CA2438353A1 - Method of diagnosing gas turbine condition and system for diagnosing the same - Google Patents

Method of diagnosing gas turbine condition and system for diagnosing the same Download PDF

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Publication number
CA2438353A1
CA2438353A1 CA002438353A CA2438353A CA2438353A1 CA 2438353 A1 CA2438353 A1 CA 2438353A1 CA 002438353 A CA002438353 A CA 002438353A CA 2438353 A CA2438353 A CA 2438353A CA 2438353 A1 CA2438353 A1 CA 2438353A1
Authority
CA
Canada
Prior art keywords
gas turbine
operating time
server
equivalent operating
damage
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
CA002438353A
Other languages
French (fr)
Other versions
CA2438353C (en
Inventor
Jinichiro Gotoh
Yasushi Hayasaka
Shigeo Sakurai
Hiraku Ikeda
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.)
Hitachi Ltd
Original Assignee
Hitachi, Ltd.
Jinichiro Gotoh
Yasushi Hayasaka
Shigeo Sakurai
Hiraku Ikeda
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 Hitachi, Ltd., Jinichiro Gotoh, Yasushi Hayasaka, Shigeo Sakurai, Hiraku Ikeda filed Critical Hitachi, Ltd.
Publication of CA2438353A1 publication Critical patent/CA2438353A1/en
Application granted granted Critical
Publication of CA2438353C publication Critical patent/CA2438353C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00Testing or monitoring of control systems or parts thereof
    • G05B23/02Electric testing or monitoring
    • G05B23/0205Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0218Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
    • G05B23/0224Process history based detection method, e.g. whereby history implies the availability of large amounts of data
    • G05B23/0227Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions
    • G05B23/0229Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions knowledge based, e.g. expert systems; genetic algorithms
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C9/00Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00Testing or monitoring of control systems or parts thereof
    • G05B23/02Electric testing or monitoring
    • G05B23/0205Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0259Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
    • G05B23/0283Predictive maintenance, e.g. involving the monitoring of a system and, based on the monitoring results, taking decisions on the maintenance schedule of the monitored system; Estimating remaining useful life [RUL]
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00Function
    • F05D2260/80Diagnostics
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2270/00Control
    • F05D2270/01Purpose of the control system
    • F05D2270/11Purpose of the control system to prolong engine life
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2270/00Control
    • F05D2270/30Control parameters, e.g. input parameters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2270/00Control
    • F05D2270/40Type of control system
    • F05D2270/44Type of control system active, predictive, or anticipative

Abstract

An operation monitoring unit 11 for acquiring process data from sensors 10 installed to a gas turbine and operation information of the gas turbine; communication units 12, 14 for transmitting each of said two kinds of data on the gas turbine acquired in the operation monitoring unit 11; an analysis server 16 which calculates values of equivalent operating time using each of the two kinds of data obtained through the communication units 12, 14, the value of equivalent operating time evaluating a degree of damage of a diagnosed position for each of a plurality of degradation -and-- damage modes, and calculates a value of whole equivalent operating time by adding the values of equivalent operating time for the individual degradation-and-damage modes; and a facility management unit 15 client-server systemized using the analysis server 16 and a WWW browser 20 or WWW server 19 are provided. By acquiring the above -described two kinds of data relating to the gas turbine during operating the gas turbine into the analysis server 16 through the communication units 12, 14, a highly accurate analysis result of damage condition can be speedy obtained from values of equivalent operating time for a plurality of degradation -and-damage modes.
Further, it is also possible to provide convenienc e that a person in a remote site can speedy and easily view the analysis results using the WWW
browser 20 through the client server system.
CA002438353A 2001-06-18 2001-06-18 Method of diagnosing gas turbine condition and system for diagnosing the same Expired - Fee Related CA2438353C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2001/005176 WO2002103177A1 (en) 2001-06-18 2001-06-18 Method and system for diagnosing state of gas turbine

Publications (2)

