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公开(公告)号：US11746709B2
公开(公告)日：2023-09-05
申请号：US17431632
申请日：2020-01-31
发明人： Florent Jeannesson , Boris Seewald , Hang-Mi Tran
CPC分类号： F02C9/263 , F02C9/32 , F02C9/46 , F05D2260/80 , F05D2260/84 , F05D2270/46
摘要： A method for controlling a fuel metering device with a movable metering element, comprising at least two iterations of the following steps:
a detection (E1) of a possible change in the operating state among two position sensors of the metering element, if no change in the operating state is detected, a determination (E2_1) of the position of the metering element from an average of the measurements of the sensors or otherwise a determination (E2_2) from the non-defective sensor,
a determination (E4) of a fuel flow rate setpoint, a conversion (E5) of the flow rate setpoint,
a determination (E6) of a command of displacement of the metering element, a control (E7) of the position of the metering element, and
if a change in the operating state is detected, the calculation of an instantaneous fuel flow rate from the position of the metering element, and, during the second iteration of the method, the determination of the flow rate setpoint according to instantaneous flow rate to match the position setpoint to the position of the metering element.-
公开(公告)号：US09933336B2
公开(公告)日：2018-04-03
申请号：US14488686
申请日：2014-09-17
IPC分类号： F02C9/46 , G01M15/14 , F02C9/42 , F23N5/24 , F02C9/28 , F02C7/25 , F02C9/26 , F23N1/00 , F01D21/14 , F02C9/32 , F02C7/22 , F02C7/228
CPC分类号： G01M15/14 , F01D21/14 , F02C7/22 , F02C7/222 , F02C7/228 , F02C7/25 , F02C9/26 , F02C9/28 , F02C9/285 , F02C9/32 , F02C9/42 , F02C9/46 , F05B2260/80 , F05B2270/309 , F05B2270/335 , F05B2270/337 , F05D2260/80 , F05D2270/309 , F05D2270/335 , F23N1/00 , F23N5/24 , F23N5/242 , F23N5/245 , F23N5/247 , F23N2041/20
摘要： The invention relates to a method for detecting a fuel leakage in the fuel distribution system between a fuel control valve and at least one burner of a gas turbine during the operation of the gas turbine. In order to detect a fuel leakage, the fuel consumption is approximated in accordance with the mechanical power of the gas turbine, the fuel amount fed to the fuel distribution system is determined, and the leakage flow is determined from the difference between the fed fuel amount and the fuel consumption. The invention further relates to a gas turbine for performing such a method.
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公开(公告)号：US20180016991A1
公开(公告)日：2018-01-18
申请号：US15210382
申请日：2016-07-14
CPC分类号： F02C9/32 , F02C7/232 , F02C9/263 , F02C9/40 , F05D2270/44 , F05D2270/71
摘要： A method using an inverse three-way valve model with feed-forward fuel flow control is provided for controlling liquid fuel flow in a turbine power generation system to achieve a bump-less driven watts (dwatt) power output during fuel mode transitions between passive mode and active mode operations of a three-way check valve that delivers liquid fuel to the turbine combustor nozzles. The method utilizes an inverse fluid flow model for a three-way check valve which is based upon a valve position surrogate for the three-way check valve to develop a calculated estimate of a fuel spike/dwatt oscillation likely to occur during mode transitions of the three-way check valve and to produce a feed-forward control used to modulate a fuel path bypass valve within the turbine fuel supply circulation system that provides the liquid fuel to the three-way valve during transfers of valve operation between passive and active mode operations.
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公开(公告)号：US09581088B2
公开(公告)日：2017-02-28
申请号：US14295867
申请日：2014-06-04
申请人： Rolls-Royce PLC
发明人： Yong Qin , Andrew Stevenson
CPC分类号： F02C9/263 , F02C7/22 , F02C7/222 , F02C7/228 , F02C9/26 , F02C9/28 , F02C9/32 , F02C9/34 , F05D2260/80 , F05D2270/301 , F23R3/346
摘要： A control system is provided for performing staging control of a multi-stage combustor of a gas turbine engine. The fuel is fed to the combustor by a fuel supply system comprising: a plurality of fuel manifolds distributing fuel to respective stages of the combustor, a fuel metering valve operable to control the rate at which fuel passes to the fuel manifolds, and an actuating arrangement which splits the fuel flow from the fuel metering valve between the fuel manifolds. The control system includes a fuel pressure sensor arrangement which senses the fuel pressure at entry to the actuating arrangement, and/or in one or more of the fuel manifolds. The control system further includes a controller which repeatedly: calculates a fuel split between the fuel manifolds based on the sensed fuel pressure(s), and issues a command signal to the actuating arrangement to implement the calculated fuel pressure-based fuel split.
