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公开(公告)号：US20160069277A1
公开(公告)日：2016-03-10
申请号：US14626163
申请日：2015-02-19
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： Richard P. MEISNER , Chaohong Cai , James W. Fuller , Timothy J. Crowley
CPC classification number: F02C9/52 , F02C9/00 , F02C9/28 , F02C9/54 , F05D2270/02 , F05D2270/304
Abstract: A system and methods are provided for controlling turboshaft engines. In one embodiment, a method includes receiving input signals for a collective lever angle (CLA) command and real-time power turbine speed (NP) of an engine, determining system data for engine effectors by the control unit based on the input signals for the collective lever angle (CLA) command and the real-time power turbine speed (NP) based on an integrated model for the turboshaft engine including a model of a gas generator section of the turboshaft engine and a model of a power turbine and rotor load section of the turboshaft engine. The method may also include determining control output based on model-based multi-variable control including optimization formulation and a constrained optimization solver. The method may also include outputting one or more control signals for control of the turboshaft engine.
Abstract translation: 提供了一种用于控制涡轮轴发动机的系统和方法。 在一个实施例中，一种方法包括接收用于集体杠杆角（CLA）指令和发动机的实时动力涡轮转速（NP）的输入信号，由控制单元基于输入信号的输入信号确定发动机效应器的系统数据 集体杠杆角（CLA）指令和基于用于涡轮轴发动机的综合模型的实时功率涡轮转速（NP），其包括涡轮轴发动机的气体发生器部分的模型和动力涡轮机和转子负载部分的模型 的涡轮轴发动机。 该方法还可以包括基于基于模型的多变量控制来确定控制输出，包括优化公式和约束优化求解器。 该方法还可以包括输出用于控制涡轮轴发动机的一个或多个控制信号。
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公开(公告)号：US11346290B2
公开(公告)日：2022-05-31
申请号：US16797572
申请日：2020-02-21
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： Chaohong Cai , Richard P. Meisner , Timothy J. Crowley , David Lei Ma
IPC: F02C9/28
Abstract: A control system for limiting a power turbine torque of a gas turbine engine is disclosed. In various embodiments, the control system includes an engine control module configured to output an effector command signal to a gas generator of the gas turbine engine; a power turbine governor module configured to output to the engine control module a power turbine torque request signal; and a power turbine torque limiter module configured to output to the power turbine governor module a power turbine speed rate signal to limit a power turbine speed overshoot of the gas turbine engine.
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公开(公告)号：US10711734B2
公开(公告)日：2020-07-14
申请号：US16377488
申请日：2019-04-08
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： Chaohong Cai , Timothy J. Crowley , Mark E. Lacour , David Lei Ma
Abstract: A control system for a gas turbine engine, a method for controlling a gas turbine engine, and a gas turbine engine are disclosed. The control system may include a nozzle scheduler for determining an exhaust nozzle position goal based on a nozzle schedule of exhaust nozzle positions related to flight conditions. The control system may further include a control module for determining a control command for the gas turbine engine. The control command may include, at least, a fuel flow command and an exhaust nozzle position command and the control command may be based on, at least, the exhaust nozzle position goal and an estimated thrust value. The control system may further include an actuator for controlling the gas turbine engine based on the control command.
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公开(公告)号：US20190338754A1
公开(公告)日：2019-11-07
申请号：US15971300
申请日：2018-05-04
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： Chaohong Cai , Timothy J. Crowley , David Lei Ma , Richard P. Meisner
Abstract: A control system for limiting power turbine torque (QPT) of a gas turbine engine includes a controller including a processor and memory configured to control the gas turbine engine, the controller including an engine control module that provides an effector command signal to a gas generator of the gas turbine engine; a power turbine governor module that outputs a preliminary torque request (QPT_req_pre); and a power turbine torque (QPT) optimal limiter module that outputs a maximum torque topper (QPT_max) to limit a power turbine speed overshoot of the gas turbine engine; wherein the controller outputs a minimum value between the preliminary torque request (QPT_req_pre) and the maximum torque topper (QPT_max) to the engine control module.
