Adaptive control of a jet turboshaft engine driving a variable pitch propeller using multiple models

Narjes Ahmadian, Alireza Khosravi, Pouria Sarhadi

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

In this paper, a multiple model adaptive control (MMAC) method is proposed for a gas turbine engine. The model of a twin spool turbo-shaft engine driving a variable pitch propeller includes various operating points. Variations in fuel flow and propeller pitch inputs produce different operating conditions which force the controller to be adopted rapidly. Important operating points are three idle, cruise and full thrust cases for the entire flight envelope. A multi-input multi-output (MIMO) version of second level adaptation using multiple models is developed. Also, stability analysis using Lyapunov method is presented. The proposed method is compared with two conventional first level adaptation and model reference adaptive control techniques. Simulation results for JetCat SPT5 turbo-shaft engine demonstrate the performance and fidelity of the proposed method.

Original languageEnglish
Pages (from-to)1-12
Number of pages12
JournalMechanical Systems and Signal Processing
Volume92
DOIs
Publication statusPublished - 1 Aug 2017

Keywords

  • Gas turbine engine
  • Multiple model adaptive control
  • Second level adaptation

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