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Gas turbine power plant control apparatus including a turbine load control system

  • US 4,208,591 A
  • Filed: 06/20/1973
  • Issued: 06/17/1980
  • Est. Priority Date: 06/20/1973
  • Status: Expired due to Term
First Claim
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1. A gas turbine electric power plant including a gas turbine having compressor, combustion and turbine elements, a generator coupled to the gas turbine for drive power, a generator breaker for coupling said generator to a power system so as to deliver power to the power system, a fuel system for supplying fuel to said gas turbine combustion element, and a turbine load control system for controlling the load accepted by said turbine, said turbine load control system comprising:

  • a. a first control path for generating a first control signal adaptable to control the acceptance of turbine load according to a first predetermined schedule;

    b. a second control path for generating a second control signal adaptable to control the acceptance of turbine load according to a second schedule, and having means for selectively initiating generation of said second control signal in accordance with operator choice;

    c. said second control path including means for selecting the rate of change of said generated second control signal from a plurality of rates;

    d. means for comparing said control signals in accordance with a predetermined arrangement, and for providing a turbine load acceptance control signal derived from said comparison; and

    e. means for operating said fuel system with said derived turbine load acceptance control signal to schedule the acceptance of turbine load after generator breaker closing.

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