| Citation: | JIA Zhen, DONG Chaoyang, WANG Qinget al. LPV robust tracking control for chain smooth switched morphing aircraft[J]. Journal of Beijing University of Aeronautics and Astronautics, 2017, 43(4): 831-841. doi: 10.13700/j.bh.1001-5965.2016.0246(in Chinese)
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Aimed at morphing aircraft with variable sweepback, this paper studies the issue of modeling and control for a class of morphing aircrafts. Fitting the relationship between aerodynamic parameters and sweepback, we developed linear parameter varying (LPV) model by Jacobian linearization approach. Then a smooth switching system approach with limited switching sequence, chain switching, is modeled, and the sufficient conditions are provided to ensure the finite-time boundedness and robust performance index of the chain smooth switched system. A solving algorithm of stabilizer for smooth switching controller is proposed, and the solving steps for gain control are presented. Based on the generalized system theory, the sufficient conditions for robust stability of the attitude tracking system are proposed. The numerical example simulation results are given to illustrate the validity of the devised approach.
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