EP0213351A2 - Procédé et dispositif de régulation d'une turbine à vapeur d'une centrale thermique - Google Patents

Procédé et dispositif de régulation d'une turbine à vapeur d'une centrale thermique Download PDF

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Publication number
EP0213351A2
EP0213351A2 EP86109738A EP86109738A EP0213351A2 EP 0213351 A2 EP0213351 A2 EP 0213351A2 EP 86109738 A EP86109738 A EP 86109738A EP 86109738 A EP86109738 A EP 86109738A EP 0213351 A2 EP0213351 A2 EP 0213351A2
Authority
EP
European Patent Office
Prior art keywords
turbine
steam
output
signal
controller
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.)
Withdrawn
Application number
EP86109738A
Other languages
German (de)
English (en)
Other versions
EP0213351A3 (fr
Inventor
Paul Dipl.-Ing. Schmitz-Josten
Rainer Dipl.-Ing. Nürnberger
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.)
MAN GHH Immobilien GmbH
Original Assignee
MAN Gutehoffnungshutte GmbH
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 MAN Gutehoffnungshutte GmbH filed Critical MAN Gutehoffnungshutte GmbH
Publication of EP0213351A2 publication Critical patent/EP0213351A2/fr
Publication of EP0213351A3 publication Critical patent/EP0213351A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • F01K7/165—Controlling means specially adapted therefor

Definitions

  • the invention relates to a method and a device for controlling a steam turbine of a power plant block having a steam turbine and a steam generator, the output signal of the turbine controller acting on the actuating device of the turbine inlet valve arrangement.
  • the output signal is fed unaffected to the actuating device of the turbine inlet valve arrangement.
  • a relatively large deflection of the control difference of the power controller is required in order to adapt the manipulated variable to the required power and the required pressure.
  • the invention has for its object to provide a method or a device of the type mentioned, in which the turbine controller is relieved of such manipulated variable changes, which are already apparent from the change in the command variable.
  • the turbine valves already have their correct position due to this control variable and the output controller only has to make small corrections with its manipulated variable. Since the deviations between the power setpoint and the actual power are correspondingly smaller, the voltage regulator can be optimized better and the dynamics of the power control are improved.
  • the power plant block essentially consists of the steam generator (not shown), the steam turbine 1 with turbine inlet valve (s) 2 and the generator 3 (FIG. 2).
  • the electrical power output by the generator 3 is compared in a setpoint / actual value comparator 4 with a power setpoint turbine P elS .
  • the power setpoint P els can be the output signal of a setpoint control element -that is a controlled, trailing integrator, the output of the integrator following its input and the rate of change of the output variable being predetermined by a further input - or obtained in some other way.
  • the difference between the power setpoint P e , s and the actual power value P eli is fed via the signal line 5 to the input of a turbine power controller 6 with the usual PI behavior.
  • the output of the power regulator 6 is connected via the signal line 7 to the one positive input of the summing element 8.
  • This setpoint A s is supplied to the summing element 8 in the calculated amount or — as shown in the exemplary embodiment — reduced by a basic value valve opening A o .
  • the output signal of the summing element 8 actuates the actuating device 9 of the turbine inlet valve arrangement 2 in the known manner as the actuating signal Y T.
  • the difference between the target value A s and the basic value A o is calculated in a difference-forming element 10, the positive input of which is connected via the signal line 11 to a dividing element 12 and the negative input of which is connected via the signal line 13 to a signal generator 14, which has the basic value of valve opening A o -dh Value that corresponds to the inlet valve opening in sliding pressure operation of the power plant block.
  • the basic value of valve opening A o is also via signal line 15 fed to a divider 16, the other input of which is fed via the signal line 17 to the power setpoint turbine P els , the quotient being in the divider 16 block power setpoint and basic value valve opening is calculated, which corresponds to the steam pressure setpoint P s of the steam generator according to the previously mentioned equation.
  • the vapor pressure setpoint P s calculated in this way is fed via the signal line 18 to one input of a minimum value element 19 - element, whose output signal is equal to the smallest of all input signals.
  • the other input of the smallest value element 19 is connected via the signal line 20 to a signal generator 21 which delivers the highest operational steam pressure of the steam generator in the form of a signal.
  • the output of the minimum value element 19 is connected via the signal line 26 to the one input of a maximum value element 22, the other input of which is connected to a signal transmitter 23 which supplies the smallest operational steam pressure of the steam generator.
  • the steam pressure setpoint P s is limited via links 19 and 22 to operationally required limits.
  • the output of the largest value element 22 is connected via the signal line 24 to the one input of the dividing element 12, the other input of which is supplied with the block power setpoint P elS via the signal line 25, the quotient in the dividing element 12 block power setpoint and steam pressure setpoint is calculated.
  • the control system shown in FIG. 1 differs from the circuit described above in that the maximum value element 21, the minimum value element 19 together with the associated signal transmitters 21, 23 and the dividing element 16 have been dispensed with. If the signal line 26 is connected to a setpoint generator (not shown) and set to a fixed value, the control can also be used for turbines operated in fixed pressure.
  • the signal to be added to the output signal of the turbine controller 6 will preferably correspond, at least approximately, to the calculated value A s .
  • a not inconsiderable relief of the turbine controller is also possible with signals that deviate significantly from the calculated value A s ; the factor k mentioned in claim 1 can therefore have a value of approximately 0.7 as the lower limit and approximately 1.3 as an upper limit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Control Of Turbines (AREA)
EP86109738A 1985-08-07 1986-07-16 Procédé et dispositif de régulation d'une turbine à vapeur d'une centrale thermique Withdrawn EP0213351A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853528292 DE3528292A1 (de) 1985-08-07 1985-08-07 Verfahren und einrichtung zur regelung einer dampfturbine eines kraftwerkblocks
DE3528292 1985-08-07