摘要翻译： 提供了一种控制系统，用于执行燃气轮机的多级燃烧器的分级控制。 燃料通过燃料供给系统供给到燃烧器，该燃料供给系统包括：将燃料分配到燃烧器的各个级的多个燃料歧管，可操作以控制燃料通过燃料歧管的速率的燃料计量阀，以及致动装置 其将来自燃料计量阀的燃料流分解在燃料歧管之间。 控制系统包括燃料压力传感器装置，其感测在进入致动装置时和/或在一个或多个燃料歧管中的燃料压力。 控制系统还包括控制器，其重复地：基于检测到的燃料压力来计算燃料歧管之间的燃料分配，并且向致动装置发出命令信号以实现所计算的基于燃料压力的燃料分配。
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5.发明授权Fuel supply apparatus, fuel-flow-rate-control unit, and gas-turbine power generating plant 有权燃料供给装置，燃料流量控制单元和燃气轮机发电厂公开(公告)号：US09441545B2
公开(公告)日：2016-09-13
申请号：US13728661
申请日：2012-12-27
发明人： Shoichi Harada
CPC分类号： F02C7/232 , F02C7/22 , F02C9/28 , F02C9/32 , F02C9/40 , F05D2270/301 , F05D2270/304
摘要： A fuel supply apparatus is provided with a plurality of flow-rate regulating valves that regulate the flow rate of fuel flowing in a fuel supply line; a calculating section that calculates a required flow-rate coefficient on the basis of at least a fuel pressure in the fuel flow upstream of the flow-rate regulating valves, a pressure determined in advance as a fuel pressure downstream of the flow-rate regulating valves, and the flow rate of fuel to be supplied to one fuel nozzle among different kinds of fuel nozzles, the required flow-rate coefficient being the coefficient of the flow-rate regulating valve corresponding to the one fuel nozzle; and a valve control section that controls the degree-of-opening of the flow-rate regulating valve corresponding to the one fuel nozzle on the basis of the required flow-rate coefficient.
摘要翻译： 燃料供给装置设有多个流量调节阀，其调节在燃料供给管线中流动的燃料的流量; 计算部，其基于至少在所述流量调节阀的上游的燃料流中的燃料压力计算所需流量系数，预先作为所述流量调节阀下游的燃料压力确定的压力 以及在不同种类的燃料喷嘴中供给到一个燃料喷嘴的燃料的流量，所需流量系数是与一个燃料喷嘴对应的流量调节阀的系数; 以及阀控制部，其基于所需的流量系数来控制与一个燃料喷嘴对应的流量调节阀的开度。
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公开(公告)号：US20160153365A1
公开(公告)日：2016-06-02
申请号：US14815207
申请日：2015-07-31
申请人： ROLLS-ROYCE plc
CPC分类号： F02C9/32 , F02C3/13 , F02C3/14 , F02C7/222 , F02C9/18 , F02C9/50 , F02C9/52 , F02C9/54 , F05D2220/32 , F05D2240/35 , F05D2270/112 , F05D2270/3061 , F05D2270/31 , F23R3/26
摘要： A method of operating a gas turbine engine (20) comprising a variable geometry compressor (24), a variable geometry combustor (28), and a variable geometry turbine (30). The method comprises operating the variable geometry combustor (28) such that a corrected flow ωc through a combustion zone (46, 48) of the combustor (28) matches a predetermined value.
摘要翻译： 一种操作包括可变几何形状压缩机（24），可变几何形状燃烧器（28）和可变几何涡轮机（30）的燃气涡轮发动机（20）的方法。 该方法包括操作可变几何形状燃烧器（28），使得通过燃烧器（28）的燃烧区（46,48）的校正流量ωc匹配预定值。
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公开(公告)号：US09206746B2
公开(公告)日：2015-12-08
申请号：US13540144
申请日：2012-07-02
申请人： Cedrik Djelassi
发明人： Cedrik Djelassi
CPC分类号： F02C9/28 , F02C9/26 , F02C9/32 , F02K1/17 , F05D2270/04 , F05D2270/042 , F05D2270/101 , F05D2270/304
摘要： A method of controlling an engine in which a fuel flow setpoint is determined is provided. The method includes implementing a steady speed regulation loop in which the fuel-flow-rate setpoint is determined as a function of a difference between a setpoint parameter that depends on the position of a control lever and an operating parameter of the engine; detecting an intended speed transient; and implementing a speed transient regulation loop in which the fuel-flow-rate setpoint is determined as a function of a difference between a speed of the engine and a speed setpoint varying over time with the speed trajectory as generated in predetermined manner, if a speed transient is detected.
