Research and Flight Test on e-σ-modification Law Based Adaptive Controller

摘要

The robust model reference adaptive control (MRAC) scheme for linear system's relative degree equaling to or more than one are designed respectively. The Lyapunov desgining process proves that the output signals and control parameters of the proposed controller updated by e-sigma-modification law are uniformly bounded existing perturbation and unmodeled dynamics. The policy of choosing gains for minishing error boundaries of system output and control parameter governed by e-modification law is also proposed. Finally, the damage tolerant flight test was conducted through cascading to guidance law for enroute flight. The flight test shows that the controller could not only quickly stabilize the aircraft with one side of wing damaged largely, but also continue to recover the performance and track waypoints in allowable deflection of control surfaces. The effectiveness and practicability of the algorithm are verified.