高超声速飞行器轨迹跟踪的反步滑模控制

Trajectory Tracking Control Using Backstepping Sliding Methodfor a Hypersonic Flight Vehicle[JZ)][HS)]

摘要:

针对高超声速飞行器轨迹跟踪控制问题,基于纵向动力学的输入/输出线性化模型,设计了一种基于反步法与滑模控制相结合的反步滑模跟踪控制器；这种控制器对系统匹配不确定性和非匹配不确定性都具有较强的鲁棒性,跟踪收敛快速性良好；对反步滑模跟踪控制器和一般滑模跟踪控制器进行了控制参数仿真优化,对比研究了速度跟踪、高度跟踪、速度高度同时跟踪和正弦速度跟踪条件下两种控制器的快速性和鲁棒性,证实了文章方法的有效性。

Abstract:

For a hypersonic flight vehicle’s trajectory tracking control problem, backstepping sliding tracking controller using backstepping approach and sliding mode control theory together is designed based on longitudinal input/output linearization model. This kind of controller has strong robustness whether encountering matched or unmatched uncertainties and shows quicker rapidity of convergence. The research optimizes and gets the controllers parameters of backstepping sliding controller and general sliding mode controller, then comparatively studies the speedability and robustness of the two controllers with velocity tracking instruction, altitude tracking instruction, velocity and altitude tracking instruction and sine-wave velocity tracking instruction. The simulation results demonstrate the method in this paper is reasonable and efficient.