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Appl. Sci. 2017, 7(5), 439; doi:10.3390/app7050439

A New Robust Tracking Control Design for Turbofan Engines: H/Leitmann Approach

1
College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu, China
2
The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30324, USA
*
Author to whom correspondence should be addressed.
Academic Editors: Antonio Ficarella and Chien-Hung Liu
Received: 28 December 2016 / Revised: 10 April 2017 / Accepted: 19 April 2017 / Published: 27 April 2017
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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 asymptotical 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. View Full-Text
Keywords: uncertain dynamic system; turbofan; H/Leitmann control; uniform tracking boundedness; uniform ultimate tracking boundedness uncertain dynamic system; turbofan; H/Leitmann control; uniform tracking boundedness; uniform ultimate tracking boundedness
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Pan, M.; Zhang, K.; Chen, Y.-H.; Huang, J. A New Robust Tracking Control Design for Turbofan Engines: H/Leitmann Approach. Appl. Sci. 2017, 7, 439.

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