GB1433613A - Method of controlling a steam turbine generator - Google Patents

Method of controlling a steam turbine generator

Info

Publication number
GB1433613A
GB1433613A GB1823973A GB1823973A GB1433613A GB 1433613 A GB1433613 A GB 1433613A GB 1823973 A GB1823973 A GB 1823973A GB 1823973 A GB1823973 A GB 1823973A GB 1433613 A GB1433613 A GB 1433613A
Authority
GB
United Kingdom
Prior art keywords
alarm
control
signals
steam turbine
valves
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1823973A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Priority to GB1823973A priority Critical patent/GB1433613A/en
Publication of GB1433613A publication Critical patent/GB1433613A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/16—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
    • F01K7/22—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbines having inter-stage steam heating
    • F01K7/24—Control or safety means specially adapted therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/20—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted
    • F01D17/22—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical
    • F01D17/24—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical electrical

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Control Of Turbines (AREA)

Abstract

1433613 Automatic control of electric generating plant WESTINGHOUSE ELECTRIC CORP 22 April 1975 18239/73 Headings G3N and G3R A steam turbine driven electric generating plant is controlled by a central digital processing means, which provides positioning signals for steam valves in response to operational input data and the contents of a memory in which is stored interrelated programs, a continuous comparison being made between the actual and commanded positions of the valves and an alarm being given if there is a disparity between the two greater than a predetermined value. Manual control is also provided, this being caused to track the processor derived command signals, and changeover is prevented if the alarm signal is present. If the alarm exists for more than a prescribed time the command position is brought towards agreement with the actual position and normal control is resumed, but if this adjustment is necessary repeatedly shutdown of the plant is initiated. The complete system is described in detail, using sixteen figures. The digital processor is a commercially available computer but certain aspects of the control may be in analogue form. For example, the speed is measured by three magnetic pick-up devices; one provides digital signals and the others analogue, and the computer selects the appropriate one according to (unspecified) dynamic conditions.
GB1823973A 1975-04-22 1975-04-22 Method of controlling a steam turbine generator Expired GB1433613A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1823973A GB1433613A (en) 1975-04-22 1975-04-22 Method of controlling a steam turbine generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1823973A GB1433613A (en) 1975-04-22 1975-04-22 Method of controlling a steam turbine generator

Publications (1)

Publication Number Publication Date
GB1433613A true GB1433613A (en) 1976-04-28

Family

ID=10109049

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1823973A Expired GB1433613A (en) 1975-04-22 1975-04-22 Method of controlling a steam turbine generator

Country Status (1)

Country Link
GB (1) GB1433613A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2194358A (en) * 1986-07-17 1988-03-02 Skoda Kp Steam turbine control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2194358A (en) * 1986-07-17 1988-03-02 Skoda Kp Steam turbine control
GB2194358B (en) * 1986-07-17 1991-02-20 Skoda Kp Method for the regulation of a steam turbine and arrangement for carrying out the method

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee