND CONTROL METHOD FOR INTEGRATED GASIFICATION COMBINED CYCLE POWER GENERATION PLANT, AND INTEGRATED GASIFICATION COMBINED CYCLE POWER GENERATION PLANT
Document Type and Number:
WIPO Patent Application WO/2017/188052
Kind Code:
A1
Abstract:
The integrated gasification combined cycle power generation plant comprises: a gasification furnace; a gas turbine which is configured to be drivable by using combustible gas generated by the gasification furnace as fuel; a flow rate control valve which is disposed on piping for supplying the combustible gas from the gasification furnace to the gas turbine. The control device for the integrated gasification combined cycle power generation plant is equipped with: a casing pressure calculation part for calculating the casing pressure of the gas turbine; a piping pressure loss calculation part for calculating the pressure loss in the piping from the flow rate control valve to a combustor of the gas turbine; an outlet pressure calculation part for calculating the outlet pressure of the flow rate control valve on the basis of the casing pressure calculated by the casing pressure calculation part and the pressure loss calculated by the piping pressure loss calculation part; and an opening degree command calculation part for calculating the opening degree command for the flow rate control valve on the basis of the fuel flow rate command for the gas turbine, the outlet pressure calculation result of the outlet pressure calculation part, and the differential pressure of the flow rate control valve or the measured value of the inlet pressure of the flow rate control valve.

Inventors:
MORII, Hisanori (C/O Mitsubishi Hitachi Power Systems Ltd, 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
TAKASHIMA, Yasuhiro (C/O Mitsubishi Hitachi Power Systems Ltd, 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
YABE, Tetsuya (C/O Mitsubishi Hitachi Power Systems Ltd, 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
SAKAKI, Takahiko (C/O Mitsubishi Hitachi Power Systems Ltd, 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
Application Number:
JP2017/015515
Publication Date:
November 02, 2017
Filing Date:
April 18, 2017
Export Citation:
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Assignee:
MITSUBISHI HITACHI POWER SYSTEMS, LTD. (3-1 Minatomirai 3-Chome, Nishi-ku Yokohama-sh, Kanagawa 01, 〒2208401, JP)
International Classes:
F02C9/28; F02C3/28; F02C7/057; F02C7/22; F02C9/40; F02C9/50; F23R3/26
Domestic Patent References:
WO2008149731A12008-12-11
Foreign References:
JP2011075174A2011-04-14
JP2015052288A2015-03-19
JPS62223421A1987-10-01
JP2010209332A2010-09-24
Attorney, Agent or Firm:
SEISHIN IP PATENT FIRM, P.C. (Mita 43MT Building 13th Floor, 13-16 Mita 3-Chome, Minato-k, Tokyo 73, 〒1080073, JP)
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