JP5550552B2 - コンプレッサにアクティブ安定化を施すようにしたガスタービンの制御 - Google Patents
コンプレッサにアクティブ安定化を施すようにしたガスタービンの制御 Download PDFInfo
- Publication number
- JP5550552B2 JP5550552B2 JP2010518487A JP2010518487A JP5550552B2 JP 5550552 B2 JP5550552 B2 JP 5550552B2 JP 2010518487 A JP2010518487 A JP 2010518487A JP 2010518487 A JP2010518487 A JP 2010518487A JP 5550552 B2 JP5550552 B2 JP 5550552B2
- Authority
- JP
- Japan
- Prior art keywords
- compressor
- control system
- control
- engine
- gas 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.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
- F02C9/16—Control of working fluid flow
- F02C9/18—Control of working fluid flow by bleeding, bypassing or acting on variable working fluid interconnections between turbines or compressors or their stages
-
- 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
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
- F01D11/14—Adjusting or regulating tip-clearance, i.e. distance between rotor-blade tips and stator casing
- F01D11/20—Actively adjusting tip-clearance
- F01D11/24—Actively adjusting tip-clearance by selectively cooling-heating stator or rotor components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
- F04D27/0238—Details or means for fluid reinjection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0246—Surge control by varying geometry within the pumps, e.g. by adjusting vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/16—Sealings between pressure and suction sides
- F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
- F04D29/164—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of an axial flow wheel
-
- 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
- F05D2270/10—Purpose of the control system to cope with, or avoid, compressor flow instabilities
- F05D2270/101—Compressor surge or stall
-
- 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
- F05D2270/10—Purpose of the control system to cope with, or avoid, compressor flow instabilities
- F05D2270/101—Compressor surge or stall
- F05D2270/102—Compressor surge or stall caused by working fluid flow velocity profile distortion
-
- 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
- F05D2270/10—Purpose of the control system to cope with, or avoid, compressor flow instabilities
- F05D2270/101—Compressor surge or stall
- F05D2270/102—Compressor surge or stall caused by working fluid flow velocity profile distortion
- F05D2270/1022—Compressor surge or stall caused by working fluid flow velocity profile distortion due to high angle of attack of aircraft
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Geometry (AREA)
- Fluid Mechanics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Description
−推力レバー操作位置信号の変化量ないしはその変化速度、
−軸回転数の変化量ないしはその変化速度、
−「レーティングパラメータ」の「コマンド信号」及び/又はその変化量、
−燃料流量の変化量及び/又はその変化速度、
−エンジン及び/又はコンプレッサの吸入及び/又は吐出における圧力及び温度、
−コンプレッサ末端圧力に対する燃料流量の比から得られるパラメータ、
−エンジンのタービン温度及び/又は排気ガス温度、
−計測により得られ、または合成により得られ、及び/又は、そこから更に導出することのできる、その他全てのパラメータ。
−遠心力によるロータの寸法増大量を考慮に入れていること、
−ロータとケーシングの熱膨張量の瞬間値を考慮に入れていること、
−まさに発生しようとしている熱膨張を予測するものであること、
−このアルゴリズムは、エンジンの熱履歴を記録したロジックと連係させるものであること、
−経時変化(運転時間、及び/または、サイクル回数、及び/または、ガス温度)を検出し、評価し、予測するアルゴリズムと連係するものであること。
−推力レバー操作位置信号の変化量及び/又はその変化速度、
−軸回転数の変化量及び/又はその変化速度、
−「レーティングパラメータ」の「コマンド信号」及び/又はその変化量、
−燃料流量の変化量及び/又はその変化速度、
−エンジン及び/又はコンプレッサの吸入及び/又は吐出圧力及び温度、
−コンプレッサ末端圧力に対する燃料流量の比から得られるパラメータ、
−エンジンのタービン温度及び/又は排気ガス温度、
−計測または合成により得られ、及び/又は、そこから更に導出することのできる、その他全てのパラメータ。
−航空機の実状態に応じてケーシング調節機構を制御して高圧コンプレッサの間隙寸法を適合化するステップ、
−更に間隙寸法を計測してその実測値を目標値と比較するステップ、
−重大な加速操作ないし減速操作を検出して、ブレード先端気体注入動作を作動状態にするステップ。
Claims (6)
- 航空機用エンジンのガスタービンの制御システムであって、少なくとも1つのコンプレッサに設けられ、必要に応じて作動状態にされる、コンプレッサの安定性を向上させるためのブレード先端気体注入装置(ASC)を備えた制御システムにおいて、
該制御システムは、少なくとも1つのコンプレッサに設けられた、アクティブ間隙制御装置(ACC)を備えており、該ACC装置によって、コンプレッサの径方向間隙寸法を最適動作範囲内に保持できるようにしてあり、更に、該制御システムは、前記ASC装置と前記ACC装置との両方を制御する共通のエンジンコントローラを備えていて、
前記エンジンコントローラは、コンプレッサの安定性の変化を予測する前記ASC装置のための予測手段と、コンプレッサの径方向間隙寸法を予測する前記ACC装置のための予測手段とを備えており、