Publication Number Publication Date
CA2438353A1 true CA2438353A1 (en) 2002-12-27
CA2438353C CA2438353C (en) 2009-08-25

Family

ID=11737449

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002438353A Expired - Fee Related CA2438353C (en) 2001-06-18 2001-06-18 Method of diagnosing gas turbine condition and system for diagnosing the same

Country Status (5)

Country Link
US (1) US7065471B2 (en)
JP (1) JPWO2002103177A1 (en)
CN (1) CN1287075C (en)
CA (1) CA2438353C (en)
WO (1) WO2002103177A1 (en)

Families Citing this family (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7050943B2 (en) * 2001-11-30 2006-05-23 General Electric Company System and method for processing operation data obtained from turbine operations
EP1345101A1 (en) * 2002-03-08 2003-09-17 Siemens Aktiengesellschaft Diagnostic system for at least one technical installation
NO320915B1 (en) * 2002-07-30 2006-02-13 Dynatrend As Method and apparatus for determining the operating state of a turbine blade and using the collected state information in a lifetime calculation
EP1394526B1 (en) * 2002-08-30 2007-06-06 Siemens Aktiengesellschaft Method for the evaluation of the operating conditions of an engine or installation
US7333918B2 (en) * 2002-09-05 2008-02-19 Strategic Power Systems, Inc. System and method for calculating part life
US20040082069A1 (en) * 2002-10-25 2004-04-29 Liang Jiang Systems and methods for estimating exposure temperatures and remaining operational life of high temperature components
US7844385B2 (en) * 2004-01-28 2010-11-30 United Technologies Corporation Microserver engine control card
US20050171704A1 (en) * 2004-01-29 2005-08-04 Lewis Bradley M. Method for the automated quantification of power production, resource utilization and wear of turbines
JP4354358B2 (en) * 2004-07-15 2009-10-28 三菱重工業株式会社 Life diagnosis method for high temperature components in gas turbines
DE602005018813D1 (en) * 2004-10-28 2010-02-25 Ronald S Walker MAINTENANCE PROCESS FOR TURBINES
EP1653050A1 (en) * 2004-10-29 2006-05-03 Siemens Aktiengesellschaft Method of determining a characteristic value reflecting the state of fatigue of a component
US7243042B2 (en) * 2004-11-30 2007-07-10 Siemens Power Generation, Inc. Engine component life monitoring system and method for determining remaining useful component life
US7222048B2 (en) * 2005-04-21 2007-05-22 General Electric Company Methods and systems for diagnosing machinery
CN100470017C (en) * 2005-06-21 2009-03-18 上海电力学院 Method for determining running state of gas turbine
NO324581B1 (en) * 2006-01-26 2007-11-26 Dynatrend As Method and apparatus for determining when rotating stall is present in a compressor turbine blade II
JP4513771B2 (en) * 2006-02-28 2010-07-28 株式会社日立製作所 Performance monitoring method and system for single-shaft combined cycle plant
EP1835149B1 (en) * 2006-03-17 2019-03-13 Siemens Aktiengesellschaft Device and method for operational monitoring of a gas turbine
US20080007830A1 (en) * 2006-07-06 2008-01-10 Nicholas Francis Borrelli Glass photonic crystal band-gap devices with polarizing properties
US7509862B2 (en) * 2007-01-24 2009-03-31 Massachusetts Institute Of Technology System and method for providing vibration detection in turbomachinery
US7715991B2 (en) * 2007-05-17 2010-05-11 General Electric Company Systems and methods for monitoring energy system components
