Turbine starting controller and turbine starting control method

Details Turbine starting controller and turbine starting control method Turbine starting controller and turbine starting control method

2011-07-19

2011-07-19

Cuff, Michael (Department: 3741)

Power plants

Combustion products used as motive fluid

Combined with regulation of power output feature

C060S775000, C060S646000, C060S656000

Reexamination Certificate

active

07980053

ABSTRACT:
A turbine starting controller includes: an optimum starting control unit for predicting, while taking as a variable a turbine acceleration rate/load increase rate as a directly manipulated variable, thermal stress generated in a turbine rotor over a prediction period from a current time to the future, calculating for each control cycle a manipulated variable optimum transition pattern in the prediction period which makes a turbine starting time shortest while keeping the predicted thermal stress equal to or lower than a prescribed value, and determining as an actual optimum manipulated value a value at the current time in the manipulated variable optimum transition pattern; and an rpm/load control unit to which the optimum manipulated variable from the optimum starting control unit is input, for controlling the drive of control valves.

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