WO2011018404A1 - Centrale électrique et procédé pour exploiter une centrale électrique - Google Patents

Centrale électrique et procédé pour exploiter une centrale électrique Download PDF

Info

Publication number
WO2011018404A1
WO2011018404A1 PCT/EP2010/061392 EP2010061392W WO2011018404A1 WO 2011018404 A1 WO2011018404 A1 WO 2011018404A1 EP 2010061392 W EP2010061392 W EP 2010061392W WO 2011018404 A1 WO2011018404 A1 WO 2011018404A1
Authority
WO
WIPO (PCT)
Prior art keywords
power plant
turbine
generator
electrical load
water
Prior art date
Application number
PCT/EP2010/061392
Other languages
German (de)
English (en)
Inventor
Ingo Förster
Arne Grassmann
Thomas Helmis
Christian Musch
Heinrich STÜER
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to EP10739368A priority Critical patent/EP2464832A1/fr
Priority to CN201080035691.9A priority patent/CN102472118B/zh
Publication of WO2011018404A1 publication Critical patent/WO2011018404A1/fr

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
    • F01K13/00—General layout or general methods of operation of complete plants
    • F01K13/02—Controlling, e.g. stopping or starting

Definitions

  • the invention relates to a power plant comprising a turbine and a generator driven by the turbine, which generates and delivers electrical energy to a network and a switch, which supplies the generator with an electric
  • the invention further relates to a method for running a power plant comprising a turbine and a generator connected to a grid.
  • Power plants are usually subdivided into base load, medium load and peak load systems. Depending on the assignment to the aforementioned plant types, the components of the plant are claimed differently. This means that the components are permanently stressed in a base load system. In contrast to the components in a peak load system, which are used rather sporadically.
  • the components in a peak load system which are used rather sporadically.
  • Base load systems usually comprise a turbine designed as a steam turbine and a generator driven by the turbine, which is designed as an electric generator and emits an electrical energy to a network, in particular an electrical consumer network.
  • Consumer network is supplied by several power plants with electrical energy, the frequency of the electrical energy must be strictly adhered to and is 50 Hz or 60 Hz.
  • the steam turbines are often used in continuous operation, they must be shut down for inspection or maintenance.
  • the electric generator must first be decoupled from the grid. The generator then runs idle with the steam turbine.
  • the stored kinetic rotational energy of the shaft is converted into bearing friction and ventilation losses, which reduces the speed of the shaft. Since the bearing friction and Other responsible for the reduction of speed losses are small compared to the rotational energy stored in the shaft resulting in long flow times of the turbine, which can be up to one hour.
  • the invention begins, whose object is to provide a method and a power plant, which makes it possible to accelerate the shutdown of the turbine.
  • a power plant comprising a turbine and a generator driven by the turbine which generates and delivers electrical energy to a network and a switch which connects the generator to an electrical consumer, the electrical consumer as a resistance element for heating water is formed.
  • the electrical load designed as a resistance element for heating water is connected to the generator as soon as the generator is decoupled from the mains.
  • the frequency of the generator is no longer synchronized with the network after decoupling from the electrical network and, for this reason, should no longer be connected to the electrical network.
  • the no longer grid-synchronous electrical power is expediently driven off via the resistance element.
  • the object directed to the method is achieved by a method for shutting down a power plant comprising a turbine and a generator which is connected to a network, wherein the generator is connected after decoupling of the network to an electrical load.
  • the immersion heater is arranged for heating water.
  • the electrical energy that is released via the immersion heater quasi retroactive, not released to the environment, but converted to heat water. It is also advantageous to arrange the immersion heater for heating cooling water.
  • the electrical load is arranged in the so-called hotwell in the capacitor.
  • Hotwell is the condensate collector.
  • FIG. 1 shows a schematically illustrated power plant 1.
  • This power plant 1 comprises a turbine 2, which is designed as a steam turbine.
  • the steam turbine 2 is supplied with live steam via a steam inlet 3 and a live steam line 4.
  • the steam turbine 2 the thermal energy of the live steam is converted into kinetic rotational energy.
  • the rotational kinetic energy is used to drive an electric generator 5.
  • the generator 5 is coupled in continuous operation to an electrical network, the frequency here being 50 Hz for the European market and 60 Hz for the US market.
  • other components are shown, which are needed for a power plant 1, such as a condenser 7, a steam generator 8 and a pump 9.
  • the live steam is generated via the main steam line 4 and the steam inlet 3 in the steam turbine 2 flows.
  • the steam flowing out of the steam turbine is again condensed to water, the water vapor escaping from the steam turbine 2 condensing via an external cooling line 10.
  • the condensate converted to water is finally fed via a pump 9 to the steam generator 8.
  • the steam turbine 2 is now traversed as follows.
  • a switch 11 of the electric generator 5 is connected to the electrical network 6 and connected to an electrical load 12, which is shown in FIG 1 in the dashed line 13.
  • the shutdown of the turbine 2 is initially done by simply switching off the steam supply. This means that the steam generated in the steam generator 8 is blocked by a valve and is no longer passed through the steam turbine 2.
  • the electrical load 12 connected to the generator 5 exerts, as it were, a braking effect on the electric generator 5, which acts as a further braking effect on the steam turbine 2. acts. This shortens the downtime of the steam turbine.
  • the coming out of the electric generator 5 electrical energy is no longer network synchronous after switching the switch 11 to the electrical load 12.
  • the electrical load 12 is designed as a resistance element and can be used as a quasi-oversized immersion heater corresponding to the heating of water.
  • the immersion heater 12 are arranged directly in the condensate in the so-called hot well to evaporate the condensate. This steam is then knocked off again as water at the condenser tubes 14, whereby thus the energy is discharged from the power plant 1 to the environment.
  • the electrical load 12 designed as immersion heater can also be arranged in a water chamber of the cooling water circuit, which, however, is not shown in FIG. 1 and FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Eletrric Generators (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Control Of Turbines (AREA)