US20090125206A1 (en) * 2007-11-08 2009-05-14 General Electric Company Automatic detection and notification of turbine internal component degradation
US7991580B2 (en) * 2008-04-16 2011-08-02 Honeywell International Inc. Benchmarking diagnostic algorithms
JP5191297B2 (en) * 2008-07-18 2013-05-08 中国電力株式会社 Remaining life measurement system
US20100018316A1 (en) * 2008-07-24 2010-01-28 United Technologies Corporation NSMS flight laser detector cooling system
US7984656B2 (en) * 2008-07-24 2011-07-26 United Technologies Corporation NSMS flight laser detector system
DE102008049170C5 (en) * 2008-09-26 2020-04-09 MTU Aero Engines AG Device and method for monitoring the service life
US9354618B2 (en) 2009-05-08 2016-05-31 Gas Turbine Efficiency Sweden Ab Automated tuning of multiple fuel gas turbine combustion systems
US8437941B2 (en) 2009-05-08 2013-05-07 Gas Turbine Efficiency Sweden Ab Automated tuning of gas turbine combustion systems
US9671797B2 (en) 2009-05-08 2017-06-06 Gas Turbine Efficiency Sweden Ab Optimization of gas turbine combustion systems low load performance on simple cycle and heat recovery steam generator applications
US9267443B2 (en) 2009-05-08 2016-02-23 Gas Turbine Efficiency Sweden Ab Automated tuning of gas turbine combustion systems
US8818684B2 (en) 2010-04-15 2014-08-26 General Electric Company Systems, methods, and apparatus for detecting failure in gas turbine hardware
US8135568B2 (en) * 2010-06-25 2012-03-13 General Electric Company Turbomachine airfoil life management system and method
US8812164B2 (en) * 2010-10-12 2014-08-19 Engineered Electric Company Portable cogeneration system incorporating renewable energy sources
US8712739B2 (en) 2010-11-19 2014-04-29 General Electric Company System and method for hybrid risk modeling of turbomachinery
CN102156051B (en) * 2011-01-25 2012-09-12 唐德尧 Framework crack monitoring method and monitoring devices thereof
US10466138B2 (en) 2011-05-20 2019-11-05 Andy Poon Determining remaining useful life of rotating machinery including drive trains, gearboxes, and generators
JP5787838B2 (en) * 2011-07-27 2015-09-30 アルストム テクノロジー リミテッドALSTOM Technology Ltd Gas turbine power plant with exhaust gas recirculation and method of operating the same
ITCO20110032A1 (en) * 2011-07-28 2013-01-29 Nuovo Pignone Spa DEVICE AND METHOD OF OPTIMIZATION AND DETERMINATION OF THE LIFE OF A GAS TURBINE
ITCO20120008A1 (en) 2012-03-01 2013-09-02 Nuovo Pignone Srl METHOD AND SYSTEM FOR MONITORING THE CONDITION OF A GROUP OF PLANTS
US20140150438A1 (en) * 2012-11-30 2014-06-05 General Electric Company System and method for operating a gas turbine in a turndown mode
US9019124B2 (en) 2012-12-20 2015-04-28 Solar Turbines Incorporated System and method for monitoring and alerting on equipment errors
US9644534B2 (en) * 2013-01-16 2017-05-09 General Electric Company Systems and methods for implementing engine cycle count
JP6180896B2 (en) * 2013-11-15 2017-08-16 三菱日立パワーシステムズ株式会社 Power plant start control device and start control method
US9706152B2 (en) * 2013-11-20 2017-07-11 General Electric Company Remote transmission, manipulation, and display of infrared camera data
US9581086B2 (en) 2013-12-20 2017-02-28 General Electric Company Turbine operational flexibility
US20160011921A1 (en) * 2014-07-14 2016-01-14 General Electric Company Cyber secured airgap remote monitoring and diagnostics infrastructure