該制御システムは、ブレード先端気体注入のための気体注入箇所の近傍に、圧縮空気を貯留する貯留手段を備えることで、デッドタイムを排除するようにしてある、
ことを特徴とするガスタービンの制御システム。 - 前記ASC装置のための前記予測手段が、ポンピング限界余裕を予測するための予測モデルを含むことを特徴とする請求項1記載のガスタービンの制御システム。
- 間隙制御のために、機械的、電気的、空圧的、油圧的、及び/または、熱的に調節可能なケーシング構成部品を備えていることを特徴とする請求項1又は2記載のガスタービンの制御システム。
- 間隙計測のためのセンサを備えていることを特徴とする請求項1乃至3の何れか1項記載のガスタービンの制御システム。
- 前記ACC装置のための前記予測手段が、間隙寸法の制御及び計測信号の評価のための間隙モデルを含むことを特徴とする請求項1乃至4の何れか1項記載のガスタービンの制御システム。
- 請求項1乃至5の何れか1項記載の航空機用エンジンのガスタービンの制御システムの、制御方法において、
航空機の実状態に応じてケーシング調節機構を制御して少なくとも1つのコンプレッサの間隙寸法を適合化するステップと、
更に間隙寸法を計測して実測値を目標値と比較するステップと、
必要に応じてブレード先端気体注入動作を作動状態にするステップと、
を含んでいることを特徴とする制御方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007035927A DE102007035927A1 (de) | 2007-07-31 | 2007-07-31 | Regelung für eine Gasturbine mit aktiv stabilisiertem Verdichter |
DE102007035927.8 | 2007-07-31 | ||
PCT/DE2008/001176 WO2009015635A2 (de) | 2007-07-31 | 2008-07-17 | Regelung für eine gasturbine mit aktiv stabilisiertem verdichter |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010534787A JP2010534787A (ja) | 2010-11-11 |
JP5550552B2 true JP5550552B2 (ja) | 2014-07-16 |
Family
ID=40019384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010518487A Expired - Fee Related JP5550552B2 (ja) | 2007-07-31 | 2008-07-17 | コンプレッサにアクティブ安定化を施すようにしたガスタービンの制御 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8550767B2 (ja) |
EP (1) | EP2171216B1 (ja) |
JP (1) | JP5550552B2 (ja) |
CA (1) | CA2695018A1 (ja) |
DE (1) | DE102007035927A1 (ja) |
WO (1) | WO2009015635A2 (ja) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012013530A1 (de) * | 2010-07-29 | 2012-02-02 | Siemens Aktiengesellschaft | Verfahren zum betrieb eines verdichters |
US9458855B2 (en) * | 2010-12-30 | 2016-10-04 | Rolls-Royce North American Technologies Inc. | Compressor tip clearance control and gas turbine engine |
US20120297781A1 (en) * | 2011-05-24 | 2012-11-29 | Maruthi Prasad Manchikanti | Heating system for use in a turbine engine and method of operating same |
DE102011108766A1 (de) | 2011-07-28 | 2013-01-31 | Mtu Aero Engines Gmbh | Verfahren zum Verändern der Drehzahl eines Turbogastriebwerks und Triebwerkscontroller |
US9097133B2 (en) * | 2012-06-04 | 2015-08-04 | United Technologies Corporation | Compressor tip clearance management for a gas turbine engine |
US9228501B2 (en) * | 2012-12-14 | 2016-01-05 | Solar Turbines Incorporated | Bleed valve override schedule on off-load transients |
JP6366259B2 (ja) * | 2013-11-18 | 2018-08-01 | 三菱日立パワーシステムズ株式会社 | 2軸ガスタービンの制御装置及び制御方法 |
US9593589B2 (en) | 2014-02-28 | 2017-03-14 | General Electric Company | System and method for thrust bearing actuation to actively control clearance in a turbo machine |
US10087772B2 (en) | 2015-12-21 | 2018-10-02 | General Electric Company | Method and apparatus for active clearance control for high pressure compressors using fan/booster exhaust air |
US10794281B2 (en) | 2016-02-02 | 2020-10-06 | General Electric Company | Gas turbine engine having instrumented airflow path components |
US11073090B2 (en) | 2016-03-30 | 2021-07-27 | General Electric Company | Valved airflow passage assembly for adjusting airflow distortion in gas turbine engine |
US10753278B2 (en) | 2016-03-30 | 2020-08-25 | General Electric Company | Translating inlet for adjusting airflow distortion in gas turbine engine |
US10458429B2 (en) | 2016-05-26 | 2019-10-29 | Rolls-Royce Corporation | Impeller shroud with slidable coupling for clearance control in a centrifugal compressor |
GB2553806B (en) | 2016-09-15 | 2019-05-29 | Rolls Royce Plc | Turbine tip clearance control method and system |
GB201721389D0 (en) * | 2017-12-20 | 2018-01-31 | Rolls Royce Plc | Methods, computer programs, non-transitory computer readable storage mediums, signals, and apparatus for controlling electrical power supplied to a component |
CN111312058B (zh) * | 2019-11-29 | 2022-02-25 | 中国科学院工程热物理研究所 | 压气机试验件结构 |
US11391288B2 (en) | 2020-09-09 | 2022-07-19 | General Electric Company | System and method for operating a compressor assembly |