Publications (2)

Publication Number Publication Date
EP0213351A2 true EP0213351A2 (fr) 1987-03-11
EP0213351A3 EP0213351A3 (fr) 1989-02-01

Family

ID=6277900

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86109738A Withdrawn EP0213351A3 (fr) 1985-08-07 1986-07-16 Procédé et dispositif de régulation d'une turbine à vapeur d'une centrale thermique

Country Status (7)

Country Link
US (1) US4728254A (fr)
EP (1) EP0213351A3 (fr)
JP (1) JPH0823282B2 (fr)
DE (1) DE3528292A1 (fr)
DK (1) DK163369C (fr)
IL (1) IL79636A (fr)
ZA (1) ZA865896B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19616178A1 (de) * 1995-07-14 1997-01-16 Ver Energiewerke Ag Verfahren zum Auf- und Ablasten des Hochdruckteiles einer mit einem Duo-Dampfkesselblock betriebenen Dampfturbine
CN101644173B (zh) * 2009-09-09 2011-09-14 东北电力大学 一种汽轮机配汽方式优化方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1270817A (fr) * 1986-04-29 1990-06-26 Bruce Edward Babb Derives de substitution hydroxyles de cyanoformazanes et leur utilisation dans des compositions et pour des methodes analytiques
DE4124678A1 (de) * 1990-08-21 1992-02-27 Abb Patent Gmbh Verfahren und einrichtung zur wiederherstellung der turbinenstellreserve nach dem ausregeln einer leistungs-sollwertaenderung in einem dampfkraftwerksblock
US5435138A (en) * 1994-02-14 1995-07-25 Westinghouse Electric Corp. Reduction in turbine/boiler thermal stress during bypass operation
US8532834B2 (en) * 2010-10-29 2013-09-10 Hatch Ltd. Method for integrating controls for captive power generation facilities with controls for metallurgical facilities
DE102013226551A1 (de) * 2013-12-19 2015-06-25 Siemens Aktiengesellschaft Regeleinrichtung und Verfahren umfassend eine Dampfturbine

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3572958A (en) * 1969-05-27 1971-03-30 Gen Electric Electrohydraulic control with throttle pressure compensator
SE395930B (sv) * 1975-12-19 1977-08-29 Stal Laval Turbin Ab Reglersystem for angturbinanleggning
CH621179A5 (fr) * 1977-06-29 1981-01-15 Bbc Brown Boveri & Cie
DE2812820C2 (de) * 1978-01-31 1986-04-03 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Regeleinrichtung für eine Dampfturbine
DE2823661B2 (de) * 1978-05-30 1980-07-17 Hitachi, Ltd., Tokio Regeleinrichtung für ein Turbinen-Kraftwerk
SU800764A1 (ru) * 1979-03-05 1981-01-30 Предприятие П/Я М-5539 Стенд дл аэрогазодинамическихиСпыТАНий
US4412780A (en) * 1981-03-27 1983-11-01 General Electric Company Rate initial pressure limiter
US4445045A (en) * 1982-08-30 1984-04-24 General Signal Corporation Unit controller for multiple-unit dispatch control
EP0108928B1 (fr) * 1982-11-11 1988-06-15 Siemens Aktiengesellschaft Méthode de régulation d'une centrale de force motrice
US4514642A (en) * 1983-02-04 1985-04-30 General Signal Corporation Unit controller for multiple-unit dispatch control
SU1110910A1 (ru) * 1983-04-11 1984-08-30 Харьковский Филиал Центрального Конструкторского Бюро Главэнергоремонта Минэнерго Ссср Система управлени теплофикационной установкой
JPS60627A (ja) * 1983-06-16 1985-01-05 Olympus Optical Co Ltd 光学式デイスクプレ−ヤにおける対物レンズの駆動装置
US4482814A (en) * 1983-10-20 1984-11-13 General Signal Corporation Load-frequency control system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19616178A1 (de) * 1995-07-14 1997-01-16 Ver Energiewerke Ag Verfahren zum Auf- und Ablasten des Hochdruckteiles einer mit einem Duo-Dampfkesselblock betriebenen Dampfturbine
DE19616178C2 (de) * 1995-07-14 1998-07-16 Ver Energiewerke Ag Verfahren zum Auf- und Ablasten des Hochdruckteiles einer mit einem Duo-Dampfkesselblock betriebenen Dampfturbine
CN101644173B (zh) * 2009-09-09 2011-09-14 东北电力大学 一种汽轮机配汽方式优化方法

Also Published As

Publication number Publication date
DE3528292C2 (fr) 1987-09-24
DK375286A (da) 1987-02-08
DE3528292A1 (de) 1987-02-19
EP0213351A3 (fr) 1989-02-01
JPS62103403A (ja) 1987-05-13
DK163369C (da) 1992-07-13
IL79636A0 (en) 1986-11-30
JPH0823282B2 (ja) 1996-03-06
ZA865896B (en) 1987-04-29
DK375286D0 (da) 1986-08-06
DK163369B (da) 1992-02-24
IL79636A (en) 1992-02-16
US4728254A (en) 1988-03-01

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Inventor name: NUERNBERGER, RAINER, DIPL.-ING.

Inventor name: SCHMITZ-JOSTEN, PAUL, DIPL.-ING.