초록 ▼

A turbine control system which includes dual controllers having microcomputer processing circuits and capable of transmitting and receiving digital information to and from a plurality of valve position control circuits, also including their own microcomputer circuitry for controlling turbine steam a

A turbine control system which includes dual controllers having microcomputer processing circuits and capable of transmitting and receiving digital information to and from a plurality of valve position control circuits, also including their own microcomputer circuitry for controlling turbine steam admission valves. An operator\s panel provides for two levels of automatic control as well as a manual backup which is communicative directly with all of the valve position control circuits. Overspeed protection control as well as fast valving is provided by redundant speed control circuits.

대표청구항 ▼

A control system for a steam turbine operative to drive an electric generator and having a plurality of steam admission valves which are controllable in position to determine the operating level of the turbine, comprising: (A) a controller including programmable digital computer means operable to re

A control system for a steam turbine operative to drive an electric generator and having a plurality of steam admission valves which are controllable in position to determine the operating level of the turbine, comprising: (A) a controller including programmable digital computer means operable to receive and store input target set point signals and being responsive to said signals to generate a plurality of digital valve control signals; (B) each said steam admission valve including a valve actuation circuit operable, in response to a valve position control signal, to position the valve so as to control its degree of opening; (C) position detection means coupled to each said valve to provide respective feedback signals indicative of valve position; (D) a plurality of valve position control circuits each including programmable digital computer means operable to receive and store a respective one of said digital valve control signals as well as a respective one of said feedback signals and being responsive to said digital valve control and feedback signals to generate a respective one of said valve position control signals; and (E) said programmable digital computer means of said valve position control circuit being additionally operable to transmit selected stored digital information back to said controller.