CONTROL DEVICE AND CONTROL METHOD FOR INTEGRATED GASIFICATION COMBINED CYCLE POWER GENERATION PLANT, AND INTEGRATED GASIFICATION COMBINED CYCLE POWER GENERATION PLANT

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 combus...

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Bibliographische Detailangaben
Hauptverfasser:	MORII, Hisanori, SAKAKI, Takahiko, TAKASHIMA, Yasuhiro, YABE, Tetsuya
Format:	Patent
Sprache:	eng ; fre ; jpn
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION APPARATUS COMBUSTION ENGINES COMBUSTION PROCESSES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS GAS-TURBINE PLANTS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	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. L'invention concerne une installation de génération d'énergie à cycle combiné à gazéification intégrée, laquelle installation comprend : un four de gazéification ; une turbine à gaz qui est configurée pour être entraînée à l'aide de gaz combustibles générés par le four de gazéification à titre de combustible ; une vanne de commande de débit d'écoulement qui est disposée sur une tubulure pour fournir les gaz combustibles à partir du four de gazéification jusqu'à la turbine à gaz. Le dispositif de commande pour l'installation de génération d'énergie à cycle combiné à gazéification intégrée comporte : une partie de calcul de pression de carter pour calculer la pression de carter de la turbine à gaz ; une partie de calcul de perte de pression de tubulure pour calculer la perte de pression dans la tubulure à partir de la vanne de commande de débit d'écoulement vers une chambre de combustion de la turbine à gaz ; une partie de calcul de pression de sortie pour calculer la pression de sortie de la vanne de commande de débit d'écoulement sur la base de la pression de carter calculée par la partie de calcu