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公开(公告)号：US10436124B2
公开(公告)日：2019-10-08
申请号：US15882514
申请日：2018-01-29
摘要： Methods and systems for processing a signal indicative of at least one operating condition of a gas turbine engine to remove noise associated therewith are provided. The method and systems receive a signal from one or more sensors operably coupled to a gas turbine engine, retrieves one or more known system parameters and a previously determined average signal, and processes the signal using the system parameter and the previously determined average signal to remove noise therefrom. In some of the described methods and systems, the processed signal is then compared to predetermined upper and lower limits, and, if the processed signal exceeds the limits, at least one component of the gas turbine engine, such as a fuel-flow split, is adjusted in an effort to bring the signal back within the limits.
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公开(公告)号：US20180223742A1
公开(公告)日：2018-08-09
申请号：US15882514
申请日：2018-01-29
CPC分类号： F02C9/28 , F02C3/06 , F02C7/042 , F02C7/057 , F02C7/228 , F05D2220/32 , F05D2240/35 , F05D2260/964 , F05D2270/082 , F05D2270/31 , F05D2270/333 , G01M15/14
摘要： Methods and systems for processing a signal indicative of at least one operating condition of a gas turbine engine to remove noise associated therewith are provided. The method and systems receive a signal from one or more sensors operably coupled to a gas turbine engine, retrieves one or more known system parameters and a previously determined average signal, and processes the signal using the system parameter and the previously determined average signal to remove noise therefrom. In some of the described methods and systems, the processed signal is then compared to predetermined upper and lower limits, and, if the processed signal exceeds the limits, at least one component of the gas turbine engine, such as a fuel-flow split, is adjusted in an effort to bring the signal back within the limits.
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公开(公告)号：US20110270502A1
公开(公告)日：2011-11-03
申请号：US13086978
申请日：2011-04-14
IPC分类号： F02C9/26
摘要： A tuning process is provided for monitoring fuel properties of a fuel being consumed by a gas turbine (GT) engine, and for dynamically tuning the GT engine as a function of changes to the monitored fuel properties. Initially, readings are taken from the GT engine during a reference calibration, or commissioning, and utilized to calculate an initial-pressure-drop reference value. The tuning process during commercial operation takes post-calibration readings from the GT engine to calculate a fuel property parameter, which represents a heating value of the fuel. Specifically, the fuel property parameter is calculated by deriving a corrected-pressure-drop dynamic value as a function of pressure and temperature readings of the fuel at a point upstream of a combustor and pressure drops across fuel nozzles that introduce the fuel into the combustor, and solving a ratio of the dynamic value and the reference value.
摘要翻译： 提供了一种调节过程，用于监测由燃气轮机（GT）发动机消耗的燃料的燃料性质，并且用于根据对所监测的燃料性质的变化来动态调节GT发动机。 最初，在参考校准或调试期间从GT发动机获取读数，并用于计算初始压降参考值。 商业运行过程中的调整过程需要GT发动机的后校准读数，以计算燃料特性参数，该参数代表燃料的热值。 具体地说，燃料特性参数通过导出作为燃料在燃烧器上游一点上燃料的压力和温度读数的函数的校正压降动态值来计算，并且将燃料引入燃烧器的燃料喷嘴之间的压力下降， 并求解动态值和参考值的比值。
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公开(公告)号：US20110265487A1
公开(公告)日：2011-11-03
申请号：US13053910
申请日：2011-03-22
IPC分类号： F02C9/26
CPC分类号： F02C7/228 , F02C9/28 , F05D2270/301 , F05D2270/303 , F23N1/002 , F23N2037/02 , F23N2037/18 , F23N2037/28 , F23N2041/20 , F23R3/34 , F23R2900/00013
摘要： Tuning processes implemented by an auto-tune controller are provided for measuring and adjusting the combustion dynamics and the emission composition of a gas turbine (GT) engine via a tuning process. Initially, the tuning process includes monitoring parameters, such as combustion dynamics and emission composition. Upon determining that one or more of the monitored parameters exceed a critical value, these “out-of-tune” parameters are compared to a scanning order table. Upon comparison, the first out-of-tune parameter that is matched within the scanning order table is addressed. The first out-of-tune parameter is then plotted as overlaid slopes on respective graphs, where the graph represents a fuel-flow split. Typically, the slopes are plotted as a particular out-of-tune parameter against a particular fuel-flow split. The slopes for each graph are considered together by taking into account the combined impact on each out-of-tune parameter when a fuel-flow split is selected for adjustment.
