Flight control systems using passivity-based control - Disturbance rejection and robustness analysis

摘要

We present the disturbance rejection and robustness analysis of our proposed passivity-based control for flight control systems. ^The passivity-based control technique is based on the aircraft energy state. ^The aircraft is considered as a class of Lagrangian systems and the dynamics are presented using the Euler-Lagrange equation of motion. ^This allows for the modification of the system's energy to achieve both tracking and stabilization. ^The technique allows for automatic generation of Lyapunov-like functions for proving closed-loop stability. ^Our proposed technique is illustrated for the longitudinal control of a twin-engined aircraft. ^The flight trajectory and simulation results are given. ^Disturbance rejection and robustness analysis of the closed-loop system is performed by simulations under several flight conditions. ^(Author)