Control apparatus for steam turbine

Details Control apparatus for steam turbine Control apparatus for steam turbine

1982-04-12

1984-07-24

Ostrager, Allen M.

Power plants

Motive fluid energized by externally applied heat

Having condition responsive control

60663, F01K 1302

Patent

active

044611528

ABSTRACT:
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.

REFERENCES:
patent: 3097490 (1963-07-01), Callan et al.
patent: 3802189 (1974-04-01), Jenkins, Jr.
patent: 3896623 (1975-07-01), Daniels
patent: 4184337 (1980-01-01), Bloch
patent: 4203297 (1980-05-01), Sakai

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