高超声速飞行器超螺旋滑模自适应控制  

Super-Twisting Sliding Mode Adaptive Control of Hypersonic Vehicle

作　　者：文成馀 江驹[1] 余朝军 朱平[1] WEN Chengyu;JIANG Ju;YU Chaojun;ZHU Ping(Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学

出　　处：《电光与控制》2020年第2期1-5,共5页Electronics Optics & Control

基　　金：国家自然科学基金(61673209);江苏省研究生科研与实践创新计划项目(KYCX18_0303)

摘　　要：针对具有强耦合性、严重非线性等特性的高超声速飞行器控制问题,提出了一种改进的自适应二阶滑模控制方法。首先,在高超声速飞行器纵向模型中加入不确定因素,建立了具有参数不确定性、模型不确定性以及干扰的控制模型;其次,在所建立模型的基础上,利用类二次型Lyapunov函数设计了基于super-twisting算法的二阶滑模自适应控制器;最后,仿真结果表明,对具有未知上界不确定性的系统,该方法设计的控制器较普通二阶滑模控制器,有更好的跟踪效果以及鲁棒性。Aiming at the problem of hypersonic vehicle control with strong coupling and severe nonlinearity an improved adaptive second-order sliding mode control method is proposed.Firstly uncertain factors are added to the longitudinal model of hypersonic vehicle and a control model with parameter uncertainties model uncertainties and interferences is established.Secondly based on the established model an adaptive second-order sliding mode controller based on super-twisting algorithm is designed by using quadratic Lyapunov function.Finally the simulation results show that:Compared with the common second-order sliding mode controller the controller designed in this method has better tracking effect and robustness for systems with unknown upper bound uncertainty.

关 键 词：高超声速飞行器 super-twisting 自适应控制 二阶滑模 不确定性 

分 类 号：V249[航空宇航科学与技术—飞行器设计]