Dynamic modeling of a turboshaft engine driving a variable pitch propeller: A decentralized approach

Mehrdad Pakmehr, Nathan Fitzgerald, James D. Paduano, Eric Feron, Alireza Behbahani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

In this paper, a nonlinear performance based model for a twin spool turboshaft engine which drives a variable pitch propeller, is developed. Then a piecewise linear representa- tion of the model, which can be used for control of the turboshaft engine for large throttle commands (i.e. for the entire ight envelope), is developed. Open loop simulation results of SPT5 engine dynamics, using piecewise linear modeling approach, are presented. Fi- nally, a decentralized piecewise representation of the model suitable for distributed and decentralized engine control, is developed. Simulation results for decentralized piecewise linear control of the JetCat SPT5 turboshaft engine also are presented. Fuel ow is the control input for the engine core subsystem, and prop pitch angle is the control input for the engine fan/prop subsystem. © 2011 by the American Institute of Aeronautics and Astronautics, Inc.
Original languageEnglish (US)
Title of host publication47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2011
PublisherAmerican Institute of Aeronautics and Astronautics Inc.custserv@aiaa.org
ISBN (Print)9781600869495
DOIs
StatePublished - Jan 1 2011
Externally publishedYes

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