| 摘要 |
PURPOSE:To enhance load follow-up characteristics by providing a pressure deviation information as a preceding feedforward signal to the pressure control part for a gasifying furnace or a gas turbine master mode control. CONSTITUTION:The crude gases discharged from a gasifying furnace 2 are injected into a combustor 10 through a fuel pressure regulating valve 9, and are mixed with compressed air discharged to be supplied by a compressor 11 to be burned. The burned gases thus produced drive a gas turbine 12. A plant load command 30 is also input into a differentiator 41 to issure a plant load change command 42. This command 42 is given to a gas turbine fuel controller 37 as a preceding feedforward signal, so that the opening of the fuel pressure regulating valve 9 for the gas turbine is controlled. Thus, quick follow-up can be made for a sudden change in a plant load command, and accordingly the enhancement in load follow-up characteristics can be achieved.
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