EP3064744B1 (en) 2015-03-04 2017-11-22 MTU Aero Engines GmbH Diagnosis of gas turbine aircraft engines
EP3109418A1 (en) 2015-06-24 2016-12-28 Siemens Aktiengesellschaft Method for cooling a steam turbine
US10107716B2 (en) * 2015-08-17 2018-10-23 General Electric Company Systems and methods for testing a gas turbine
JP5992087B1 (en) 2015-12-28 2016-09-14 ファナック株式会社 Preventive maintenance management system for creating machine maintenance plans
CN106681293A (en) * 2016-03-04 2017-05-17 浙江大学 Condition-based maintenance decision making system for gas turbines
US20180058251A1 (en) * 2016-08-31 2018-03-01 General Electric Technology Gmbh Flexible Service Interval Counter Module For A Valve And Actuator Monitoring System
US10871081B2 (en) * 2016-08-31 2020-12-22 General Electric Technology Gmbh Creep damage indicator module for a valve and actuator monitoring system
US10544700B2 (en) 2016-08-31 2020-01-28 General Electric Technology Gmbh Advanced startup counter module for a valve and actuator monitoring system
US10233846B2 (en) * 2016-09-20 2019-03-19 General Electric Company Smart liquid fuel system with ability to self-diagnostics
US10641185B2 (en) * 2016-12-14 2020-05-05 General Electric Company System and method for monitoring hot gas path hardware life
US10466677B2 (en) * 2016-12-15 2019-11-05 Solar Turbines Incorporated Assessment of industrial machines
JP7179444B2 (en) * 2017-03-29 2022-11-29 三菱重工業株式会社 Sign detection system and sign detection method
JP6595544B2 (en) 2017-09-01 2019-10-23 ファナック株式会社 Bearing diagnostic apparatus and bearing diagnostic method
EP3567223B1 (en) * 2018-05-08 2020-10-07 Siemens Aktiengesellschaft Sensor-based calculation of service intervals for gas turbines
US10865643B2 (en) * 2018-10-15 2020-12-15 General Electric Technology Gmbh Method and system for a component lifetime counter
CN109784510A (en) * 2019-01-21 2019-05-21 上海船舶研究设计院(中国船舶工业集团公司第六0四研究院) Ship equipment health maintenance method and system
CN110702948B (en) * 2019-10-25 2021-07-06 中国科学院工程热物理研究所 Method and device for processing signal fault of double-rotating-speed sensor of gas turbine
US11639670B2 (en) * 2019-11-14 2023-05-02 General Electric Company Core rub diagnostics in engine fleet
CN111855221A (en) * 2020-07-28 2020-10-30 青岛中科国晟动力科技有限公司 Combustion state monitoring method and system for gas turbine
CN112067310A (en) * 2020-09-11 2020-12-11 阴悦 Health state monitoring system applying non-invasive high-frequency ultrasonic stress wave gas turbine
CN113645522A (en) * 2021-08-11 2021-11-12 深圳市几米物联有限公司 Method, device, equipment and medium for monitoring running state based on wireless network
CN114135397B (en) * 2021-11-05 2023-04-25 广州珠江天然气发电有限公司 Diagnosis optimization method, device and system for gas-steam combined cycle performance
US11725534B2 (en) * 2021-12-01 2023-08-15 Shanghai Power Equipment Research Institute Co., Ltd Method of multi-objective and multi-dimensional online joint monitoring for nuclear turbine
US20230315937A1 (en) * 2022-04-05 2023-10-05 Raytheon Technologies Corporation Partial repair systems and methods for integrally bladed rotors
US11860060B2 (en) 2022-04-05 2024-01-02 Rtx Corporation Integrally bladed rotor analysis and repair systems and methods
FR3138465A1 (en) * 2022-07-29 2024-02-02 Safran Helicopter Engines MONITORING AN AIRCRAFT PROPULSIVE SYSTEM

