电光与控制, 2020, 27 (5): 5, 网络出版: 2020-12-25
高超声速飞行器双幂次滑模反演控制
A Backstepping Control Based Double-Power Sliding Mode Controller for Hypersonic Vehicle
高超声速飞行器 双幂次趋近律 滑模控制 反演控制 hypersonic vehicle double-power approaching law sliding mode control backstepping control
摘要
针对高超声速飞行器存在参数不确定性的问题,设计了双幂次滑模反演控制器。首先,将高超声速飞行器动力学模型表示为严反馈形式,在反演设计的过程中采用动态面控制的方法避免微分膨胀问题;其次,在反演控制的基础上结合了滑模控制方法,并在滑模控制中采用双幂次趋近律以消除抖振的影响。基于Lyapunov稳定性原理证明了方法的稳定性。仿真结果表明,在考虑较大参数不确定性的情况下,基于反演控制的双幂次滑模控制器实现了高度和速度的稳定跟踪。
Abstract
Considering the problem of parameter uncertainty existed in hypersonic vehicles, a double-power sliding mode controller based on backstepping control is designed. Firstly, the dynamics model of the hypersonic vehicle is translated to the strict feedback form, and the dynamic surface control method is adopted in backstepping design to avoid the problem of explosion of differentiation terms. Secondly, the sliding mode control method is integrated on the basis of the backstepping control, and double-power approaching law is used in the sliding mode control to eliminate the chattering. The stability of the method is proved by the Lyapunov stability principle. The simulation results show that the double-power sliding mode controller based on backstepping control can realize stable tracking of altitude and velocity in the presence of uncertain parameters.
黄书童, 江驹. 高超声速飞行器双幂次滑模反演控制[J]. 电光与控制, 2020, 27(5): 5. HUANG Shutong1, 2 JIANG Ju. A Backstepping Control Based Double-Power Sliding Mode Controller for Hypersonic Vehicle[J]. Electronics Optics & Control, 2020, 27(5): 5.