Invention Grant
- Patent Title: System and method for control of gas turbine engine
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Application No.: US15367585Application Date: 2016-12-02
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Publication No.: US10584646B2Publication Date: 2020-03-10
- Inventor: Gabriel Meunier
- Applicant: PRATT & WHITNEY CANADA CORP.
- Applicant Address: CA Longueuil
- Assignee: PRATT & WHITNEY CANADA CORP.
- Current Assignee: PRATT & WHITNEY CANADA CORP.
- Current Assignee Address: CA Longueuil
- Agency: Norton Rose Fulbright Canada LLP
- Main IPC: F02C9/28
- IPC: F02C9/28 ; F02C9/26 ; F02C7/232 ; F02C3/10

Abstract:
Systems and methods for regulating fuel flow to a gas turbine engine are provided. Power for the engine is governed using a control structure having an inner control loop and an outer control loop, the outer control loop comprising a feedback controller that outputs a feedback command based on a power error determined as a function of a shaft horsepower, the feedback command used to determine a gas generator speed error, the gas generator speed error used by the inner control loop for outputting a fuel flow command. The shaft horsepower is determined from a torque measurement of the engine using a torque pressure transducer. When a momentary loss of the torque measurement from the torque pressure transducer is detected, power fluctuations due to the loss of torque measurement are limited by maintaining the feedback command from the feedback controller constant during the momentary loss of torque measurement.
Public/Granted literature
- US20180030904A1 SYSTEM AND METHOD FOR CONTROL OF GAS TURBINE ENGINE Public/Granted day:2018-02-01
Information query
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