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Combined cycle electric power plant and a gas turbine having an improved startup control especially useful in a backup control system
Combined cycle electric power plant and a gas turbine having an improved startup control especially useful in a backup control system
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机译:具有改进的启动控制的联合循环发电厂和燃气轮机,在备用控制系统中特别有用
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摘要
A combined cycle electric power plant includes gas and steam turbines and steam generators and a digital/analog control system. The control system includes an automatic control and a backup control which are interfaced to operate the gas turbine throttle valve for speed and load control purposes and to provide for manual/auto transfers. The backup control includes a startup control which functions on the basis of a feedforward fuel schedule ramp function. Between ignition speed and 78% synchronous speed, the ramp function is a linear function of fuel demand versus speed with a predetermined slope. From 78% of synchronous speed to idle speed, the ramp function is a linear function with a lesser slope.
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