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公开(公告)号：US08984892B2
公开(公告)日：2015-03-24
申请号：US13283045
申请日：2011-10-27
申请人： Tailai Hu , Kelvin Rafael Estrada , Joel Donnell Holt , Diego Fernando Rancruel , Leslie Yung-Min Tong
发明人： Tailai Hu , Kelvin Rafael Estrada , Joel Donnell Holt , Diego Fernando Rancruel , Leslie Yung-Min Tong
CPC分类号： F01K13/02 , F01D21/06 , F01K23/108 , F02C6/18 , Y02E20/16
摘要： A combined cycle power plant includes a gas turbomachine, a steam turbomachine operatively coupled to the gas turbomachine, and a heat recovery steam generator operatively coupled to the gas turbomachine and the steam turbomachine. The heat recovery steam generator includes a high pressure reheat section provided with at least one high pressure superheater and at least one reheater. The combined cycle power plant further includes a controller operatively connected to the gas turbomachine, the steam turbomachine and the heat recovery steam generator. The controller is selectively activated to initiate a flow of steam through the heat recovery steam generator following shutdown of the gas turbomachine to lower a temperature of at least one of the high pressure superheater and the at least one reheater and reduce development of condensate quench effects during HRSG purge of a combined cycle power plant shutdown.
摘要翻译： 联合循环发电厂包括气体涡轮机，可操作地耦合到气体涡轮机的蒸汽涡轮机，以及可操作地耦合到气体涡轮机和蒸汽涡轮机的热回收蒸汽发生器。 热回收蒸汽发生器包括设置有至少一个高压过热器和至少一个再热器的高压再热部分。 联合循环发电厂还包括可操作地连接到气体涡轮机，蒸汽涡轮机和热回收蒸汽发生器的控制器。 选择性地激活控制器以在关闭气体涡轮机之后启动通过热回收蒸汽发生器的蒸汽流，以降低至少一个高压过热器和至少一个再热器的温度，并减少冷凝器骤冷效应的发展 联合循环发电厂的HRSG清除关闭。
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公开(公告)号：US20130047615A1
公开(公告)日：2013-02-28
申请号：US13214915
申请日：2011-08-22
IPC分类号： F01K13/02
CPC分类号： F22B1/1815 , F01K7/00 , F01K23/101 , F22B35/007 , F22B35/18 , Y02E20/16
摘要： A system configured to decrease the emissions of a power plant system during transient state operation is disclosed. In one embodiment, a system includes: at least one computing device adapted to adjust a temperature of an operational steam in a power generation system by performing actions comprising: obtaining operational data about components of a steam turbine in the power generation system, the operational data including at least one of: a temperature of the components and a set of current ambient conditions at the power generation system; determining an allowable operational steam temperature range for the steam turbine based upon the operational data; generating emissions predictions for a set of temperatures within the allowable steam temperature range; and adjusting the temperature of the operational steam based upon the emissions predictions.
摘要翻译： 公开了一种被配置为在过渡状态操作期间减少发电厂系统的排放的系统。 在一个实施例中，系统包括：至少一个计算装置，适于通过执行动作来调节发电系统中的运行蒸汽的温度，所述动作包括：获得关于发电系统中的汽轮机的组件的运行数据，运行数据 包括以下中的至少一个：所述部件的温度和所述发电系统处的一组当前的环境条件; 基于所述操作数据确定所述蒸汽轮机的允许操作蒸汽温度范围; 在允许的蒸汽温度范围内产生一组温度的排放预测; 并根据排放预测调整运行蒸汽的温度。
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公开(公告)号：US08381506B2
公开(公告)日：2013-02-26
申请号：US12401512
申请日：2009-03-10
摘要： A method includes blending a first fuel with a second fuel in a ratio to produce a third mixed fuel. The first fuel has a first heating value, the second fuel has a second heating value, and the third mixed fuel has a third heating value. In addition, the first heating value is different than the second heating value. The method also includes feedforward controlling the third heating value of the third mixed fuel via prediction and correction of a fuel flow rate of the first and/or second fuels to adjust the ratio of the first and second fuels based at least in part on a comparison between a measurement and a target for the third heating value.
摘要翻译： 一种方法包括以一定比例混合第一燃料和第二燃料以产生第三混合燃料。 第一燃料具有第一加热值，第二燃料具有第二加热值，第三混合燃料具有第三加热值。 此外，第一加热值不同于第二加热值。 该方法还包括通过预测和校正第一和/或第二燃料的燃料流量来控制第三混合燃料的第三热值的前馈，以至少部分地基于比较来调节第一和第二燃料的比率 在第三加热值的测量和目标之间。
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公开(公告)号：US20120036828A1
公开(公告)日：2012-02-16
申请号：US13283045
申请日：2011-10-27
申请人： Tailai Hu , Kelvin Rafael Estrada , Joel Donnell Holt , Diego Fernando Rancruel , Leslie Yung-Min Tong
发明人： Tailai Hu , Kelvin Rafael Estrada , Joel Donnell Holt , Diego Fernando Rancruel , Leslie Yung-Min Tong
CPC分类号： F01K13/02 , F01D21/06 , F01K23/108 , F02C6/18 , Y02E20/16
摘要： A combined cycle power plant includes a gas turbomachine, a steam turbomachine operatively coupled to the gas turbomachine, and a heat recovery steam generator operatively coupled to the gas turbomachine and the steam turbomachine. The heat recovery steam generator includes a high pressure reheat section provided with at least one high pressure superheater and at least one reheater. The combined cycle power plant further includes a controller operatively connected to the gas turbomachine, the steam turbomachine and the heat recovery steam generator. The controller is selectively activated to initiate a flow of steam through the heat recovery steam generator following shutdown of the gas turbomachine to lower a temperature of at least one of the high pressure superheater and the at least one reheater and reduce development of condensate quench effects during HRSG purge of a combined cycle power plant shutdown.
