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公开(公告)号：US09890714B2
公开(公告)日：2018-02-13
申请号：US14610760
申请日：2015-01-30
Applicant: ANSALDO ENERGIA IP UK LIMITED
Inventor： Sumit Soni , Nicolas Roger Demougeot , Peter John Stuttaford
CPC classification number: F02C9/28 , F02C7/228 , F02C9/34 , F05D2260/80 , F05D2270/05 , F05D2270/082 , F05D2270/301 , F05D2270/31 , F23N2041/20 , F23R3/343 , F23R3/346 , F23R2900/00013
Abstract: An auto-tune controller and tuning process implemented thereby for measuring and tuning the combustion dynamics and emissions of a GT engine, relative to predetermined upper limits, are provided. Initially, the tuning process includes monitoring the combustion dynamics of a plurality of combustors and emissions for a plurality of conditions. Upon determination that one or more of the conditions exceeds a predetermined upper limit, a fuel flow split to a fuel circuit on all of the combustors on the engine is adjusted by a predetermined amount. The control system continues to monitor the combustion dynamics and to recursively adjust the fuel flow split by the predetermined amount until the combustion dynamics and/or emissions are operating within a prescribed range of the GT engine. Additionally, a method of automated extended turndown of a GT engine to find a minimum load is provided.
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公开(公告)号：US09803560B2
公开(公告)日：2017-10-31
申请号：US14213337
申请日：2014-03-14
Applicant: ANSALDO ENERGIA IP UK LIMITED
Inventor： Peter John Stuttaford , Sumit Soni , Donald Gauthier , Hany Rizkalla
CPC classification number: F02C9/22 , F02C9/00 , F02C9/48 , F05D2260/964 , G05B15/02
Abstract: A method for tuning a combustor of a gas turbine engine based on one or more monitored operating conditions is provided. One or more operating conditions of the gas turbine engine are monitored. The monitored operating conditions may include, for example, a low frequency tone, a high frequency tone, and a ratio of the low frequency tone to the high frequency tone. It is determined whether the ratio of the low frequency tone to the high frequency tone is within a first predefined normal range. If the ratio of the low frequency tone to the high frequency tone is within the first predefined normal range, a determination is made not to tune the gas turbine engine. But, if the ratio of the low frequency tone to the high frequency tone is not within the first predefined normal range, a determination is made to tune the gas turbine engine.
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公开(公告)号：US09927818B2
公开(公告)日：2018-03-27
申请号：US14213122
申请日：2014-03-14
Applicant: Ansaldo Energia IP UK Limited
Inventor： Hany Rizkalla , Donald Gauthier , Sumit Soni , Peter John Stuttaford
CPC classification number: G05D7/0676 , F02C7/228 , F02C9/28 , F02C9/34 , F05D2270/082 , F05D2270/301 , F05D2270/31 , F23N2041/20 , F23R3/343 , F23R3/346
Abstract: Methods and systems are provided for automatically tuning a combustor of a gas turbine engine during a transient period, such as when a state of the gas turbine engine is changing. Once it has been determined whether the state of the gas turbine engine is changing, it is then determined whether a lean blowout is imminent, which is based conditions being monitored. A stability bias is applied to the system if either the state is changing or if lean blowout is imminent until the lean blowout is no longer determined to be imminent. The stability bias monitors operating conditions of the gas turbine engine and determines when one of the operating conditions has overcome a threshold value. Once a threshold value is overcome, a fuel flow fraction is adjusted by a predefined increment. The application of the stability bias is gradually terminated once it is determined that the lean blowout is no longer imminent.
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