EP1319117A1 - Procede de regulation d'une turbine a vapeur et turbine a vapeur correspondante - Google Patents

Procede de regulation d'une turbine a vapeur et turbine a vapeur correspondante

Info

Publication number
EP1319117A1
EP1319117A1 EP01983470A EP01983470A EP1319117A1 EP 1319117 A1 EP1319117 A1 EP 1319117A1 EP 01983470 A EP01983470 A EP 01983470A EP 01983470 A EP01983470 A EP 01983470A EP 1319117 A1 EP1319117 A1 EP 1319117A1
Authority
EP
European Patent Office
Prior art keywords
control
valves
steam turbine
valve
output signal
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
EP01983470A
Other languages
German (de)
English (en)
Other versions
EP1319117B1 (fr
Inventor
Heinrich Oeynhausen
Richard Steinborn
Heribert Werthes
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to EP01983470A priority Critical patent/EP1319117B1/fr
Publication of EP1319117A1 publication Critical patent/EP1319117A1/fr
Application granted granted Critical
Publication of EP1319117B1 publication Critical patent/EP1319117B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/18—Final actuators arranged in stator parts varying effective number of nozzles or guide conduits, e.g. sequentially operable valves for steam turbines
    • 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
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/141—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path
    • F01D17/145—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path by means of valves, e.g. for steam turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/31—Application in turbines in steam turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2270/00—Control
    • F05D2270/01—Purpose of the control system
    • F05D2270/05—Purpose of the control system to affect the output of the engine