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公开(公告)号：US10036331B2
公开(公告)日：2018-07-31
申请号：US15263414
申请日：2016-09-13
Applicant: United Technologies Corporation
Inventor： Chaohong Cai , Timothy J. Crowley , Richard P. Meisner
CPC classification number: F02C9/52 , B64D27/10 , F02C3/04 , F02C9/42 , F02C9/54 , F05D2220/329 , F05D2270/02 , F05D2270/052 , F05D2270/13 , F05D2270/44
Abstract: A method and control system for an aircraft using a gas turbine engine is provided. The control system includes a controller that includes a load and engine control modules and communicates control signals to a plant that includes a gas generator and a rotor load, an engine estimation module that receives engine state measurements and effector feedback/command signals from the controller and communicates a power turbine torque estimate, and a load estimation module that receives signals including the power turbine torque estimate, a first power turbine speed value, a first power turbine torque value, a second power turbine speed value, a second power turbine torque value, and a rotor speed value. The load estimation module generates one or more of a power turbine speed estimate, a power turbine torque estimate, and a rotor load estimate based on the received signals.
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Patent Agency Ranking
公开(公告)号：US20180073441A1
公开(公告)日：2018-03-15
申请号：US15263414
申请日：2016-09-13
Applicant: United Technologies Corporation
Inventor： Chaohong Cai , Timothy J. Crowley , Richard P. Meisner
CPC classification number: F02C9/52 , B64C27/12 , B64D27/10 , F02C3/04 , F02C9/42 , F02C9/54 , F05D2220/329 , F05D2270/02 , F05D2270/052 , F05D2270/13 , F05D2270/44
Abstract: A method and control system for an aircraft using a gas turbine engine is provided. The control system includes a controller that includes a load and engine control modules and communicates control signals to a plant that includes a gas generator and a rotor load, an engine estimation module that receives engine state measurements and effector feedback/command signals from the controller and communicates a power turbine torque estimate, and a load estimation module that receives signals including the power turbine torque estimate, a first power turbine speed value, a first power turbine torque value, a second power turbine speed value, a second power turbine torque value, and a rotor speed value. The load estimation module generates one or more of a power turbine speed estimate, a power turbine torque estimate, and a rotor load estimate based on the received signals.
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17.发明申请公开(公告)号：US20160208717A1
公开(公告)日：2016-07-21
申请号：US14599937
申请日：2015-01-19
Applicant: United Technologies Corporation
Inventor： Chaohong Cai
IPC: F02C9/54
CPC classification number: F02C9/54 , F02C3/10 , F05D2220/329 , F05D2270/021 , F05D2270/052 , F05D2270/101 , F05D2270/304 , F05D2270/335 , F05D2270/44 , F05D2270/705
Abstract: A control system for a gas turbine engine including a power turbine is disclosed. The control system may also include an outer loop control module to determine a torque request. The outer loop control module may include a feedback control component operative to provide regulation of the power turbine, a feed-forward component operative to anticipate a load on the power turbine, and a hybrid control component operative to prevent output of a torque request that cannot currently be delivered by the power turbine. The control system may also include an inner loop control module to receive the torque request from the outer loop control module, to determine fuel flow and inlet guide vane schedules based at least in part on the received torque request, and to send signals to control a gas generator of the gas turbine engine according to the determined fuel flow and inlet guide vane schedules.