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2666974B2 (en) * 1988-09-02 1997-10-22 株式会社東芝 Gas turbine life monitoring device
JPH02294525A (en) 1989-05-08 1990-12-05 Hitachi Ltd Service line monitoring system for gas turbine
JP3186866B2 (en) * 1992-11-20 2001-07-11 株式会社東芝 Method and apparatus for predicting deterioration / damage of structural member
JPH0765081A (en) 1993-08-30 1995-03-10 Toshiba Corp Parts managing device
US5447059A (en) * 1993-12-27 1995-09-05 Solar Turbines Incorporated Apparatus and method for determining gas turbine engine life
JP3392526B2 (en) 1994-07-29 2003-03-31 株式会社東芝 Equipment maintenance management support equipment
JP3414582B2 (en) * 1996-05-13 2003-06-09 株式会社東芝 High temperature equipment life monitoring device
JPH10196403A (en) 1997-01-10 1998-07-28 Toshiba Corp Gas turbine parts control device, plant equipment control device and medium which record plant equipment control program
JPH10293049A (en) 1997-04-16 1998-11-04 Toshiba Corp Maintenance control method and device for gas turbine
JPH113113A (en) * 1997-06-10 1999-01-06 Ishikawajima Harima Heavy Ind Co Ltd Diagnostic method for deterioration of equipment and device therefor
US6260004B1 (en) * 1997-12-31 2001-07-10 Innovation Management Group, Inc. Method and apparatus for diagnosing a pump system
US7206646B2 (en) * 1999-02-22 2007-04-17 Fisher-Rosemount Systems, Inc. Method and apparatus for performing a function in a plant using process performance monitoring with process equipment monitoring and control
JP2001032724A (en) * 1999-07-19 2001-02-06 Toshiba Corp On-line life diagnostic system
KR100430211B1 (en) * 1999-09-27 2004-05-03 가부시키가이샤 히타치세이사쿠쇼 Service Life Management System for High-Temperature Part of Gas Turbine
JP2001125933A (en) * 1999-10-25 2001-05-11 Hitachi Ltd Device for aiding reliability design of equipment
US6324659B1 (en) * 1999-10-28 2001-11-27 General Electric Company Method and system for identifying critical faults in machines
US6405108B1 (en) * 1999-10-28 2002-06-11 General Electric Company Process and system for developing predictive diagnostics algorithms in a machine
US6505143B1 (en) * 2000-01-20 2003-01-07 General Electric Company Machine protection system for rotating equipment and method
AU8146901A (en) * 2000-03-17 2001-09-24 Siemens Aktiengesellschaft Plant maintenance technology architecture
AU752024B2 (en) * 2000-04-14 2002-09-05 Kabushiki Kaisha Toshiba Method and equipment for assessing the life of members put under high in-service temperature environment for long period
JP3799217B2 (en) * 2000-06-22 2006-07-19 株式会社日立製作所 Power generation facility operation management system and maintenance management service method
US7275025B2 (en) * 2000-12-27 2007-09-25 General Electric Company Method and system for analyzing performance of a turbine
US6853930B2 (en) * 2001-02-27 2005-02-08 Hitachi, Ltd. System for aiding the preparation of operation and maintenance plans for a power generation installation
WO2002071171A2 (en) * 2001-03-01 2002-09-12 Fisher-Rosemount Systems, Inc. Automatic work order/parts order generation and tracking
US7107491B2 (en) * 2001-05-16 2006-09-12 General Electric Company System, method and computer product for performing automated predictive reliability
US6907416B2 (en) * 2001-06-04 2005-06-14 Honeywell International Inc. Adaptive knowledge management system for vehicle trend monitoring, health management and preventive maintenance
US6871160B2 (en) * 2001-09-08 2005-03-22 Scientific Monitoring Inc. Intelligent condition-based engine/equipment management system
US7050943B2 (en) * 2001-11-30 2006-05-23 General Electric Company System and method for processing operation data obtained from turbine operations

Also Published As

Publication number Publication date
US7065471B2 (en) 2006-06-20
CA2438353C (en) 2009-08-25
CN1287075C (en) 2006-11-29
JPWO2002103177A1 (en) 2004-09-30
CN1553989A (en) 2004-12-08
US20040148129A1 (en) 2004-07-29
WO2002103177A1 (en) 2002-12-27

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