Definitions

  • the invention relates to a method for regulating a steam turbine, in which steam is fed to the steam turbine via at least three valves.
  • the invention further relates to a steam turbine with a valve group for regulating the steam inlet.
  • a method for controlling a steam turbine emerges from the article "Practical design of speed and power regulators for steam turbines" by Johannes Dastych and Heinz Unbehauen, Martin Bennauer and Heribert Werthes, ATP 41 (1999), No. 5.
  • a steam turbine is based on speed or power regulated.
  • the control circuit for speed and power according to Figure 2 consists of function blocks such as speed / power controller (D- / LR), live steam control valve (FD-STV), interception control valve (AF-STV), steam generator (DE) and turbine (T) as well elementary blocks, such as Constant, ramp and
  • the turbo set is supplied with steam from a steam generator, the steam supply being regulated via control valves in such a way that the necessary power is available.
  • the speed and the power are regulated via a common speed / power controller both for load operation with selectable statics and for regulating the speed when idling.
  • the output signal of the speed / power controller acts on the live steam and interception control valves.
  • Such a control of a steam turbine requires a very complex control circuit as well as control valves which allow a sufficiently fast control. So far, only hydraulically driven control valves for steam inlet control have been used, since a sufficiently rapid adjustment of the valve lift is only possible via such a hydraulic drive.
  • control valve lift set a certain value of their valve lift.
  • the maintenance of a control difference value of approximately zero is carried out by one, possibly also several, control valves. This means that at least two control valves can be replaced by much simpler control valves, which considerably simplifies the control circuit.
  • control valves are preferably driven by an electric motor.
  • An electric motor drive offers considerable cost advantages over an electro-hydraulic drive, for example.
  • the risk of fire is reduced by the absence of hydraulic oil.
  • the lower dynamic range of the electromotive drive is also sufficient for use in the control process.
  • Control valves works together. With regard to improved availability, however, it is advantageous to use two control valves and two control valves.
  • the method is preferably designed when the steam turbine is consuming power so that the control valve first opens and one of the control valves opens when a predetermined first value of a controller output signal used for controlling the control valve is exceeded and when there is a positive control difference.
  • the first value is more preferably approximately a quarter of the maximum controller output signal.
  • the positive control difference indicates that the desired value for the power or the speed has not yet been reached.
  • the second output value of the controller output signal is exceeded and if there is a positive the second control valve.
  • the second value of the controller output signal is larger than the first value of the controller output signal.
  • a further stage in power consumption is thus reached in which the third valve, namely the second control valve, is switched on.
  • the second value of the controller output signal is more preferably approximately half the maximum value of the controller output signal.
  • the second control valve opens when a third value of the controller output signal is exceeded and when there is a positive control difference.
  • the third value of the controller output signal is above the value of the second value of the controller output signal.
  • a further stage in the power consumption of the steam turbine is thus reached, in which the second control valve is activated. With a controller output signal of 100%, all valves are fully open.
  • the control difference indicates the difference between the setpoint and the actual value of the speed or the power of the steam turbine. If there is a large control difference, the control valves are moved into their target position at high speed. With a smaller control difference, a lower actuating speed is sufficient.
  • a frequency converter in particular, can specify the setting direction for the control valves depending on the sign of the control difference.
  • the object directed at a steam turbine is achieved according to the invention by specifying a steam turbine with a valve. til michange for regulating the steam inlet, which valve group comprises a control valve and at least two control valves.
  • the control valves preferably have an electric motor drive.
  • FIG 1 shows schematically a steam turbine system.
  • a steam turbine 1 is supplied with steam from a steam generator 3 via the feed line 5.
  • a valve group 7 is installed in the supply line 5.
  • the valve group 7 comprises a first control valve 9 and a second control valve 11.
  • the valve group 7 further comprises a first control valve 13 and a second control valve 15.
  • the amount of steam introduced into the steam turbine 1 is regulated via the valve group 7. This takes place as a function of the power or speed desired for the steam turbine 1. This is explained in more detail with reference to FIGS. 2 and 3.
  • Figure 2 shows the valve group 7 from Figure 1 with the associated control circuit.
  • a controller 21 generates a controller output signal identifying a control difference.
  • the controller output signal is fed to a first servo amplifier 23 of the first control valve 9.
  • the controller output signal is also fed to a second servo amplifier 27 of the second control valve 11.
  • the controller output signal is also fed to a first frequency converter 25 of the first control valve 13.
  • the controller output signal is also fed to a second frequency converter 29 of the second control valve 15.
  • FIG. 3 shows an example of the valve lift of each of the valves 9, 11, 13, 15 as a function of the controller output signal in a diagram. The information is shown in percent of the respective maximum value.
  • the characteristic curve 9K indicates the course of the valve lift 33 of the first regulator valve 9 as a function of the regulator output signal 31.
  • the characteristic curve 13K indicates the corresponding characteristic curve for the first control valve 13.
  • the characteristic curve 11K indicates the corresponding characteristic curve for the second control valve 11.
  • the characteristic curve 15K indicates the corresponding characteristic curve for the second control valve 15.
  • the first control valve 9 opens in proportion to the size of the controller output signal 31. At a value of 22.5% of the controller output signal 31, the first control valve 13 opens.
  • the valve lift 33 is for the first control valve 9 and for the first control valve 13 at 100%. From this point on, the second control valve 11 opens. At a value of 72.5%, the second control valve 15 is finally switched on. At a value of 100% of the controller output signal 31, all valves 9, 11, 13, 15 are completely open.
  • the first control valve 9 is used for starting, ramping up to the nominal speed and synchronization.
  • the size of the control difference determines the opening speed of the control valves 13, 15 to a negative control difference.
  • the size of the negative control difference determines the closing speed of the control valves. Because of the lower control dynamics of the control valves, which are driven by an electric motor in the example shown, the response value for a "closing" switching operation when the load is shed can be different for the control valves 9, 11 and the control valves 13, 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Turbines (AREA)

Abstract

L'invention concerne un procédé permettant de réguler une turbine à vapeur (1), selon lequel de la vapeur est acheminée jusqu'à la turbine à vapeur (1) par l'intermédiaire d'au moins trois soupapes. Une des soupapes est régulée comme une soupape de régulation (9, 11) et au moins deux soupapes sont pilotées comme des soupapes de commande (13, 15).
EP01983470A 2000-09-20 2001-09-07 Procede de regulation d'une turbine a vapeur et turbine a vapeur correspondante Expired - Lifetime EP1319117B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP01983470A EP1319117B1 (fr) 2000-09-20 2001-09-07 Procede de regulation d'une turbine a vapeur et turbine a vapeur correspondante

