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Mathematical Problems in Engineering
Volume 2015 (2015), Article ID 254975, 15 pages
http://dx.doi.org/10.1155/2015/254975
Research Article

Flight Envelope Protection Control Based on Reference Governor Method in High Angle of Attack Maneuver

Hui Ye,1,2 Mou Chen,1,2 and Qingxian Wu1,2

1Jiangsu Key Laboratory of Internet of Things and Control Technologies, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu 210016, China
2College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu 210016, China

Received 14 September 2014; Revised 17 January 2015; Accepted 21 January 2015

Academic Editor: Giuseppe Rega

Copyright © 2015 Hui Ye et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The reference governor strategy is presented for the flight envelope protection control of the aircraft during high angle of attack maneuvers. Limits of key flight parameters and amplitude saturation of control surfaces are explicitly considered by imposing the output and input constraints on the flight system. Firstly, a nominal flight control scheme is designed using eigenstructure assignment approach. The static and dynamic reference governors are discussed for flight envelope protection control of the aircraft during stability-axis roll maneuver. Then, a new reference governor is presented based on step response model. The performance of these reference governors for flight envelope protection is demonstrated and compared by numerical simulations. Results show that the dynamic reference governor and the proposed step response model based reference governor are valid for the flight envelope protection control and the latter is easier to be realized.