Model-based feed forward approach to coordinated air-fuel control on a gas turbine

    公开(公告)号:US09677476B2

    公开(公告)日:2017-06-13

    申请号:US14190181

    申请日:2014-02-26

    Abstract: Presented herein are turbine machines, turbine control systems, methods, and computer-readable storage devices for controlling turbines including a compressor, a combustion system, and a turbine section comprising a turbine operating at an initial turbine output while using initial parameter values for the respective control parameters of the turbine. The techniques involve, for respective selected control parameters, selecting an adjustment of the initial parameter value of the selected control parameter, and predicting a predicted turbine output of the turbine operated using the adjustment of the selected control parameter and the initial parameter values for other control parameters; comparing the predicted turbine outputs for the adjustments of the respective control parameters to select, from the control parameters, a target control parameter having a target adjustment that results in the target turbine output; and operating the turbine with the target adjustment of the target control parameter.

    Coordinated combined cycle power plant response for block loading in grid restoration

    公开(公告)号:US11619145B2

    公开(公告)日:2023-04-04

    申请号:US17313406

    申请日:2021-05-06

    Abstract: A method for block loading an electrical grid with a combined cycle power plant (CCPP) includes operating a gas turbine system of the CCPP in an islanding mode with a steam turbine system of the CCPP off line with turning gear rotating only; loading the steam turbine system accordingly to temperature matching conditions of the steam turbine system, the loading of the steam turbine system includes controlling gas turbine exhaust fed to the steam turbine system and the gas turbine exhaust temperature heats the steam turbine system and to meet temperature matching conditions of the steam turbine system; wherein controlling gas turbine exhaust includes controlling fuel flow and air flow to the gas turbine system; and operating at least one of the gas turbine system and steam turbine system to block load the electrical grid from a load on at least one of gas turbine system and steam turbine system.

    SYSTEMS AND METHODS FOR DETERMINATION OF GAS TURBINE FUEL SPLIT FOR HEAD END TEMPERATURE CONTROL

    公开(公告)号:US20210388775A1

    公开(公告)日:2021-12-16

    申请号:US16900761

    申请日:2020-06-12

    Abstract: A method of controlling an operating temperature of a first combustion zone of a combustor of a rotary machine includes determining a current operating temperature and a target operating temperature of a first combustion zone using a digital simulation. The method further includes determining a derivative of the current operating temperature with respect to a current fuel split using the digital simulation. The fuel split apportions a total flow of fuel to the combustor between the first combustion zone and a second combustion zone. The method also includes calculating a calculated fuel split that results in a calculated operating temperature approaching the target operating temperature. The method further includes channeling a first flow of fuel to the first combustion zone and a second flow of fuel to the second combustion zone.

    MODEL-BASED FEED FORWARD APPROACH TO COORDINATED AIR-FUEL CONTROL ON A GAS TURBINE
    4.
    发明申请
    MODEL-BASED FEED FORWARD APPROACH TO COORDINATED AIR-FUEL CONTROL ON A GAS TURBINE 有权
    基于模型的进料方法对气体涡轮机协调的空气燃料控制

    公开(公告)号:US20150240726A1

    公开(公告)日:2015-08-27

    申请号:US14190181

    申请日:2014-02-26

    Abstract: Presented herein are turbine machines, turbine control systems, methods, and computer-readable storage devices for controlling turbines including a compressor, a combustion system, and a turbine section comprising a turbine operating at an initial turbine output while using initial parameter values for the respective control parameters of the turbine. The techniques involve, for respective selected control parameters, selecting an adjustment of the initial parameter value of the selected control parameter, and predicting a predicted turbine output of the turbine operated using the adjustment of the selected control parameter and the initial parameter values for other control parameters; comparing the predicted turbine outputs for the adjustments of the respective control parameters to select, from the control parameters, a target control parameter having a target adjustment that results in the target turbine output; and operating the turbine with the target adjustment of the target control parameter.