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP00120574 2000-09-20
EP00120574A EP1191190A1 (fr) 2000-09-20 2000-09-20 Procédé de régulation d'une turbine à vapeur et turbine à vapeur
PCT/EP2001/010358 WO2002025067A1 (fr) 2000-09-20 2001-09-07 Procede de regulation d'une turbine a vapeur et turbine a vapeur correspondante
EP01983470A EP1319117B1 (fr) 2000-09-20 2001-09-07 Procede de regulation d'une turbine a vapeur et turbine a vapeur correspondante

Publications (2)

Publication Number Publication Date
EP1319117A1 true EP1319117A1 (fr) 2003-06-18
EP1319117B1 EP1319117B1 (fr) 2010-06-02

Family

ID=8169887

Family Applications (2)

Application Number Title Priority Date Filing Date
EP00120574A Withdrawn EP1191190A1 (fr) 2000-09-20 2000-09-20 Procédé de régulation d'une turbine à vapeur et turbine à vapeur
EP01983470A Expired - Lifetime EP1319117B1 (fr) 2000-09-20 2001-09-07 Procede de regulation d'une turbine a vapeur et turbine a vapeur correspondante

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP00120574A Withdrawn EP1191190A1 (fr) 2000-09-20 2000-09-20 Procédé de régulation d'une turbine à vapeur et turbine à vapeur

Country Status (6)

Country Link
EP (2) EP1191190A1 (fr)
JP (1) JP4695822B2 (fr)
CN (1) CN100335751C (fr)
DE (1) DE50115502D1 (fr)
ES (1) ES2344591T3 (fr)
WO (1) WO2002025067A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1528446A1 (fr) * 2003-10-29 2005-05-04 Siemens Aktiengesellschaft Méthode et contrôleur pour le positionnement d'un actionneur et utilisation du contrôleur
DE102005033292B4 (de) * 2005-07-16 2007-07-26 I.N.T.-Rickert GmbH Ingenieurbüro für neue Technologien Vorrichtung zum Auftragen von Kleb- oder Dichtstoffen
JP2013079580A (ja) * 2011-09-30 2013-05-02 Toshiba Corp コンバインド発電設備の運転方法及びコンバインド発電設備
CN103244203B (zh) * 2013-05-21 2014-12-03 国家电网公司 一种节流阀系统及其工作方法
CN108252752B (zh) * 2017-12-22 2020-05-12 东方电气集团东方汽轮机有限公司 一种汽轮机进汽调节方法
WO2019217635A1 (fr) * 2018-05-09 2019-11-14 Abb Schweiz Ag Détection et utilisation de vitesse de turbine
CN109356674A (zh) * 2018-12-25 2019-02-19 大庆特博科技发展有限公司 一种可调喷嘴数量的有机工质透平

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE272691C (fr) *
NL26523C (fr) * 1926-08-28 1900-01-01
NL29786C (fr) * 1929-12-30 1932-12-15
FR787271A (fr) * 1934-06-21 1935-09-19 Rateau Sa Dispositif de réglage des turbines à vapeur ou à gaz
US3763894A (en) * 1971-06-16 1973-10-09 Westinghouse Electric Corp Sequentially operable control valve for a steam turbine
US4245162A (en) * 1973-08-15 1981-01-13 Westinghouse Electric Corp. Steam turbine power plant having improved testing method and system for turbine inlet valves associated with downstream inlet valves preferably having feedforward position managed control
AU537607B2 (en) * 1980-12-02 1984-07-05 Hitachi Limited Combined valve for use in a reheating steam turbine
JPS57188705A (en) * 1981-05-15 1982-11-19 Toshiba Corp Steam turbine
US4604028A (en) * 1985-05-08 1986-08-05 General Electric Company Independently actuated control valves for steam turbine
JPH0261101U (fr) * 1988-10-26 1990-05-07
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
WO1998013633A1 (fr) * 1996-09-26 1998-04-02 Siemens Aktiengesellschaft Mecanisme de commande pour clapet de turbine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0225067A1 *

Also Published As

Publication number Publication date
JP2004518050A (ja) 2004-06-17
DE50115502D1 (de) 2010-07-15
EP1319117B1 (fr) 2010-06-02
CN100335751C (zh) 2007-09-05
EP1191190A1 (fr) 2002-03-27
ES2344591T3 (es) 2010-09-01
JP4695822B2 (ja) 2011-06-08
WO2002025067A1 (fr) 2002-03-28
CN1461374A (zh) 2003-12-10

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