摘要翻译： 提供由自动调谐控制器实现的调谐过程，用于通过调谐过程测量和调整燃气轮机（GT）发动机的燃烧动力学和发射组成。 最初，调谐过程包括监测参数，如燃烧动态和排放组成。 在确定一个或多个所监视的参数超过临界值时，将这些“失调”参数与扫描顺序表进行比较。 相比之下，寻址在扫描顺序表中匹配的第一个失调参数。 然后将第一个失调参数作为叠加的斜率绘制在各个图上，其中图表示燃料流分流。 通常，斜率被绘制为针对特定燃料流分流的特定失调参数。 当选择燃料流分流进行调整时，通过考虑对每个失调参数的组合影响，每个曲线图的斜率被一起考虑。
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公开(公告)号：US08997499B2
公开(公告)日：2015-04-07
申请号：US12686933
申请日：2010-01-13
申请人： Nicolas Demougeot , Jon Glende , Peter Stuttaford
发明人： Nicolas Demougeot , Jon Glende , Peter Stuttaford
摘要： A system and way for controlling a gas turbine engine in the event of a partial or full load rejection from a generator is disclosed. Upon detection of a partial or full load rejection, the fuel flow of the combustor is directed to a secondary circuit of a secondary fuel nozzle to maintain a flame in a downstream chamber of the combustor. By maintaining the flame in the downstream chamber while the engine speed is controlled, the recovery process to a load condition avoids use of spark ignition system and flame detectors in the upstream chamber.
摘要翻译： 公开了在发电机发生部分或全部负载的情况下控制燃气涡轮发动机的系统和方法。 在检测到部分或全部负载排斥时，燃烧器的燃料流动被引导到次级燃料喷嘴的次级回路，以在燃烧器的下游腔室中保持火焰。 通过在控制发动机转速的同时维持下游室中的火焰，恢复到负载状态的过程避免了在上游室中使用火花点火系统和火焰探测器。
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6.发明授权Selecting and applying to fuel-flow splits bias values to correct for elevated inlet air humidity 有权选择和应用燃料流分流偏置值以校正进气空气湿度的升高公开(公告)号：US08566001B2
公开(公告)日：2013-10-22
申请号：US13087048
申请日：2011-04-14
CPC分类号： F02C7/1435 , F02C7/22 , F02C7/228 , F02C9/28 , F05D2270/083 , F05D2270/16 , F05D2270/708
摘要： Methods for controlling a gas turbine engine are provided, where a compressor inlet temperature, ambient temperature, and relative humidity are measured. Utilizing these measurements, it is first determined whether an evaporation cooler is actively importing water content into inlet air entering the compressor. This determination is based on whether the inlet air is substantially cooler than the ambient temperature. If so, an EC correction factor is added to an inlet air temperature value (CTIM) and set as an air temperature parameter (INLETIM). Second, it is determined whether the relative humidity is greater than a predefined threshold. If so, a relative humidity (RH) correction factor is added to CTIM and set as the INLETIM. Next, the INLETIM and TTRF are located in a look-up table, and a bias value corresponding to these inputs is identified. The fuel-flow for a fuel circuit is adjusted according to the identified bias value.
摘要翻译： 提供了用于控制燃气涡轮发动机的方法，其中测量压缩机入口温度，环境温度和相对湿度。 利用这些测量，首先确定蒸发冷却器是否积极地将水分输入到进入压缩机的入口空气中。 该确定基于入口空气是否比环境温度基本上更冷。 如果是这样，将EC校正因子加到入口空气温度值（CTIM），并设置为空气温度参数（INLETIM）。 其次，确定相对湿度是否大于预定阈值。 如果是这样，将相对湿度（RH）校正因子添加到CTIM并设置为INLETIM。 接下来，INLETIM和TTRF位于查找表中，并且识别与这些输入相对应的偏置值。 根据所识别的偏置值来调节燃料回路的燃料流量。
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公开(公告)号：US09097185B2
公开(公告)日：2015-08-04
申请号：US12786189
申请日：2010-05-24
CPC分类号： F02C7/228 , F02C9/28 , F02C9/32 , F02C9/34 , F05D2270/082 , F05D2270/301 , F05D2270/31 , F23N2041/20 , F23R3/343 , F23R3/346 , F23R2900/00013
摘要： 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.
