Control apparatus for steam turbine

Details Control apparatus for steam turbine Control apparatus for steam turbine

F - Mech Eng,Light,Heat,Weapons

01

D

341/12

F01D 17/24 (2006.01) F01D 17/08 (2006.01)

Patent

CA 1190303

ABSTRACT OF THE DISCLOSURE In a steam turbine used with a power plant operated under variable pressure of the steam which is fed to the turbine through control valves, the control apparatus is arranged to control the control valves according to a signal obtained by adding an opening set signal with a compensation signal which is determined in dependence on a difference between a turbine stage steam pressure signal and a signal derived by multiplying the opening set signal with a ratio of the actual value of the control valve inlet steam pressure to a rated value thereof.

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