公开(公告)号：US10113487B2

公开(公告)日：2018-10-30

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 ,  F02C9/28

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.

公开(公告)号：US09732625B2

公开(公告)日：2017-08-15

申请号：US14599921

申请日：2015-01-19

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Chaohong Cai

IPC: F01D21/00 ,  F01D17/10 ,  F01D17/06 ,  G05B13/04

CPC classification number: F01D21/003 ,  F01D17/06 ,  F01D17/105 ,  F05D2220/32 ,  F05D2240/12 ,  F05D2270/304 ,  F05D2270/335 ,  F05D2270/52 ,  F05D2270/62 ,  G05B13/048

Abstract: A control system for a gas turbine engine including a power turbine is disclosed. The control system may include a control module to receive engine operating goals and an estimated current engine state, wherein the estimated current engine state is produced by a model-based estimation module using a bandwidth signal produced by an adaptation logic module. The control module is operative to determine fuel flow, inlet guide vane schedules and stability bleed schedules based at least in part on the received engine operating goals and the estimated current engine state, 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, inlet guide vane schedules and stability bleed schedules.

公开(公告)号：US20170198643A1

公开(公告)日：2017-07-13

申请号：US15262925

申请日：2016-09-12

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Chaohong Cai ,  Joshua Adams ,  Richard P. Meisner

IPC: F02C9/00

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.

公开(公告)号：US09494085B2

公开(公告)日：2016-11-15

申请号：US14599937

申请日：2015-01-19

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Chaohong Cai

IPC: G06F19/00 ,  F02C9/00 ,  B64D35/00 ,  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。

公开(公告)号：US20160138523A1

公开(公告)日：2016-05-19

申请号：US14921019

申请日：2015-10-23

Applicant: United Technologies Corporation

Inventor： Chaohong Cai ,  Timothy J. Crowley ,  Mark E. Lacour ,  David L. Ma

IPC: F02K1/17 ,  F02C9/50

CPC classification number: F02K1/17 ,  F02C9/00 ,  F02C9/50 ,  F02C9/54 ,  F05D2270/20 ,  F05D2270/44 ,  F05D2270/71

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.

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。 控制系统可以包括用于基于与飞行条件相关的排气喷嘴位置的喷嘴计划来确定排气喷嘴位置目标的喷嘴调度器。 控制系统还可以包括用于确定燃气涡轮发动机的控制命令的控制模块。 控制命令至少可以包括燃料流量指令和排气喷嘴位置指令，并且控制命令可以至少基于排气喷嘴位置目标和估计推力值。 控制系统还可以包括用于基于控制命令控制燃气涡轮发动机的致动器。

公开(公告)号：US09206745B1

公开(公告)日：2015-12-08

申请号：US14623063

申请日：2015-02-16

Applicant: United Technologies Corporation

Inventor： Chaohong Cai ,  Joshua Adams ,  Richard P. Meisner

IPC: G06F19/00 ,  G05D17/00 ,  F02C9/00 ,  F01D17/00

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.