摘要翻译： 提供了一种自动调谐控制器和调谐过程，用于相对于预定的上限来测量和调整GT发动机的燃烧动态和排放。 最初，调整过程包括监测多个燃烧器的燃烧动力学和多个条件下的排放。 在确定一个或多个条件超过预定上限时，分配到发动机上的所有燃烧器上的燃料回路的燃料流量被调节预定量。 控制系统继续监测燃烧动力学，并且将燃料流量分开递归地调整预定量，直到燃烧动力学和/或排放物在GT发动机的规定范围内运行。
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公开(公告)号：US08417433B2
公开(公告)日：2013-04-09
申请号：US13053910
申请日：2011-03-22
CPC分类号： F02C7/228 , F02C9/28 , F05D2270/301 , F05D2270/303 , F23N1/002 , F23N2037/02 , F23N2037/18 , F23N2037/28 , F23N2041/20 , F23R3/34 , F23R2900/00013
摘要： Tuning processes implemented by an auto-tune controller are provided for measuring and adjusting the combustion dynamics and the emission composition of a gas turbine (GT) engine via a tuning process. Initially, the tuning process includes monitoring parameters, such as combustion dynamics and emission composition. Upon determining that one or more of the monitored parameters exceed a critical value, these “out-of-tune” parameters are compared to a scanning order table. Upon comparison, the first out-of-tune parameter that is matched within the scanning order table is addressed. The first out-of-tune parameter is then plotted as overlaid slopes on respective graphs, where the graph represents a fuel-flow split. Typically, the slopes are plotted as a particular out-of-tune parameter against a particular fuel-flow split. The slopes for each graph are considered together by taking into account the combined impact on each out-of-tune parameter when a fuel-flow split is selected for adjustment.
摘要翻译： 提供由自动调谐控制器实现的调谐过程，用于通过调谐过程测量和调整燃气轮机（GT）发动机的燃烧动力学和发射组成。 最初，调谐过程包括监测参数，如燃烧动态和排放组成。 在确定一个或多个所监视的参数超过临界值时，将这些失调参数与扫描顺序表进行比较。 相比之下，寻址在扫描顺序表中匹配的第一个失调参数。 然后将第一个失调参数作为叠加的斜率绘制在各个图上，其中图表示燃料流分流。 通常，斜率被绘制为针对特定燃料流分流的特定失调参数。 当选择燃料流分流进行调整时，通过考虑对每个失调参数的组合影响，每个曲线图的斜率被一起考虑。
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9.发明申请SELECTING AND APPLYING TO FUEL-FLOW SPLITS BIAS VALUES TO CORRECT FOR ELEVATED INLET AIR HUMIDITY 有权选择和应用于燃油流量偏差值以更正高压入口空气湿度公开(公告)号：US20110270503A1
公开(公告)日：2011-11-03
申请号：US13087048
申请日：2011-04-14
IPC分类号： F02C9/00
CPC分类号： F02C7/1435 , F02C7/22 , F02C7/228 , F02C9/28 , F05D2270/083 , F05D2270/16 , F05D2270/708
摘要： Methods for controlling a gas turbine engine are provided, where a compressor inlet temperature, ambient temperature, and relative humidity are measured. Utilizing these measurements, it is first determined whether an evaporation cooler is actively importing water content into inlet air entering the compressor. This determination is based on whether the inlet air is substantially cooler than the ambient temperature. If so, an EC correction factor is added to an inlet air temperature value (CTIM) and set as an air temperature parameter (INLETIM). Second, it is determined whether the relative humidity is greater than a predefined threshold. If so, a relative humidity (RH) correction factor is added to CTIM and set as the INLETIM. Next, the INLETIM and TTRF are located in a look-up table, and a bias value corresponding to these inputs is identified. The fuel-flow for a fuel circuit is adjusted according to the identified bias value.
摘要翻译： 提供了用于控制燃气涡轮发动机的方法，其中测量压缩机入口温度，环境温度和相对湿度。 利用这些测量，首先确定蒸发冷却器是否积极地将水分输入到进入压缩机的入口空气中。 该确定基于入口空气是否比环境温度基本上更冷。 如果是这样，将EC校正因子加到入口空气温度值（CTIM），并设置为空气温度参数（INLETIM）。 其次，确定相对湿度是否大于预定阈值。 如果是这样，将相对湿度（RH）校正因子添加到CTIM并设置为INLETIM。 接下来，INLETIM和TTRF位于查找表中，并且识别与这些输入相对应的偏置值。 根据所识别的偏置值来调节燃料回路的燃料流量。
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公开(公告)号：US20170145851A1
公开(公告)日：2017-05-25
申请号：US14947785
申请日：2015-11-20
CPC分类号： F01D21/003 , F01D21/14 , F02C9/00 , F05D2260/80 , F05D2270/80 , G01L27/007 , G01M15/14
摘要： Methods and systems for determining that a sensor, such as a pressure sensor, that provides feedback on one or more conditions of a gas turbine is deficient are provided. The amplitude of measurements from the sensor may be monitored in different frequency ranges in order to detect certain abnormal conditions of the gas turbine that require attention by the control system in one frequency range, and also, concurrently and/or separately, detect a sensor deficiency in another frequency range prior to actual failure of the sensor, at which time the failure may otherwise be noticeable in the first frequency range. This permits better detection of deficient sensors during operation of the gas turbine.
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