采用TLC方法的超机动飞行控制系统设计

基于轨迹线性化控制(Trajectory linearization control,TLC)方法,研究了超机动飞机飞行控制系统的设计问题。首先简要介绍了TLC方法的设计思想;然后根据奇异摄动理论,将超机动飞行控制系统分成快慢两个回路,并为其分别设计了轨迹线性化控制器;最后分别用所设计的控制器和已有的动态逆控制器对某型歼击机进行了赫布斯特机动仿真。仿真结果和对比分析表明,所设计的TLC控制器是有效的,且比动态逆控制器具有更好的控制跟踪性能。

Super-Maneuverable Flight Control System Based on TLC Method

A control law based on trajectory linearization control(TLC) method is designed and implemented.Firstly,the design principle of TLC is introduced.Then based on the singular perturbation theory,the super-maneuverable flight control system is divided into two loops: fast loop.and slow loop,and TLC controllers are designed.Finally,Herbst maneuver is simulated for super-maneuverable aircrafts using a TLC controller.For comparison,under the same condition,the herbst maneuver is also simulated using a dynamic-inversion controller.Simulation results show that the TLC controller is effective and produces more accurate control of the attack-angle,sideslip angle and the rate of the bank angle about the velocity vector,and smaller control deflections compared with the dynamic-inversion controller.