摘要翻译： 联合循环发电厂包括气体涡轮机，可操作地耦合到气体涡轮机的蒸汽涡轮机，以及可操作地耦合到气体涡轮机和蒸汽涡轮机的热回收蒸汽发生器。 热回收蒸汽发生器包括设置有至少一个高压过热器和至少一个再热器的高压再热部分。 联合循环发电厂还包括可操作地连接到气体涡轮机，蒸汽涡轮机和热回收蒸汽发生器的控制器。 选择性地激活控制器以在关闭气体涡轮机之后启动通过热回收蒸汽发生器的蒸汽流，以降低至少一个高压过热器和至少一个再热器的温度，并减少冷凝器骤冷效应的发展 联合循环发电厂的HRSG清除关闭。
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公开(公告)号：US20140052426A1
公开(公告)日：2014-02-20
申请号：US13585342
申请日：2012-08-14
IPC分类号： G06G7/48
CPC分类号： F01K13/02
摘要： A system and method control condensate formation within headers of a heat recovery steam generator (HRSG) in a power generation facility. The system includes measurement devices to measure first parameters including pressure at respective first locations within the power generation facility. A model estimates second parameters at second locations within the power generation facility. A prediction model outputs a prediction of time of condensate formation on each of the headers based on the first parameters and the second parameters, and a controller controls the condensate formation based on the prediction.
摘要翻译： 一种在发电设备中的热回收蒸汽发生器（HRSG）的集管内的系统和方法来控制冷凝物的形成。 该系统包括用于测量第一参数的测量装置，包括在发电设施内的各个第一位置处的压力。 一个模型估计发电设备内第二个位置的第二个参数。 预测模型基于第一参数和第二参数输出每个报头上的冷凝物形成时间的预测，并且控制器基于该预测来控制冷凝物的形成。
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6.发明申请AUTOMATED SYSTEM AND METHOD FOR IMPLEMENTING STATISTICAL COMPARISON OF POWER PLANT OPERATIONS 审中-公开自动化系统及实施电厂运行统计比较的方法公开(公告)号：US20120283885A1
公开(公告)日：2012-11-08
申请号：US13100479
申请日：2011-05-04
CPC分类号： G05B23/024
摘要： Systems and methods for analyzing power plant data include accessing data for one or more monitored parameters, generating a continuous time-series profile model (e.g., by generalized additive model and/or principal curves techniques) of selected parameters during instances of at least one given type of power plant operation, and conducting shape analysis by comparing the continuous time-series profile model of selected monitored parameters to an entitlement curve representing ideal performance for the at least one given type of power plant operation. Data associated with the profile modeling and shape analysis techniques may be provided as electronic output to a user. Additional steps or features may involve determining a capability index for selected monitored parameters, clustering together identified groups of profile models having similar profiles, monitoring and/or optimizing parameters to identify and improve power plant performance.
摘要翻译： 用于分析发电厂数据的系统和方法包括访问一个或多个监测参数的数据，在至少一个给定的实例期间生成所选参数的连续时间序列分布模型（例如，通过广义加法模型和/或主曲线技术） 并且通过将所选择的监视参数的连续时间序列轮廓模型与表示至少一种给定类型的发电厂操作的理想性能的授权曲线进行比较来进行形状分析。 与轮廓建模和形状分析技术相关联的数据可以作为电子输出提供给用户。 附加步骤或特征可以涉及确定所选被监测参数的能力指数，将识别出的具有相似简档的轮廓模型组聚集在一起，监测和/或优化参数以识别和改善发电厂性能。
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公开(公告)号：US08567175B2
公开(公告)日：2013-10-29
申请号：US13214915
申请日：2011-08-22
CPC分类号： F22B1/1815 , F01K7/00 , F01K23/101 , F22B35/007 , F22B35/18 , Y02E20/16
摘要： A system configured to decrease the emissions of a power plant system during transient state operation is disclosed. In one embodiment, a system includes: at least one computing device adapted to adjust a temperature of an operational steam in a power generation system by performing actions comprising: obtaining operational data about components of a steam turbine in the power generation system, the operational data including at least one of: a temperature of the components and a set of current ambient conditions at the power generation system; determining an allowable operational steam temperature range for the steam turbine based upon the operational data; generating emissions predictions for a set of temperatures within the allowable steam temperature range; and adjusting the temperature of the operational steam based upon the emissions predictions.