摘要翻译： 提供一种控制其中确定燃料流量设定点的发动机的方法。 该方法包括实现稳定的速度调节回路，其中燃料流量设定点被确定为取决于控制杆的位置和发动机的操作参数的设定点参数之间的差的函数; 检测预期的速度瞬变; 并且实施速度瞬态调节回路，其中燃料流量设定点被确定为发动机的速度与随时间变化的速度设定点之间的差异与以预定方式产生的速度轨迹的差的函数，如果速度 检测到瞬态。
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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：US20150192075A1
公开(公告)日：2015-07-09
申请号：US14528562
申请日：2014-10-30
发明人： Michael GRIFFITHS
CPC分类号： F02C9/30 , F01D19/00 , F02C7/236 , F02C7/26 , F02C9/28 , F02C9/32 , F05D2220/323 , F05D2260/85 , F05D2270/03 , F05D2270/07 , F05D2270/304 , F05D2270/56 , F05D2270/64 , F05D2270/66 , Y02T50/671
摘要： An engine fuel control system includes a fuel metering valve that controls the flow of fuel between supply and delivery lines which delivers fuel to engine burners. The fuel control system includes a fixed displacement main pump which receives fuel from a low pressure source and delivers the fuel at a first high pressure to the supply line, an augmenter pump which receives fuel from the low pressure source and delivers the fuel at a second high pressure to one or more fuel-pressure operated auxiliary engine devices, and a start valve which is actuated at low engine speeds to open a flow path which diverts fuel delivered by the augmenter pump away from the auxiliary engine devices to the supply line to augment the fuel delivered thereto by the main pump, the start valve being actuated at higher engine speeds to shut the flow path.
摘要翻译： 发动机燃料控制系统包括燃料计量阀，其控制在将燃料输送到发动机燃烧器的供应和输送管线之间的燃料流动。 燃料控制系统包括固定排量主泵，其从低压源接收燃料并将燃料以第一高压输送到供应管线;增压泵，其从低压源接收燃料并在第二高压源处输送燃料 一个或多个燃料压力操作的辅助发动机装置的高压，以及以低发动机转速致动的起动阀，以打开将由增压泵输送的燃料从辅助发动机装置转移到供应管线以增加的流动路径 由主泵输送的燃料，起动阀以更高的发动机转速被致动以关闭流路。
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公开(公告)号：US20150192073A1
公开(公告)日：2015-07-09
申请号：US14528409
申请日：2014-10-30
发明人： Michael GRIFFITHS , Roger SOUTHERAN
CPC分类号： F02C9/263 , F01D17/10 , F02C7/22 , F02C7/232 , F02C7/236 , F02C9/32 , F05D2220/32 , F05D2270/3015 , F05D2270/306
摘要： An engine fuel control system is provided, including a supply line for the supply of fuel to a fuel metering valve which controls the flow of fuel to burners of an engine. Fuel is delivered at a first high pressure to the supply line by a pump arrangement. The engine fuel control system includes a restrictor located in the supply line for passage of the fuel delivered by the pump arrangement therethrough. The restrictor is configured such that fuel exiting the restrictor for onward supply to the fuel metering valve is at a second high pressure which is lower than the first high pressure. The engine fuel control system includes pressure limiting valves which actuate when the pressure difference between the first high and low pressure reaches a predetermined level to open a flow path for fuel on the supply line to by-pass the restrictor, thereby limiting the pressure difference.
摘要翻译： 提供了一种发动机燃料控制系统，其包括用于向燃料计量阀供应燃料的供应管线，该燃料计量阀控制向发动机燃烧器的燃料的流动。 燃料通过泵装置以第一高压输送到供应管线。 发动机燃料控制系统包括位于供应管线中的限流器，用于通过泵装置输送的燃料通过。 限流器构造成使得离开限流器的燃料用于向燃料计量阀的先前供给处于低于第一高压的第二高压。 发动机燃料控制系统包括压力限制阀，当第一高压和低压之间的压力差达到预定水平时开启压力限制阀，以打开用于供应管线上的燃料的流动路径，以限制限流器，从而限制压力差。
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