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EP3012419A1 - Couplage d'une turbine à gaz et d'une turbine à vapeur à un angle de couplage cible avec déplacement de l'angle de rotation de rotor - Google Patents

Couplage d'une turbine à gaz et d'une turbine à vapeur à un angle de couplage cible avec déplacement de l'angle de rotation de rotor Download PDF

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Publication number
EP3012419A1
EP3012419A1 EP14189509.4A EP14189509A EP3012419A1 EP 3012419 A1 EP3012419 A1 EP 3012419A1 EP 14189509 A EP14189509 A EP 14189509A EP 3012419 A1 EP3012419 A1 EP 3012419A1
Authority
EP
European Patent Office
Prior art keywords
excitation
gas turbine
excitation current
angle
changed
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Withdrawn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
EP14189509.4A
Other languages
German (de)
English (en)
Inventor
Martin Berning
Marc Diefenbach
Marcel Langer
Martin Ophey
Dennis Schlüter
Michael Winkel
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
Siemens Corp
Original Assignee
Siemens AG
Siemens 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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to EP14189509.4A priority Critical patent/EP3012419A1/fr
Priority to CN201580057131.6A priority patent/CN107075972B/zh
Priority to KR1020177013698A priority patent/KR20170073646A/ko
Priority to EP15774921.9A priority patent/EP3183434B1/fr
Priority to JP2017539505A priority patent/JP6518775B2/ja
Priority to US15/517,321 priority patent/US10253655B2/en
Priority to PL15774921T priority patent/PL3183434T3/pl
Priority to PCT/EP2015/072913 priority patent/WO2016062530A1/fr
Priority to RU2017113069A priority patent/RU2675023C2/ru
Publication of EP3012419A1 publication Critical patent/EP3012419A1/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Withdrawn legal-status Critical Current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
    • 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
    • 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
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/12—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engines being mechanically coupled
    • F01K23/16—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engines being mechanically coupled all the engines being turbines

Definitions

  • the gas turbine and the steam turbine are coupled by means of a clutch.
  • the steam turbine is accelerated in a suitable manner.
  • the frequency of the gas turbine is given insofar as it must match the frequency of the power grid into which the feed takes place.
  • the object of the invention is to provide a possibility for improved coupling with target dome angle.
  • the solution to this problem can be found in particular in the independent claims.
  • the dependent claims indicate advantageous developments.
  • the description and drawings contain further information.
  • step a) and step b) at least partially overlap in time.
  • Step b) is always carried out when it is not possible or only difficult, for example not in a short time, to reach the target dome angle with step a).
  • Step a) is known, so that there are no further explanations.
  • Step b) will be explained in more detail.
  • the so-called rotor angle can be influenced.
  • Under the Polradwinkel, also called load angle is generally the angle to understand, under which the pole of a synchronous machine leads the synchronous rotating field. The details will not be discussed here because they are known to those of ordinary skill in the art. It is important to understand that by changing the rotor angle, the reactive power changes, but it remains possible to provide the required active power. By changing the Polradwinkels it is possible to meet the requirement that the generator rotates at mains frequency and at the same time a change in the angular position of the generator and thus the gas turbine can be achieved.
  • the invention thus makes it possible to influence not only the angular position of the steam turbine, but also the angular position of the gas turbine. Although usually only an influence of a few degrees is possible, yet an additional degree of freedom is created, which can greatly facilitate and accelerate the coupling with target dome angle if necessary.
  • the rotor angle depends on the ratio of active power and reactive power. Since the ratio of active power and reactive power depends on the excitation, ie on the excitation current, the corresponding choice of reactive power for a given active power is basically equivalent to saying that the excitation current should be selected accordingly.
  • the relationships make it clear that it is not necessary to detect the rotor angle directly. It is basically enough given active power to change the reactive power accordingly. This can be used in the regulation on the already detected variables active power and reactive power.
  • the relationships between active power, reactive power and rotor angle can be taken from a so-called performance diagram, as will be explained in more detail later.
  • the excitation current is increased and as the gas turbine retards, the excitation current is decreased.
  • the rotor angle can be lowered. So it is the angle by which the pole precedes the synchronous rotating field, lowered. The generator and thus the gas turbine are so, so to speak, turned back a little, so that eliminates the Vorausilen the gas turbine with respect to the Zielkuppelwinkel.
  • the change in the excitation current is used to compensate for fluctuations in the line frequency, which complicate the achievement of the target coupling angle.
  • the aim is to keep the grid frequency as constant as possible, in Germany, for example, a value of 50 hertz is desired, small fluctuations still occur. If these occur during coupling, that is to say just in advance of the actual coupling while the steam turbine is being accelerated or decelerated, it is often no longer possible to adapt the acceleration of the steam turbine accordingly.
  • the change of the excitation current and the concomitant change of the Polradwinkels and thus the change of the angular position of the gas turbine is very important, if not indispensable to engage quickly with target dome angle.
  • the change of the excitation current of the angle of the gas turbine can be changed by up to 5 °.
  • the achievable angle change is manageable, but still important. It remains that the essential degree of freedom in coupling by the appropriate acceleration of the steam turbine and the choice of dome time is given.
  • the excitation voltage is changed to change the excitation current. This allows influencing the excitation current in a simple manner.
  • the above considerations may also be used for a method of disengaging a steam turbine and a gas turbine connected to a generator.
  • the generator in turn has an excitation winding whose excitation can be changed by changing an excitation current flowing through the exciter winding.
  • the change of the rotor angle allows a rotation of the gas turbine. In certain situations, this may be advantageous when disengaging, so when releasing the coupling between the gas turbine and steam turbine. Above all, it is often possible to speed up the disengagement. This reduces the wear of the clutch.
  • control device for a single shaft turbine set with a gas turbine, a steam turbine and a generator.
  • the regulating device is set up such that the method for coupling and / or disengaging described above can be carried out. It often suffice marginal changes of the already existing control device. In many cases you can limit yourself to another programming. The implementation of the method according to the invention thus requires only very manageable effort. Normally, a retrofitting of existing single-shaft turbo sets, in fact the associated control device easily possible.
  • Figure 1 shows a performance diagram in which the relationships between reactive power, active power and rotor angle are shown.
  • the active power is plotted in MW.
  • the reactive power is entered in the Mvar on the high-value axis.
  • Line 1 runs at reactive power 0.
  • the reactive power is negative, for the above positive.
  • the edges ending at the edge stand for certain values of the Cos phi, where phi is the angle between the voltage induced in the generator and the resulting current in the phasor diagram.
  • the arrows 3, 4 and 5 emanating from an origin 2 at the bottom left. As can be seen, these ends at operating points with the same active power but different reactive power.
  • the distance 6 connecting the two end points of the arrows 3 and 5 is a typical range in which the reactive power can be adjusted while the active power remains the same.
  • the angle between the arrows 3, 4 and 5 and the high-value axis is the respective Polradwinkel.
  • the location of the origin 2 is determined metrologically.
  • the rotor angle can be read off in the performance diagram in which an arrow is drawn from the origin 2 to the respective operating point and the angle of this arrow to the high-value axis is determined.
  • the rotor angle must be reduced by 2 °.
  • the reactive power is to be increased for this purpose. It is the excitation, so the excitation voltage and thus reduce the excitation current so far, until the rotor angle is 42 °. It is therefore possible in a simple manner by changing the reactive power, which can be brought about by changed excitation, to influence the Polradwinkel and thus to influence the target dome angle in an improved manner.

