公开(公告)号：US20180164379A1

公开(公告)日：2018-06-14

申请号：US15633930

申请日：2017-06-27

申请人： GE ENERGY PRODUCTS FRANCE SNC

发明人： Denis Michel MARTIN ,  Sabastien Philippe GROSSHANS

IPC分类号： G01R31/34 ,  G01P3/44

CPC分类号： H02P9/04 ,  F05D2270/02 ,  F05D2270/061 ,  G01P3/44 ,  G01R31/34 ,  H02J3/38 ,  H02J3/46 ,  H02P9/44

摘要： A method for determining a droop response profile of a rotating electrical machine supplying electricity to an electrical network having a network frequency varying on either side of a nominal frequency, wherein a measured rotational speed value and droop response parameters are defined. The droop response profile is a graph centered on the coordinates ([X5; Y5]) of an origin point between 99% and 101% of the measured speed value and defined by at least two coordinate points ([X4,Y4], [X0, Y0]) in the case of over-speed, each of the points having as abscissa a speed value as a percentage of the measured speed value, and for ordinates a filtered speed value as a percentage of the measured speed value modulated by at least one of the droop response parameters.

公开(公告)号：US20180097463A1

公开(公告)日：2018-04-05

申请号：US15282005

申请日：2016-09-30

申请人： General Electric Company

发明人： Sunil Unnikrishnan ,  Karl Dean Minto ,  Omprakash Pobbati

IPC分类号： H02P9/04 ,  H02K7/18 ,  F02C9/26

CPC分类号： H02P9/04 ,  F02C9/26 ,  F02C9/28 ,  F05D2260/81 ,  F05D2260/821 ,  F05D2270/053 ,  F05D2270/061 ,  F05D2270/304 ,  F05D2270/335 ,  H02K7/1823

摘要： In an embodiment, a control system includes a processor. The processor is configured to receive signals from one or more sensors disposed in a gas turbine system, wherein the gas turbine system comprises a shaft mechanically coupled to an electric generator. The processor is further configured to predict a derived mechanical power for the shaft based on the signals. The processor is additionally configured to derive a power adjustment by executing at least one model. The processor is also configured to derive a corrected mechanical power by applying the power adjustment to the derived mechanical power; and to control the gas turbine system based on the corrected mechanical power.

公开(公告)号：US20170002748A1

公开(公告)日：2017-01-05

申请号：US15105344

申请日：2015-02-04

申请人： MITSUBISHI HITACHI POWER SYSTEMS, LTD.

发明人： Takashi SONODA ,  Kazuya HIGASHI ,  Akihiko SAITO

IPC分类号： F02C9/54 ,  H02K7/18

CPC分类号： F02C9/54 ,  F02C9/20 ,  F02C9/22 ,  F05D2220/32 ,  F05D2270/053 ,  F05D2270/061 ,  F05D2270/3061 ,  H02K7/1823

摘要： A gas turbine drives a power generator by rotating a turbine using combustion gas generated in a combustor as a result of supplying the combustor with fuel and compressed air from a compressor, which is provided with an inlet guide vane at a front stage. An operation control device of the gas turbine enables an IGV priority open flag when the inlet guide vane is not fully open and when the system frequency is lower than or equal to a predetermined threshold value a or there is a request for increasing the output of the gas turbine. When the IGV priority open flag is enabled, the operation control device sets the degree of opening of the inlet guide vane to be larger than before. Accordingly, the output can be increased without having to increase the turbine inlet temperature, regardless of the operational state of the gas turbine.

摘要翻译： 燃气轮机通过使用在燃烧器中产生的燃烧气体来旋转涡轮来驱动发电机，这是由于在前级设置有入口导叶的压缩机向燃烧室供给燃料和压缩空气。 当入口引导叶片未完全打开时，当系统频率低于或等于预定阈值a时，燃气轮机的操作控制装置能够进行IGV优先打开标志，或者存在增加输出的请求 燃气轮机。 当IGV优先打开标志被使能时，操作控制装置将入口导叶的开度设定为比以前大。 因此，无论燃气轮机的运行状态如何，都能够增加输出，而不必增加涡轮机入口温度。

公开(公告)号：US09243519B2

公开(公告)日：2016-01-26

申请号：US13605288

申请日：2012-09-06

申请人： Bryan Edward Sweet ,  Yuhui Chen

发明人： Bryan Edward Sweet ,  Yuhui Chen

IPC分类号： F01K23/10 ,  F02C6/18 ,  F02C9/28

CPC分类号： F01K23/101 ,  F02C6/18 ,  F02C9/28 ,  F05D2220/72 ,  F05D2270/061 ,  F05D2270/20 ,  F05D2270/335 ,  Y02E20/16

摘要： According to one embodiment of the disclosure, a system for accelerating droop response in a combined cycle power plant may include a controller and a processor communicatively coupled to the controller. The processor may be configured to receive frequency variation data associated with a frequency variation of an electrical grid, determine, based at least in part on the frequency variation data, a target operational level of the combined cycle power plant and the droop response associated with the target operational level, calculate a variable compensation value, and apply the variable compensation value to the droop response until the target operational level is reached.

