Nonlinear Hierarchy-Structured Predictive Control System Design for Hypersonic Flight Vehicle

摘要

A hierarchy-structured predictive control(HSPC) method is proposed according to the feature that hypersonic flight vehicle(HFV) model is highly nonlinear, fast-variability, coupling, and with parameters of great uncertainties. This method contains two parts, which are inner-loop nonlinear generable predictive control (NGPC) system and outer-loop NGPC system, respectively. These two NGPC systems are both designed by closed-form optimal generable predictive control (GPC) method. The HSPC system can ensure the longitudinal flight stability under the influence of uncertain parameters. Simulation studies demonstrate that the proposed control method is feasible for hypersonic flight vehicle.