高超声速飞行器姿态的自适应模糊滑模控制  

Adaptive Fuzzy Sliding Mode Control for Hypersonic Vehicle Attitude

作　　者：管萍[1] 和志伟[1] GUAN Ping;HE Zhi-wei(School of Automation,Beijing Information Science and Technology University,Beijing 100192,China)

机构地区：[1]北京信息科技大学自动化学院

出　　处：《控制工程》2018年第7期1139-1144,共6页Control Engineering of China

基　　金：国家自然科学基金资助项目(11472058)

摘　　要：高超声速飞行器是一种具有高度非线性、含较大不确定性的复杂系统,将自适应模糊滑模控制应用于高超声速飞行器纵向通道的姿态控制中,给出了详尽的实现方法。将系统分解为快慢内外环,针对高超声速飞行器运动学和动力学方程分别设计PD控制律和滑模控制律,利用自适应模糊控制逼近滑模控制中的等效控制,并推导了规则参数调整的自适应律。最后,通过一个模糊控制器光滑滑模控制中的不连续控制量。仿真结果表明,在气动参数大范围摄动的情况下,高超声速飞行器能够较好地跟踪期望攻角,并且具有较强的鲁棒性。Hypersonic vehicle is a complex system with highly nonlinear and a large uncertainty. The adaptive fuzzy sliding mode control is applied to the attitude control of the hypersonic vehicle longitudinal channel. The detailed design procedure of the fuzzy sliding mode control system is presented. Dividing the system into inner and outer cycle, the PD control law and sliding mode control law are designed for the longitudinal channel of hypersonic vehicle. The adaptive fuzzy control is utilized to approach the equivalent control of sliding mode control and the adaptive law is derived. Finally, in order to attenuate the chattering phenomena, the other fuzzy controller is employed to smooth the discontinuous control. Simulation results show that the hypersonic vehicle can track the desired angle of attack very well, and has strong robustness in the case of a wide range of aerodynamic parameters perturbation.

关 键 词：高超声速飞行器 自适应模糊控制 滑模控制 姿态控制 

分 类 号：V249.122.2[航空宇航科学与技术—飞行器设计]