摘要翻译： 根据本公开的一个实施例，用于加速联合循环发电厂中的下垂响应的系统可以包括通信地耦合到控制器的控制器和处理器。 处理器可以被配置为接收与电网的频率变化相关联的频率变化数据，至少部分地基于频率变化数据确定组合循环发电厂的目标操作水平和与 目标操作级别，计算可变补偿值，并将可变补偿值应用于下垂响应，直到达到目标操作级别。

公开(公告)号：US20150033750A1

公开(公告)日：2015-02-05

申请号：US13955933

申请日：2013-07-31

申请人： General Electric Company

发明人： John Rogers Huey ,  Chi Ming Ho ,  Harold Lamar Jordan

IPC分类号： F02C9/28

CPC分类号： F02C9/28 ,  F01D15/10 ,  F05D2200/13 ,  F05D2220/76 ,  F05D2270/053 ,  F05D2270/061 ,  F05D2270/304 ,  F05D2270/309 ,  F05D2270/335 ,  F05D2270/705 ,  F05D2270/807 ,  H02J3/386 ,  H02P9/04 ,  Y02E10/763

摘要： A power system includes a gas turbine configured to rotate a shaft to supply power to an electricity grid and a controller configured to detect a change in a speed of the shaft and to adjust a formula for controlling a fuel supplied to a combustor of the gas turbine based on detecting a changing shaft speed.

摘要翻译： 电力系统包括燃气涡轮机，其构造成使轴旋转以向电网供电;以及控制器，其构造成检测所述轴的速度变化，并且调整用于控制供应到所述燃气轮机的燃烧器的燃料的配方 基于检测变速轴速度。

公开(公告)号：US20140260293A1

公开(公告)日：2014-09-18

申请号：US13801498

申请日：2013-03-13

申请人： GENERAL ELECTRIC COMPANY

发明人： Yuhui Chen ,  John Dalton Warren

IPC分类号： F02C9/00

CPC分类号： F02C9/00 ,  F02C9/28 ,  F05D2270/02 ,  F05D2270/061

摘要： A system includes a controller configured to control an operational behavior of a turbine system. The controller includes a droop response system configured to detect one or more operational characteristics of the turbine system as an indication of a frequency variation of an electric power system associated with the turbine system. The droop response system is further configured to generate a response to vary an output of the turbine system in response to the indication of the frequency variation. The controller includes a multivariable droop response correction system configured to determine one or more possible errors associated with the one or more operational characteristics of the turbine system, and to generate a plurality of correction factors to apply to the response generated by the droop response system. The plurality of correction factors is configured to correct the response generated by the droop response system.

摘要翻译： 系统包括被配置为控制涡轮机系统的操作特性的控制器。 控制器包括下垂响应系统，其被配置为检测涡轮机系统的一个或多个操作特性，作为与涡轮机系统相关联的电力系统的频率变化的指示。 下垂响应系统还被配置为响应于频率变化的指示而产生响应以改变涡轮机系统的输出。 控制器包括多变量下垂响应校正系统，其被配置为确定与涡轮机系统的一个或多个操作特性相关联的一个或多个可能误差，并且生成多个校正因子以应用于由下垂响应系统产生的响应。 多个校正因子被配置为校正由下垂响应系统产生的响应。

公开(公告)号：US20140069104A1

公开(公告)日：2014-03-13

申请号：US14024781

申请日：2013-09-12

申请人： ALSTOM Technology Ltd

发明人： Kevin Chan ,  Hongtao Li ,  Joerg Oesterheld

IPC分类号： F02C9/16

CPC分类号： F02C9/16 ,  F02C9/00 ,  F02C9/28 ,  F05D2270/053 ,  F05D2270/061 ,  F05D2270/091 ,  H02J3/24

摘要： The invention relates to a method for operating a thermal power plant, which includes a gas turbine and a generator driven directly by the gas turbine by means of a shaft and being connected to an electrical grid having a grid frequency (FG) via an electronic decoupling apparatus and a step-up transformer. A synthetic inertia response is achieved by said method includes the steps of: sensing said grid frequency (FG); detecting if in case of an excursion of said grid frequency (FG) additional inertial power is required or not; if inertial power is required, calculating the magnitude and duration of the additional inertial power; and releasing additional inertial power to said electrical grid in accordance with said calculations via said electronic decoupling apparatus.

