飞机着陆全面控制的直接反馈线性化设计及仿真

Design of Nonlinear Control System for Aircraft Automatic Landing

应用直接反馈线性化的方法来设计非线性飞机模型[1]自动着陆全面控制系统。首先以飞机原始非线性十二阶微分方程为对象, 利用直接反馈线性化(DFL) 理论对飞机原始非线性方程进行线性化, 将原系统等效于一个六阶的线性系统。然后设计了自动着陆控制系统控制律, 并进行了仿真, 仿真结果满足飞机自动着陆各项指标要求, 表明所设计的自动着陆控制系统具有较强的鲁棒性。

Applying the direct feedback linearization (DFL) method to design the aircraft automatic landing control system model that is overall non-linearization. At first, the original system with twelve-order differential equation is linearized to a six-order system by the DFL theory, and then control laws are designed by classical control method. Finally, system is simulated, and the results can satisfy the requests value of the aircraft landing system and it represents a strong robustness of aircraft landing control system.