JPS55112806A - Controller for steam turbine - Google Patents

Controller for steam turbine

Info

Publication number
JPS55112806A
JPS55112806A JP1973979A JP1973979A JPS55112806A JP S55112806 A JPS55112806 A JP S55112806A JP 1973979 A JP1973979 A JP 1973979A JP 1973979 A JP1973979 A JP 1973979A JP S55112806 A JPS55112806 A JP S55112806A
Authority
JP
Japan
Prior art keywords
rotational frequency
increase rate
controller
speed increase
turbine
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.)
Granted
Application number
JP1973979A
Other languages
Japanese (ja)
Other versions
JPS5825841B2 (en
Inventor
Shuntaro Tanaka
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1973979A priority Critical patent/JPS5825841B2/en
Publication of JPS55112806A publication Critical patent/JPS55112806A/en
Publication of JPS5825841B2 publication Critical patent/JPS5825841B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Control Of Turbines (AREA)

Abstract

PURPOSE: To prevent the rotational frequency of a turbine from sharply changing due to the switchover of a steam source, by calculating a control output from the condition of a plant and the rate of change in the rotational frequency.
CONSTITUTION: A controller 15 for the rotational frequency of a BFP turbine is provided with a closed-loop control system in which a rotational frequency command f1 and a raised speed command f2 are applied, the actual rotational frequency f3 of the turbine is used as a main feedback quantity and an MSC lift f4 is used as an accessory feedback quantity. The controller calculates a control signal. The result of the calculation by the controller 15 is applied to a speed increase rate calculator 19. A speed increase rate computed by the calculator 19 is compared with a speed increase rate command by a speed increase rate excess discrimination circuit 20. The output of the circuit 20 or a CV closing correction output unit 21 is supplied to a detection circuit 22 to operate an MSC driving circuit 18 through an HPCV control output compensator 23 at the beginning of opening of an HPCV 12.
COPYRIGHT: (C)1980,JPO&Japio
JP1973979A 1979-02-23 1979-02-23 steam turbine control device Expired JPS5825841B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1973979A JPS5825841B2 (en) 1979-02-23 1979-02-23 steam turbine control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1973979A JPS5825841B2 (en) 1979-02-23 1979-02-23 steam turbine control device

Publications (2)

Publication Number Publication Date
JPS55112806A true JPS55112806A (en) 1980-09-01
JPS5825841B2 JPS5825841B2 (en) 1983-05-30

Family

ID=12007697

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1973979A Expired JPS5825841B2 (en) 1979-02-23 1979-02-23 steam turbine control device

Country Status (1)

Country Link
JP (1) JPS5825841B2 (en)

Also Published As

Publication number Publication date
JPS5825841B2 (en) 1983-05-30

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