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Decoupled controller for mixed exhausts turbofan engine

Published online by Cambridge University Press:  03 February 2016

T. R. Nada*
Affiliation:
National Authority of Remote Sensing and Space Sciences, Cairo, Egypt

Abstract

This paper points out the capabilities of fully decoupled fuzzy controller which introduces simple design approach to deal with the coupling effects in controlling two spools, mixed exhausts turbofan engines. The decoupling is performed through proper selection of input parameters to the controller. Digital nonlinear engine/control system simulation is used to construct the fuzzy rules depending on simple logic. The performance of this controller is compared with that of an optimal controller representing efficient classical and conventional techniques. The decoupled fuzzy control system produces favorable transient strategies that other conventional controllers can not attempt due to its inherent proportionality characteristics. It displays improvements in surge margin for both fan and compressor, and temperature margin with almost similar response time during acceleration. Also, the proposed controller has the capabilities to increase the response speed during deceleration independently from acceleration transient.

Type
Research Article
Copyright
Copyright © Royal Aeronautical Society 2006 

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