摘要翻译： 本发明涉及一种用于操作火力发电厂的方法，其包括燃气轮机和通过轴直接由燃气涡轮驱动的发电机，并通过电子去耦连接到具有电网频率（FG）的电网 装置和升压变压器。 通过所述方法实现合成惯性响应，包括以下步骤：感测所述电网频率（FG）; 检测在所述电网频率（FG）的偏移的情况下是否需要额外的惯性功率; 如果需要惯性功率，则计算附加惯性功率的大小和持续时间; 并且根据经由所述电子去耦装置的所述计算，向所述电网释放额外的惯性功率。

公开(公告)号：US20140060065A1

公开(公告)日：2014-03-06

申请号：US13605288

申请日：2012-09-06

申请人： Bryan Edward Sweet ,  Yuhui Chen

发明人： Bryan Edward Sweet ,  Yuhui Chen

IPC分类号： F01K23/06 ,  F02C9/00 ,  F02C6/04

CPC分类号： F01K23/101 ,  F02C6/18 ,  F02C9/28 ,  F05D2220/72 ,  F05D2270/061 ,  F05D2270/20 ,  F05D2270/335 ,  Y02E20/16

摘要： Systems and methods for accelerating droop response in a combined cycle power plant are provided. According to one embodiment if the disclosure, a system may include a controller and a processor communicatively coupled to the controller. The processor may be configured to receive frequency variation data associated with a frequency variation of an electrical grid, determine, based at least in part on the frequency variation data, a target operational level of the combined cycle power plant and the droop response associated with the target operational level, calculate a variable compensation value, and apply the variable compensation value to the droop response until the target operational level is reached.

摘要翻译： 提供了在联合循环发电厂中加速下垂响应的系统和方法。 根据一个实施例，如果本公开，系统可以包括通信地耦合到控制器的控制器和处理器。 处理器可以被配置为接收与电网的频率变化相关联的频率变化数据，至少部分地基于频率变化数据确定组合循环发电厂的目标操作水平和与 目标操作级别，计算可变补偿值，并将可变补偿值应用于下垂响应，直到达到目标操作级别。

公开(公告)号：US20140003939A1

公开(公告)日：2014-01-02

申请号：US14005157

申请日：2012-03-15

申请人： Douglas E. Adams ,  Joseph Yutzy ,  Scott R. Dana

发明人： Douglas E. Adams ,  Joseph Yutzy ,  Scott R. Dana

IPC分类号： F03D7/04

CPC分类号： F03D7/045 ,  F03D7/0224 ,  F03D7/0284 ,  F03D7/043 ,  F03D7/048 ,  F05B2270/80 ,  F05B2270/804 ,  F05D2270/061 ,  Y02B10/30 ,  Y02E10/723

摘要： Methods and apparatus for control and monitoring of wind turbines. Various embodiments pertain to the operational analysis of vibratory modes of the blades of the wind turbine. This real time analysis of blade modal response can be used as feedback in a control system to change the yaw angle of the hub and nacelle to capture higher power from the wind stream, change the pitch on one or more blades to reduce uneven blade loading, to identify damage to a blade, and further to identify the accumulation of ice on a blade.

摘要翻译： 风力发电机组控制和监测方法与装置。 各种实施例涉及风力涡轮机的叶片的振动模式的操作分析。 刀片模态响应的这种实时分析可以用作控制系统中的反馈，以改变轮毂和机舱的偏航角以从风流捕获更高的功率，改变一个或多个叶片上的桨距以减少不均匀的叶片负载， 以识别对叶片的损害，并进一步识别冰在叶片上的积聚。

公开(公告)号：US08169100B2

公开(公告)日：2012-05-01

申请号：US12022236

申请日：2008-01-30

申请人： Kevin Allan Dooley

发明人： Kevin Allan Dooley

IPC分类号： F02N11/04 ,  H02K23/52 ,  H02P9/04

CPC分类号： F02C7/36 ,  F02C7/275 ,  F05D2220/76 ,  F05D2260/85 ,  F05D2270/061 ,  Y02T50/671 ,  Y10T74/19177

摘要： The torque transmission system for an aircraft engine permits a starter-generator to drive the engine on starting at a speed reducing ratio. Once the engine is running, the engine then drives the starter-generator also at a speed reducing ratio.

摘要翻译： 用于飞机发动机的扭矩传递系统允许起动发电机以减速比起动以驱动发动机。 一旦发动机运转，发动机也以减速比驱动起动发电机。