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)
  • Control Of Turbines (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
EP14189509.4A 2014-10-20 2014-10-20 Couplage d'une turbine à gaz et d'une turbine à vapeur à un angle de couplage cible avec déplacement de l'angle de rotation de rotor Withdrawn EP3012419A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP14189509.4A EP3012419A1 (fr) 2014-10-20 2014-10-20 Couplage d'une turbine à gaz et d'une turbine à vapeur à un angle de couplage cible avec déplacement de l'angle de rotation de rotor
CN201580057131.6A CN107075972B (zh) 2014-10-20 2015-10-05 借助于调节转子角以目标联接角联接燃气轮机和蒸汽轮机
KR1020177013698A KR20170073646A (ko) 2014-10-20 2015-10-05 극성 휠 각도의 조정에 의한 목표 결합 각도로의 가스 터빈 및 증기 터빈의 결합
EP15774921.9A EP3183434B1 (fr) 2014-10-20 2015-10-05 Couplage d'une turbine à gaz et d'une turbine à vapeur à un angle de couplage cible avec déplacement de l'angle de rotation de rotor
JP2017539505A JP6518775B2 (ja) 2014-10-20 2015-10-05 極ホイール角を調節することによって目標連結角でガスタービンと蒸気タービンとを連結する方法
US15/517,321 US10253655B2 (en) 2014-10-20 2015-10-05 Coupling a gas turbine and a steam turbine with a target coupling angle by adjusting the polar wheel angle
PL15774921T PL3183434T3 (pl) 2014-10-20 2015-10-05 Sprzęganie turbiny gazowej i turbiny parowej z docelowym kątem sprzęgania z regulacją kąta wieńca biegunowego
PCT/EP2015/072913 WO2016062530A1 (fr) 2014-10-20 2015-10-05 Accouplement d'une turbine à gaz et d'une turbine à vapeur avec angle d'accouplement cible et réglage de l'angle de rotor
RU2017113069A RU2675023C2 (ru) 2014-10-20 2015-10-05 Соединение газовой турбины и паровой турбины под заданным углом с регулировкой роторного угла

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14189509.4A EP3012419A1 (fr) 2014-10-20 2014-10-20 Couplage d'une turbine à gaz et d'une turbine à vapeur à un angle de couplage cible avec déplacement de l'angle de rotation de rotor

