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再入飞行器仅使用两个体襟翼对姿态进行控制将导致横侧向运动中包含不稳定内动态.针对这一欠驱动问题,提出基于输出重定义的动态逆控制方法.采用输出重定义技术使零动态局部稳定,通过极点配置提高零动态的鲁棒性,对重定义输出系统进行反馈线性化从而设计动态逆控制器.仿真结果验证了该方法能确保零动态的稳定性,并显示出在镇定侧滑角的同时对攻角指令和倾侧角指令良好的跟踪性能,通过与反推力控制系统(RCS,Reaction Control System)单独控制的结果进行比较,表明该控制方法仅依靠气动舵面就能实现姿态的稳定控制,既节省了燃料,又减小了飞行器的结构复杂度,并且增大了飞行器的有效载荷.
Re-entry vehicle using only two body flaps to control the attitude will result in lateral dynamic lateral instability. To solve this under-driven problem, a dynamic inverse control method based on output redefinition is proposed. The output redefinition technique Zero dynamic local stability, through the pole configuration to improve the zero dynamic robustness, re-defined output system feedback linearization to design dynamic inverse controller.The simulation results show that the method can ensure zero dynamic stability, and shows that in the The good tracking performance of the angle of attack command and the roll angle command while stabilizing the side slip angle is compared with the results of the separate control with the RCS (Reaction Control System), which shows that the control method can only rely on the pneumatic control surface Stable control of the attitude can save fuel, reduce the structural complexity of the aircraft and increase the payload of the aircraft.