Linear Parameter-Varying Integrated Control Law Design for a Hypersonic Vehicle

doi:10.16183/j.cnki.jsjtu.2022.190

Abstract

Abstract:

A linear parameter-varying (LPV) integrated control law is designed for a hypersonic vehicle to achieve trajectory control based on an altitude-horizontal trajectory control concept. The LPV output-feedback control theory and pole placement techniques are employed to design parameters of the control law within a Mach number envelope. Such a control law performs integrated control for longitudinal and lateral-directional dynamics of the vehicle, free from the scheme of inner and outer control loops of classical flight controls and ensuring robust and optimal control performance in the sense of L₂-induced norm. A mathematical model of the hypersonic vehicle is developed in the Earth-centered-Earth-fixed reference frame. Earth rotation, Earth oblateness, and the second order harmonic perturbations of Earth are considered in the model. Numerical simulations are conducted to examine the performance of the LPV controller. The simulation results indicate that the closed-loop system of the hypersonic vehicle achieves D-stability. The LPV control law achieves a good performance in vehicle trajectory control and has sufficient robustness with respect to perturbations and sensor noise.

Key words: hypersonic vehicle, altitude-horizontal trajectory control concept, integrated flight control, linear matrix inequalities, L₂-induced norm, linear parameter-varying (LPV) control

CLC Number:

YANG Shu, QIAN Yunxiao, YANG Ting. Linear Parameter-Varying Integrated Control Law Design for a Hypersonic Vehicle[J]. Journal of Shanghai Jiao Tong University, 2022, 56(11): 1427-1437.

Figures/Tables 12

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