Abstract translation: 公开了一种用于包括动力涡轮机的燃气涡轮发动机的控制系统。 控制系统还可以包括用于确定扭矩请求的外环控制模块。 外环控制模块可以包括可操作以提供动力涡轮机的调节的反馈控制部件，用于预测动力涡轮机上的负载的前馈部件，以及混合控制部件，其可操作以防止输出不能 目前由动力涡轮机交付。 控制系统还可以包括内环控制模块，用于接收来自外环控制模块的扭矩请求，以至少部分地基于所接收的扭矩请求来确定燃料流量和入口引导叶片计划，并发送信号以控制 燃气涡轮发动机的气体发生器根据确定的燃料流量和入口引导叶片时间表。
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18.发明申请Model-Based Optimal Control For Stall Margin Limit Protection in an Aircraft Engine 有权基于模型的最优控制飞机发动机失速保护限制公开(公告)号：US20150345403A1
公开(公告)日：2015-12-03
申请号：US14623063
申请日：2015-02-16
Applicant: United Technologies Corporation
Inventor： Chaohong Cai , Joshua Adams , Richard P. Meisner
CPC classification number: B60T7/12 , F01D17/00 , F02C9/00 , F02C9/52 , F02C9/54 , F04D27/0261 , F05D2260/80 , F05D2260/81 , F05D2260/83 , F05D2270/301 , F05D2270/303 , F05D2270/304 , F05D2270/334 , F05D2270/44 , G06F19/00
Abstract: A control system for a gas turbine engine, a method for controlling a gas turbine engine, and a gas turbine engine are disclosed. The control system may include a hybrid model predictive control (HMPC) module, the HMPC module receiving power goals and operability limits and determining a multi-variable control command for the gas turbine engine, the multi-variable control command determined using the power goals, the operability limits, actuator goals, sensor signals, and synthesis signals. The control system may further include system sensors for determining the sensor signals and a non-linear engine model for estimating corrected speed signals and synthesis signals using the sensor signals, the synthesis signals including an estimated stall margin remaining. The control system may further include a goal generation module for determining actuator goals for the HMPC module using the corrected speed signals and an actuator for controlling the gas turbine engine based on the multivariable control command.
Abstract translation: 公开了一种燃气轮机的控制系统，燃气轮机的控制方法和燃气轮机。 控制系统可以包括混合模型预测控制（HMPC）模块，HMPC模块接收功率目标和可操作性限制，并且确定用于燃气涡轮发动机的多变量控制命令，使用功率目标确定的多变量控制命令， 可操作性限制，执行器目标，传感器信号和合成信号。 控制系统还可以包括用于确定传感器信号的系统传感器和用于使用传感器信号估计校正的速度信号和合成信号的非线性发动机模型，所述合成信号包括剩余的估计失速余量。 控制系统还可以包括目标产生模块，用于使用校正的速度信号确定HMPC模块的致动器目标，以及基于多变量控制命令来控制燃气涡轮发动机的致动器。
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公开(公告)号：US20150113996A1
公开(公告)日：2015-04-30
申请号：US14282544
申请日：2014-05-20
Applicant: United Technologies Corporation
Inventor： Chaohong Cai , Timothy J. Crowley , Richard P. Meisner
IPC: F02C9/54
CPC classification number: F02C9/54 , F02C9/28 , F05D2220/329 , F05D2270/052
Abstract: A control system for a gas turbine engine is disclosed. The control system may include a computer processor. The control system may also include an outer loop control module programmed into the computer processor to determine a torque request based at least in part on a real-time collective lever angle command. The control system may also include an inner loop control module programmed into the computer processor to receive the torque request from the outer loop control module, to determine fuel flow and inlet guide vane schedules based at least in part on the received torque request, and to send signals to a gas generator of the gas turbine engine in order to control the gas generator according to the determined fuel flow and inlet guide vane schedules.
Abstract translation: 公开了一种用于燃气涡轮发动机的控制系统。 控制系统可以包括计算机处理器。 控制系统还可以包括被编程到计算机处理器中以至少部分地基于实时集体杠杆角度命令来确定扭矩请求的外环控制模块。 控制系统还可以包括内部循环控制模块，该内部循环控制模块被编程到计算机处理器中以接收来自外部循环控制模块的扭矩请求，以至少部分地基于所接收的扭矩请求来确定燃料流量和入口引导叶片计划，并且 将信号发送到燃气涡轮发动机的气体发生器，以便根据确定的燃料流量和入口引导叶片时间表来控制气体发生器。
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公开(公告)号：US20190309689A1
公开(公告)日：2019-10-10
申请号：US15945556
申请日：2018-04-04
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： Richard P. Meisner , Chaohong Cai , Timothy J. Crowley
Abstract: A power turbine control system for a gas turbine engine may comprise a controller comprising one or more processors in communication with the gas turbine engine. The processors may comprise an engine control module configured to receive a torque request signal and generate a torque achieved signal. A rate of change of power turbine speed estimation module may generate an estimated rate of change of power turbine speed signal. A dynamic inversion power turbine governor module may generate the torque request signal based on the torque achieved signal and estimated rate of change of power turbine speed signal.
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