高超声速飞行器抗干扰跟踪鲁棒控制方法  

Robust anti-disturbance tracking control method for hypersonic flight vehicles

作　　者：杭斌 任锦瑞 许斌[1] HANG Bin;REN Jinrui;XU Bin(School of Automation,Northwestern Polytechnical University,Xi’an 710072,China;School of Automation,Xi’an University of Posts&Telecommunications,Xi’an 710121,China)

机构地区：[1]西北工业大学自动化学院,陕西西安710072 [2]西安邮电大学自动化学院,陕西西安710121

出　　处：《飞行力学》2023年第4期67-73,87,共8页Flight Dynamics

基　　金：国家自然科学基金资助(61933010,62103335)。

摘　　要：针对高超声速飞行器(HFVs)飞行过程中存在多源干扰、强非线性问题,提出一种基于加性状态分解(ASD)理论的抗干扰复合控制方法。首先,利用ASD理论将原HFVs非线性跟踪控制问题分解为线性主系统跟踪控制和非线性辅系统镇定控制问题;考虑主系统外部扰动对飞行器性能带来的影响,构造干扰观测器(DO)对未知扰动进行观测和估计,并进一步将干扰估计与PI控制器相结合设计抗干扰复合控制器;辅系统的任务是解决非线性系统镇定控制问题,利用反馈线性化方法将复杂的非线性问题转换成线性问题。然后,将主系统和辅系统控制器进行综合得到原系统控制器。仿真结果证明所提控制方法具有一定的抗干扰能力和良好的鲁棒性。To solve problems of multi-source disturbances and strong nonlinearity during the flight of HFVs,an anti-disturbance composite control method based on the additive state decomposition(ASD)theory is proposed.Firstly,the ASD theory is used to decompose the original control problem of HFVs nonlinearity tracking into the tracking control problem of linear primary system and the stabilizing con-trol problem of nonlinear secondary system.Considering the influence of the external disturbance of the main system on the performance of the aircraft,the disturbance observer(DO)is constructed to observe and estimate the unknown disturbance,and the anti-interference composite controller is designed com-bining with the disturbance estimation and PI controller.The task of the secondary system is to solve control problems of nonlinear system,and to convert the complex nonlinear problem into the linear problem by using the feedback linearization method.Finally,the primary system and the secondary sys-tem controllers are synthesized to obtain the original system controller.The simulation test results prove that the proposed control method has certain anti-disturbance ability and good robustness.

关 键 词：高超声速飞行器 加性状态分解 干扰观测器 抗干扰 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计] V448