Title of Paper:A New Robust Tracking Control Design for Turbofan Engines: H-infinity/Leitmann Approach

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Affiliation of Author(s):能源与动力学院

Journal:APPLIED SCIENCES-BASEL

Key Words:uncertain dynamic system turbofan H-infinity/Leitmann control uniform tracking boundedness uniform ultimate tracking boundedness

Abstract:In this paper, a H/Leitmann approach to the robust tracking control design is presented for an uncertain dynamic system. This new method is developed in the following two steps. Firstly, a tracking dynamic system with simultaneous consideration of parameter uncertainty and noise is modeled based on a linear system and a reference model. Accordingly, a "nominal system" from the tracking system is defined and controlled by a H control to obtain the asymptotic stability and noise resistance. Secondly, by making use of a Lyapunov function and the norm boundedness, a new robust control with the "Leitmann approach" is designed to cope with the uncertainty. The two controls collaborate with each other to achieve "uniform tracking boundedness"and "uniform ultimate tracking boundedness". The new approach is then applied to an aircraft turbofan control design, and the numerical simulation results show the prescribed performances of the closed-loop system and the advantage of the developed approach.

ISSN No.:2076-3417

Translation or Not:no

Date of Publication:2017-05-01

Co-author:Zhang, Kaiwen,Chen, Ye-Hwa,Huang Jinquan

Correspondence Author:Pan Muxuan