Turbine efficient valve position computer

Patent · Tue Dec 11 04:00:00 EST 1990

OSTI ID:5136432

Binstock, M H; Shaltes, W B

This paper discusses an improvement in a method for controlling the operation of a steam turbine system. The system includes a source of steam under pressure, means for varying pressure of the steam being produced by the source, a throttle valve connected to conduct steam from the source, a steam turbine having a first stage, governor valves connected between the throttle valve and the turbine first stage, each governor valve being movable between two selected positions each creating minimum steam flow throttling losses, system control means for producing a system control signal representative of the desired power level to be supplied by the turbine system, and governor valve control means connected for producing a valve control signal in response to an input signal and for positioning each governor valve in accordance with the value of the valve control signal. The method includes giving the input signal to the governor valve control means a value which is based on the system control signal and which causes the valve control signal to have a value which will place each governor valve at least approximately at a selected position.

• Assignee: Westinghouse Electric Corp., Pittsburgh, PA (USA)
• Patent Number(s): A; US 4976108
• Application Number: PPN: US 7-521869
• OSTI ID: 5136432
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
200104* -- Fossil-Fueled Power Plants-- Components
COMPRESSIBLE FLOW
COMPUTERIZED CONTROL SYSTEMS
CONTROL EQUIPMENT
CONTROL SYSTEMS
DESIGN
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
MACHINERY
ON-LINE CONTROL SYSTEMS
ON-LINE SYSTEMS
OPERATION
STEAM TURBINES
TURBINES
TURBOMACHINERY
VALVES