CN112302733A (zh) * | 2020-11-05 | 2021-02-02 | 南京航空航天大学 | 一种用于航空涡桨发动机性能增强的主动控制模块 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US390163A (en) | 1888-09-25 | Daniel grant | ||
US3227418A (en) * | 1963-11-04 | 1966-01-04 | Gen Electric | Variable clearance seal |
US3901620A (en) | 1973-10-23 | 1975-08-26 | Howell Instruments | Method and apparatus for compressor surge control |
FR2452600A1 (fr) * | 1979-03-28 | 1980-10-24 | United Technologies Corp | Moteur a turbine a gaz avec un carter de compresseur divise longitudinalement et comportant des collecteurs s'etendant circonferentiellement autour du carter |
US5340271A (en) * | 1990-08-18 | 1994-08-23 | Rolls-Royce Plc | Flow control method and means |
GB9018188D0 (en) * | 1990-08-18 | 1990-10-03 | Rolls Royce Plc | Flow control method and means |
US5263816A (en) * | 1991-09-03 | 1993-11-23 | General Motors Corporation | Turbomachine with active tip clearance control |
JPH06137167A (ja) * | 1992-10-22 | 1994-05-17 | Hitachi Ltd | 軸流流体機械 |
US5344284A (en) * | 1993-03-29 | 1994-09-06 | The United States Of America As Represented By The Secretary Of The Air Force | Adjustable clearance control for rotor blade tips in a gas turbine engine |
US5431533A (en) | 1993-10-15 | 1995-07-11 | United Technologies Corporation | Active vaned passage casing treatment |
US5658125A (en) * | 1995-02-28 | 1997-08-19 | Allison Engine Company, Inc. | Magnetic bearings as actuation for active compressor stability control |
US6626635B1 (en) * | 1998-09-30 | 2003-09-30 | General Electric Company | System for controlling clearance between blade tips and a surrounding casing in rotating machinery |
US6272422B2 (en) * | 1998-12-23 | 2001-08-07 | United Technologies Corporation | Method and apparatus for use in control of clearances in a gas turbine engine |
GB2363864B (en) * | 2000-06-23 | 2004-08-18 | Rolls Royce Plc | A control arrangement |
US6532433B2 (en) * | 2001-04-17 | 2003-03-11 | General Electric Company | Method and apparatus for continuous prediction, monitoring and control of compressor health via detection of precursors to rotating stall and surge |
US6487491B1 (en) * | 2001-11-21 | 2002-11-26 | United Technologies Corporation | System and method of controlling clearance between turbine engine blades and case based on engine components thermal growth model |
JP2003269397A (ja) * | 2002-03-19 | 2003-09-25 | Ishikawajima Harima Heavy Ind Co Ltd | 圧縮機のチップクリアランス制御装置 |
US6692222B2 (en) * | 2002-05-14 | 2004-02-17 | The Board Of Trustees Of The Leland Stanford Junior University | Micro gas turbine engine with active tip clearance control |
US7079957B2 (en) * | 2003-12-30 | 2006-07-18 | General Electric Company | Method and system for active tip clearance control in turbines |
US7455495B2 (en) * | 2005-08-16 | 2008-11-25 | United Technologies Corporation | Systems and methods for monitoring thermal growth and controlling clearances, and maintaining health of turbo machinery applications |
DE102005045255A1 (de) * | 2005-09-22 | 2007-03-29 | Mtu Aero Engines Gmbh | Verbesserter Verdichter in Axialbauart |
-
2007
- 2007-07-31 DE DE102007035927A patent/DE102007035927A1/de not_active Withdrawn
-
2008
- 2008-07-17 WO PCT/DE2008/001176 patent/WO2009015635A2/de active Application Filing
- 2008-07-17 CA CA2695018A patent/CA2695018A1/en not_active Abandoned
- 2008-07-17 JP JP2010518487A patent/JP5550552B2/ja not_active Expired - Fee Related
- 2008-07-17 US US12/671,489 patent/US8550767B2/en not_active Expired - Fee Related
- 2008-07-17 EP EP08784357.9A patent/EP2171216B1/de not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
WO2009015635A3 (de) | 2009-03-26 |
EP2171216B1 (de) | 2013-09-11 |
WO2009015635A2 (de) | 2009-02-05 |
JP2010534787A (ja) | 2010-11-11 |
US8550767B2 (en) | 2013-10-08 |
CA2695018A1 (en) | 2009-02-05 |
DE102007035927A1 (de) | 2009-02-05 |
EP2171216A2 (de) | 2010-04-07 |
US20100196137A1 (en) | 2010-08-05 |
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