    Abstract translation: 这里提出的是用于控制涡轮机的涡轮机,涡轮机控制系统,方法和计算机可读存储装置,包括压缩机,燃烧系统和涡轮机部分,其包括在初始涡轮机输出处操作的涡轮机,同时使用相应的初始参数值 涡轮机的控制参数。 这些技术涉及对于各个所选择的控制参数,选择所选择的控制参数的初始参数值的调整,并且使用所选择的控制参数的调整和用于其他控制的初始参数值来预测所操作的涡轮机的预测涡轮机输出 参数; 比较预测的涡轮机输出用于各个控制参数的调整,从控制参数中选择具有导致目标涡轮机输出的目标调节的目标控制参数; 并且利用目标控制参数的目标调整来操作涡轮机。

    Non-optical flame detector and method for a combustor of a turbine engine

    公开(公告)号:US11519292B2

    公开(公告)日:2022-12-06

    申请号:US17210754

    申请日:2021-03-24

    Abstract: A method of detecting flame state of a combustor of a turbine engine. The method includes determining at least one of a first derivative and a second derivative of a compressor discharge pressure of a compressor of the turbine engine; determining at least one of a first derivative and a second derivative of a gas turbine exhaust gas temperature of the exhaust gases output by the turbine engine; determining at least one of a first derivative and a second derivative of a gas turbine shaft/rotor speed of the turbine engine; determining at least one of a first derivative and a second derivative of combustor dynamic pressure monitoring; and determining a flame state of a combustor of the turbine engine based on the combustor dynamic pressure monitoring, the determined derivatives of the combustion dynamics, compressor discharge pressure, gas turbine shaft/rotor speed, and gas turbine exhaust gas temperature of the exhaust gases.

    COORDINATED COMBINED CYCLE POWER PLANT RESPONSE FOR BLOCK LOADING IN GRID RESTORATION

    公开(公告)号:US20220356820A1

    公开(公告)日:2022-11-10

    申请号:US17313406

    申请日:2021-05-06

    Abstract: A method for block loading an electrical grid with a combined cycle power plant (CCPP) includes operating a gas turbine system of the CCPP in an islanding mode with a steam turbine system of the CCPP off line with turning gear rotating only; loading the steam turbine system accordingly to temperature matching conditions of the steam turbine system, the loading of the steam turbine system includes controlling gas turbine exhaust fed to the steam turbine system and the gas turbine exhaust temperature heats the steam turbine system and to meet temperature matching conditions of the steam turbine system; wherein controlling gas turbine exhaust includes controlling fuel flow and air flow to the gas turbine system; and operating at least one of the gas turbine system and steam turbine system to block load the electrical grid from a load on at least one of gas turbine system and steam turbine system.

    Methods and systems for detecting an oscillatory event
    8.
    发明授权
    Methods and systems for detecting an oscillatory event 有权
    用于检测振荡事件的方法和系统

    公开(公告)号:US09176002B2

    公开(公告)日:2015-11-03

    申请号:US13633586

    申请日:2012-10-02

    CPC classification number: G01H1/00

    Abstract: Methods and systems for detecting an oscillatory event are provided. According to one embodiment, a system may include a controller configured to provide a command signal to a positioning device and a processor communicatively coupled to the controller. The command signal may include a reference position. The processor may be configured to monitor a feedback signal responsive to the command signal. The feedback signal may include an actual position of the positioning device. The processor may be further configured to determine that within a predetermined period of time the actual position is both above a predetermined upper threshold and below a predetermined lower threshold. Based on the determination, the processor may declare the oscillatory event.

    Abstract translation: 提供了用于检测振荡事件的方法和系统。 根据一个实施例,系统可以包括被配置为向定位设备和通信地耦合到控制器的处理器提供命令信号的控制器。 命令信号可以包括参考位置。 处理器可以被配置为响应于命令信号监视反馈信号。 反馈信号可以包括定位装置的实际位置。 处理器可以进一步被配置为确定在预定时间段内实际位置都在高于预定上限阈值并低于预定下限阈值。 基于该确定,处理器可以声明振荡事件。

    SYSTEM AND METHOD FOR GAS TURBINE OPERATION
    10.
    发明申请
    SYSTEM AND METHOD FOR GAS TURBINE OPERATION 有权
    用于气体运行的系统和方法

    公开(公告)号:US20140156165A1

    公开(公告)日:2014-06-05

    申请号:US13691389

    申请日:2012-11-30

    Abstract: A system includes a controller configured to control one or more parameters of a gas turbine engine based on a feedback and a predicted lifespan of one or more components of the gas turbine engine to substantially maintain at least one of power output or heat rate above a threshold level in response to degradation or fouling of the gas turbine engine.

    Abstract translation: 系统包括控制器,其被配置为基于燃气涡轮发动机的一个或多个部件的反馈和预测寿命来控制燃气涡轮发动机的一个或多个参数,以基本上保持功率输出或热速率中的至少一个高于阈值 以响应于燃气涡轮发动机的劣化或结垢。

Patent Agency Ranking