分层变结构可重构飞行控制系统设计

Hierarchical Variable Structure Reconfigurable Flight Control System

利用奇异摄动理论和变结构控制理论 ,针对飞行状态的时间尺度差异 ,构造了可进行角速率重构的内环变结构重构控制系统以及可进行角度重构的外环变结构重构控制系统 ;同时考虑操纵面偏转角度饱和及偏转速率饱和对系统的影响 ,设计出一种变结构可重构飞行控制系统。仿真结果表明 ,该方法具有较强的鲁棒性和较高的重构精度。

Singular perturbation and variable structure control methods are applied to design the reconfigurable flight control system. According as the obvious difference in time scales of flight state variables, the reconfigurable flight control strategies are developed. Angular rate commands are reconfigured in an inner loop variable structure reconfigurable control system, and angles are reconfigured in an outer loop. The limitations on surface's deflection and deflection rate are addressed to develop the variable structure reconfigurable flight control system. The results of simulation indicate that this method achieves a robust, high accuracy reconfiguring performance.