Publications (1)

Publication Number Publication Date
EP3012419A1 true EP3012419A1 (fr) 2016-04-27

Family

ID=51730442

Family Applications (2)

Application Number Title Priority Date Filing Date
EP14189509.4A Withdrawn EP3012419A1 (fr) 2014-10-20 2014-10-20 Couplage d'une turbine à gaz et d'une turbine à vapeur à un angle de couplage cible avec déplacement de l'angle de rotation de rotor
EP15774921.9A Not-in-force EP3183434B1 (fr) 2014-10-20 2015-10-05 Couplage d'une turbine à gaz et d'une turbine à vapeur à un angle de couplage cible avec déplacement de l'angle de rotation de rotor

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP15774921.9A Not-in-force EP3183434B1 (fr) 2014-10-20 2015-10-05 Couplage d'une turbine à gaz et d'une turbine à vapeur à un angle de couplage cible avec déplacement de l'angle de rotation de rotor

Country Status (8)

Country Link
US (1) US10253655B2 (fr)
EP (2) EP3012419A1 (fr)
JP (1) JP6518775B2 (fr)
KR (1) KR20170073646A (fr)
CN (1) CN107075972B (fr)
PL (1) PL3183434T3 (fr)
RU (1) RU2675023C2 (fr)
WO (1) WO2016062530A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1911939A1 (fr) * 2006-10-09 2008-04-16 Siemens Aktiengesellschaft Réglage de l'accouplement par l'angle d'accouplement

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5483147A (en) * 1992-07-10 1996-01-09 Massachusetts Institute Of Technology Decentralized excitation control for an electrical power utility system
RU2248453C2 (ru) * 1998-08-31 2005-03-20 III Вильям Скотт Роллинс Электростанция и способ получения энергии с комбинированием циклов
US6230480B1 (en) 1998-08-31 2001-05-15 Rollins, Iii William Scott High power density combined cycle power plant
JP2003013709A (ja) * 2001-06-28 2003-01-15 Mitsubishi Heavy Ind Ltd クラッチ嵌合検出装置及びこれを備えた一軸コンバインドプラント
JP3716244B2 (ja) 2002-09-19 2005-11-16 三菱重工業株式会社 クラッチを備えた一軸コンバインドプラントの運転制御装置及び運転制御方法。
JP3930462B2 (ja) * 2003-08-01 2007-06-13 株式会社日立製作所 一軸コンバインドサイクル発電設備及びその運転方法
US8176723B2 (en) * 2008-12-31 2012-05-15 General Electric Company Apparatus for starting a steam turbine against rated pressure
EP2447482A1 (fr) * 2010-10-29 2012-05-02 Siemens Aktiengesellschaft Procédé destiné à l'arrêt d'un turbogénérateur
JP5710530B2 (ja) 2012-03-19 2015-04-30 株式会社協和コンサルタンツ 風力発電システム
WO2014125592A1 (fr) * 2013-02-14 2014-08-21 三菱重工業株式会社 Ferme éolienne, son procédé d'exploitation et dispositif de commande
CN107078615B (zh) * 2014-07-18 2019-07-26 Eip技术股份有限公司 直接风能发电

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1911939A1 (fr) * 2006-10-09 2008-04-16 Siemens Aktiengesellschaft Réglage de l'accouplement par l'angle d'accouplement

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
HOFMANN W: "BLINDLEISTUNG - SICHTBAR GEMACHT", ELEKTROTECHNISCHE ZEITSCHRIFT - ETZ, VDE VERLAG GMBH, BERLIN, DE, vol. 120, no. 10, 1 May 1999 (1999-05-01), pages 18,20/21, XP000927072, ISSN: 0948-7387 *
STOLZLE K ET AL: "SYNCHRONISIERENDE, SELBSTSCHALTENDE KUPPLUNGEN FUR EIN-WELLEN- COGENERATION-KRAFTWERKE", ANTRIEBSTECHNIK, VEREINIGTE FACHVERLAGE, MAINZ, DE, vol. 34, no. 8, 1 August 1995 (1995-08-01), pages 46 - 49, XP000517052, ISSN: 0722-8546 *

Also Published As

Publication number Publication date
EP3183434A1 (fr) 2017-06-28
CN107075972B (zh) 2019-10-18
PL3183434T3 (pl) 2019-05-31
CN107075972A (zh) 2017-08-18
RU2675023C2 (ru) 2018-12-14
EP3183434B1 (fr) 2018-06-27
JP6518775B2 (ja) 2019-05-22
US10253655B2 (en) 2019-04-09
WO2016062530A1 (fr) 2016-04-28
RU2017113069A3 (fr) 2018-10-17
JP2017534242A (ja) 2017-11-16
KR20170073646A (ko) 2017-06-28
RU2017113069A (ru) 2018-10-17
US20170306800A1 (en) 2017-10-26

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