摘要翻译： 公开了一种被配置为在过渡状态操作期间减少发电厂系统的排放的系统。 在一个实施例中，系统包括：至少一个计算装置，其适于通过执行动作来调节发电系统中的运行蒸汽的温度，所述动作包括：获得关于所述发电系统中的汽轮机的组件的操作数据，所述运行数据 包括以下中的至少一个：所述部件的温度和所述发电系统处的一组当前的环境条件; 基于所述操作数据确定所述蒸汽轮机的允许操作蒸汽温度范围; 在允许的蒸汽温度范围内产生一组温度的排放预测; 并根据排放预测调整运行蒸汽的温度。
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8.发明申请公开(公告)号：US20100242430A1
公开(公告)日：2010-09-30
申请号：US12415413
申请日：2009-03-31
申请人： Tailai Hu , Richard Henry Langdon, II , Joel Donnell Holt , Leslie Yung-Min Tong , Diego Fernando Rancruel , Kelvin Rafael Estrada
发明人： Tailai Hu , Richard Henry Langdon, II , Joel Donnell Holt , Leslie Yung-Min Tong , Diego Fernando Rancruel , Kelvin Rafael Estrada
CPC分类号： F02C6/18 , F01K13/02 , F01K23/108 , Y02E20/16
摘要： A combined cycle power plant includes a gas turbomachine, a steam turbomachine operatively coupled to the gas turbomachine, and a heat recovery steam generator operatively coupled to the gas turbomachine and the steam turbomachine. The heat recovery steam generator includes a high pressure reheat section provided with at least one high pressure superheater and at least one reheater. The combined cycle power plant further includes a controller operatively connected to the gas turbomachine, the steam turbomachine and the heat recovery steam generator. The controller is selectively activated to initiate a flow of steam through the heat recovery steam generator following shutdown of the gas turbomachine to lower a temperature of at least one of the high pressure superheater and the at least one reheater and reduce development of condensate quench effects during HRSG purge of a combined cycle power plant shutdown.
摘要翻译： 联合循环发电厂包括气体涡轮机，可操作地耦合到气体涡轮机的蒸汽涡轮机，以及可操作地耦合到气体涡轮机和蒸汽涡轮机的热回收蒸汽发生器。 热回收蒸汽发生器包括设置有至少一个高压过热器和至少一个再热器的高压再热部分。 联合循环发电厂还包括可操作地连接到气体涡轮机，蒸汽涡轮机和热回收蒸汽发生器的控制器。 选择性地激活控制器以在关闭气体涡轮机之后启动通过热回收蒸汽发生器的蒸汽流，以降低至少一个高压过热器和至少一个再热器的温度，并减少冷凝器骤冷效应的发展 联合循环发电厂的HRSG清除关闭。
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公开(公告)号：US20100229524A1
公开(公告)日：2010-09-16
申请号：US12401512
申请日：2009-03-10
IPC分类号： F02C3/20
摘要： A method includes blending a first fuel with a second fuel in a ratio to produce a third mixed fuel. The first fuel has a first heating value, the second fuel has a second heating value, and the third mixed fuel has a third heating value. In addition, the first heating value is different than the second heating value. The method also includes feedforward controlling the third heating value of the third mixed fuel via prediction and correction of a fuel flow rate of the first and/or second fuels to adjust the ratio of the first and second fuels based at least in part on a comparison between a measurement and a target for the third heating value.
摘要翻译： 一种方法包括以一定比例混合第一燃料和第二燃料以产生第三混合燃料。 第一燃料具有第一加热值，第二燃料具有第二加热值，第三混合燃料具有第三加热值。 此外，第一加热值不同于第二加热值。 该方法还包括通过预测和校正第一和/或第二燃料的燃料流量来控制第三混合燃料的第三热值的前馈，以至少部分地基于比较来调节第一和第二燃料的比率 在第三加热值的测量和目标之间。
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公开(公告)号：US20090158738A1
公开(公告)日：2009-06-25
申请号：US12197712
申请日：2008-08-25
IPC分类号： F02K5/00
CPC分类号： F01K23/108 , Y02E20/16
摘要： Methods and apparatus for fast starting and loading a combined cycle power system are described. In one example embodiment, a method for starting a combined cycle power generation system is provided. The system includes a gas turbine and a steam turbine. The method includes loading the gas turbine at a loading rate that is facilitated to be at an increased loading rate, setting a first predetermined value for a bypass pressure set point for high-pressure steam, and increasing the first predetermined value to a second predetermined value at a predetermined rate.
摘要翻译： 描述了用于快速启动和加载联合循环电力系统的方法和装置。 在一个示例实施例中，提供了一种用于启动组合循环发电系统的方法。 该系统包括燃气轮机和汽轮机。 该方法包括以便于加载速度加快的负载速度装载燃气轮机，为高压蒸汽设定旁路压力设定点的第一预定值，将第一预定值增加到第二预定值 以预定速率。
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