基于LESO的舰载机纵向着舰动态面抗饱和控制技术  

LESO-Based Longitudinal Landing Dynamic Surface Anti-Saturation Control Technology for Carrier Aircraft

作　　者：周思羽 杨文奇 卢建华 宋立廷 ZHOU Si-yu;YANG Wen-qi;LU Jian-hua;SONG Li-ting(Qingdao Campus,Naval Aviation University,Qingdao 266000,China;College of Basic Sciences for Aviation,Naval Aviation University,Yantai 264001,China)

机构地区：[1]海军航空大学青岛校区,山东青岛266000 [2]海军航空大学航空基础学院,山东烟台264001

出　　处：《测控技术》2023年第3期124-133,共10页Measurement & Control Technology

基　　金：山东省高等学校“青创科技支持计划”(2021KJ061)。

摘　　要：对具有输入饱和、舰尾流扰动以及强耦合性的舰载机纵向自动着舰系统(ACLS)模型,设计了一种基于线性扩张状态观测器(LESO)的高阶系统动态面控制(DSC)策略。在传统DSC的基础上,引入LESO对系统内外扰动进行实时观测和补偿,并在LESO框架内设计了一种基于误差补偿的抗饱和方法,有效抑制了输入饱和对系统性能的影响。采用线性微分跟踪器(LTD)代替传统动态面方法中的一阶低通滤波器,避免了反步法“微分爆炸”的同时输出了所需的微分信号。根据Lyapunov理论进行了稳定性分析,并在MATLAB/Simulink环境下通过仿真验证了所设计方法的有效性。A linear extended state observer(LESO) based dynamic surface control(DSC) strategy is designed for the longitudinal automatic carrier landing system(ACLS) model with input saturation,wake turbulence,and strong coupling.Based on the traditional DSC,LESO is introduced to observe and compensate the disturbances inside and outside the system in real time,and an anti-saturation method based on error compensation is designed within the framework of LESO to effectively suppress the impact of input saturation on the system performance.The linear tracking differentiator(LTD) is used instead of the first-order low-pass filter in the traditional dynamic surface control method,which avoids the “differential explosion” of the backstepping method and outputs the differential signal required.The stability analysis is carried out according to Lyapunov theory,and the effectiveness of the designed method is verified by simulation in MATLAB/Simulink environment.

关 键 词：舰载机 自动着舰 饱和抑制 动态面控制 扩张状态观测器 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计]