Abstract

L'invention concerne une centrale électrique (1) et un procédé pour exploiter une centrale électrique, la turbine (2) disposée dans la centrale électrique (1) devant être déconnectée le plus rapidement possible à des fins de révision ou de maintenance, le générateur (5) étant dissocié à cet effet du réseau électrique et étant raccordé par l'intermédiaire d'un interrupteur (11) à un consommateur électrique conçu comme thermoplongeur et le thermoplongeur étant utilisé pour réchauffer de l'eau, le temps d'arrêt de la turbine (2) pouvant être encore raccourci.
PCT/EP2010/061392 2009-08-12 2010-08-05 Centrale électrique et procédé pour exploiter une centrale électrique WO2011018404A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10739368A EP2464832A1 (fr) 2009-08-12 2010-08-05 Centrale électrique et procédé pour exploiter une centrale électrique
CN201080035691.9A CN102472118B (zh) 2009-08-12 2010-08-05 发电厂设备和用于运行发电厂设备的方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP09010420.9 2009-08-12
EP09010420A EP2295733A1 (fr) 2009-08-12 2009-08-12 Centrale et procédé de fonctionnement d'une centrale

Publications (1)

Publication Number Publication Date
WO2011018404A1 true WO2011018404A1 (fr) 2011-02-17

Family

ID=43003476

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/061392 WO2011018404A1 (fr) 2009-08-12 2010-08-05 Centrale électrique et procédé pour exploiter une centrale électrique

Country Status (3)

Country Link
EP (2) EP2295733A1 (fr)
CN (1) CN102472118B (fr)
WO (1) WO2011018404A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2447482A1 (fr) * 2010-10-29 2012-05-02 Siemens Aktiengesellschaft Procédé destiné à l'arrêt d'un turbogénérateur
US20150345340A1 (en) * 2012-12-28 2015-12-03 Mitsubishi Heavy Industries, Ltd. Power generation system
EP3460206A1 (fr) * 2017-09-21 2019-03-27 Siemens Aktiengesellschaft Procédé de fonctionnement d'une turbine à vapeur
EP3647553A1 (fr) * 2018-11-05 2020-05-06 Orcan Energy AG Alimentation d'un convertisseur d'énergie électromécanique en énergie électrique à partir d'un processus de circuit thermodynamique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2644841A1 (fr) 2012-03-29 2013-10-02 Alstom Technology Ltd Procédé de fonctionnement d'un moteur à turbine après l'arrêt de flamme

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0007389A1 (fr) * 1978-05-08 1980-02-06 Carrier Corporation Système et procédé de récupération d'énergie
DE19839636A1 (de) * 1998-08-31 2000-03-02 Asea Brown Boveri Kraftwerk mit einem von einer Turbine angetriebenen Generator sowie Verfahren zum Betrieb eines solchen Kraftwerkes
DE202004003772U1 (de) * 2004-03-09 2004-06-03 Enginion Ag Anordnung zur Drehzahlstabilisierung von Gleichstromgeneratoren
DE102004016450A1 (de) * 2004-03-31 2005-10-20 Alstom Technology Ltd Baden Generatorbeschaltung und Verfahren zur Erzeugung einer regelbaren Bremsleistung in einer Turbinenanlage
WO2009038562A2 (fr) * 2007-09-19 2009-03-26 Utc Power Corporation Prévention d'emballement d'un générateur entraîné par une turbine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201004553Y (zh) * 2007-01-08 2008-01-09 李永吉 电力输配电系统弧光过电压限制及小电流接地选线综合装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0007389A1 (fr) * 1978-05-08 1980-02-06 Carrier Corporation Système et procédé de récupération d'énergie
DE19839636A1 (de) * 1998-08-31 2000-03-02 Asea Brown Boveri Kraftwerk mit einem von einer Turbine angetriebenen Generator sowie Verfahren zum Betrieb eines solchen Kraftwerkes
DE202004003772U1 (de) * 2004-03-09 2004-06-03 Enginion Ag Anordnung zur Drehzahlstabilisierung von Gleichstromgeneratoren
DE102004016450A1 (de) * 2004-03-31 2005-10-20 Alstom Technology Ltd Baden Generatorbeschaltung und Verfahren zur Erzeugung einer regelbaren Bremsleistung in einer Turbinenanlage
WO2009038562A2 (fr) * 2007-09-19 2009-03-26 Utc Power Corporation Prévention d'emballement d'un générateur entraîné par une turbine

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2447482A1 (fr) * 2010-10-29 2012-05-02 Siemens Aktiengesellschaft Procédé destiné à l'arrêt d'un turbogénérateur
WO2012055702A1 (fr) * 2010-10-29 2012-05-03 Siemens Aktiengesellschaft Procédé de mise à l'arrêt d'un turbogénérateur
US20150345340A1 (en) * 2012-12-28 2015-12-03 Mitsubishi Heavy Industries, Ltd. Power generation system
EP2940252A4 (fr) * 2012-12-28 2016-11-23 Mitsubishi Heavy Ind Ltd Système de production d'énergie
US9810089B2 (en) 2012-12-28 2017-11-07 Mitsubishi Heavy Industries, Ltd. Power generation system
EP3460206A1 (fr) * 2017-09-21 2019-03-27 Siemens Aktiengesellschaft Procédé de fonctionnement d'une turbine à vapeur
WO2019057423A1 (fr) 2017-09-21 2019-03-28 Siemens Aktiengesellschaft Procédé de fonctionnement d'une turbine à vapeur
US11081990B2 (en) 2017-09-21 2021-08-03 Siemens Energy Global GmbH & Co. KG Method for operating a steam turbine
EP3647553A1 (fr) * 2018-11-05 2020-05-06 Orcan Energy AG Alimentation d'un convertisseur d'énergie électromécanique en énergie électrique à partir d'un processus de circuit thermodynamique
WO2020094418A1 (fr) * 2018-11-05 2020-05-14 Orcan Energy Ag Alimentation d'un convertisseur d'énergie électromécanique en énergie électrique à partir d'un circuit thermodynamique

Also Published As

Publication number Publication date
EP2464832A1 (fr) 2012-06-20
CN102472118A (zh) 2012-05-23
CN102472118B (zh) 2016-03-02
EP2295733A1 (fr) 2011-03-16

Similar Documents

Publication Publication Date Title
EP1525396B2 (fr) Turbine eolienne a circuit de refroidissement ferme
DE10000370B4 (de) Windenergieanlage mit einem geschlossenen Kühlkreislauf
DE102004020753A1 (de) Vorrichtung zur Ausnutzung der Abwärme von Verdichtern
WO2011018404A1 (fr) Centrale électrique et procédé pour exploiter une centrale électrique
WO2014191157A2 (fr) Pompe à chaleur équipée d'une première machine thermique à énergie fluidique et d'une seconde machine thermique à énergie fluide montées en circuit
EP2100010A2 (fr) Aube de turbine
WO1999028599A1 (fr) Turbogenerateur a paliers et soupapes lubrifies par eau
EP2288791B1 (fr) Utilisation d'un dispositif de turbine à gaz et à vapeur au moyen d'un convertisseur de fréquence
EP1854964A1 (fr) Utilisation de la turbine à vapeur pour la régulation primaire de la fréquence dans des installations de production d'énergie
EP2907980A1 (fr) Procédé de fonctionnement d'une installation de turbine à gaz et à vapeur pour le support de fréquence
EP2808501A1 (fr) Procédé destiné au fonctionnement d'une centrale électrique à cycle combiné
EP1904731B1 (fr) Installation combinée de turbines à gaz et à vapeur et son procédé de fonctionnement
EP2829691A1 (fr) Procédé destiné au fonctionnement d'une centrale à gaz à cycle combiné
DE102007035058A1 (de) Einrichtung und Verfahren zur Stromerzeugung
WO2012055702A1 (fr) Procédé de mise à l'arrêt d'un turbogénérateur
DE102018209204B4 (de) Betriebsverfahren für einen Turbosatz, Turbosatz und Niederdruckdampfturbinenanlage
DE102014215672A1 (de) Wärmekraftwerk mit einer Dampfturbine
EP2995785A1 (fr) Procédé destiné au fonctionnement d'une centrale électrique
WO2015028399A1 (fr) Éolienne équipée d'un module d'auto-alimentation
EP2657467A1 (fr) Refroidissement forcé pour installations de turbines à vapeur
DE102007027349B4 (de) Einrichtung und Verfahren zur Stromerzeugung aus Wärme
EP2808496A1 (fr) Centrale électrique à cycle combiné disposant d'un convertisseur de démarrage
EP3183436A1 (fr) Procede de réduction du processus de démarrage d'une turbine à vapeur
EP1529333A1 (fr) Generateur dynamoelectrique
DE102012204288A1 (de) Dampfturbine und Verfahren zum Betrieb einer Dampfturbine

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201080035691.9

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10739368

Country of ref document: EP

Kind code of ref document: A1

REEP Request for entry into the european phase

Ref document number: 2010739368

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2010739368

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE