南京航空航天大学学报（英文版）2024，Vol.41Issue(2)：233-243,11.DOI:10.16356/j.1005‑1120.2024.02.008
基于干扰观测器的升力式飞行器改进离散滑模控制研究
Improved Discrete-Time Sliding Mode Control for Lift Aircraft Based on Disturbance Observer
陈升泽 1张旋 1袁建平 2郑子轩2
作者信息
- 1. 中国运载火箭技术研究院,北京 100076,中国
- 2. 西北工业大学航天学院,西安 710072,中国
- 折叠
摘要
Abstract
Lift-type aircraft has the characteristics of wide flight airspace,large range of speed changes,strong maneuverability requirements,which makes it a research focus in recent years.Aiming at difficulties of large uncertainty and strong external disturbance in the control model of lift-type aircraft,an improved discrete-time sliding mode variable structure control method based on disturbance observer is presented.Firstly,the discrete control model of the pitch channel is established.Secondly,an improved discrete-time sliding mode variable structure control system based on disturbance estimation is designed and its stability is proved.Thirdly,the influence of parameter selection on control system is analyzed,and the validity of control law is verified.Finally,the comparison with the traditional discrete sliding mode variable structure control system is carried out.The control system's simulation results demonstrate that,compared with the traditional discrete-time sliding mode control system,the proposed control system has higher control accuracy,stronger robustness,faster convergence to zero and less chattering.The proposed control law can effectively improve the flight quality,and can realize stable control for complex mission of lift-type aircraft.关键词
升力式飞行器/干扰观测器/离散滑模控制/鲁棒控制/抖振Key words
lift-type aircraft/disturbance observer/discrete-time sliding mode control/robust control/chattering分类
军事科技引用本文复制引用
陈升泽,张旋,袁建平,郑子轩..基于干扰观测器的升力式飞行器改进离散滑模控制研究[J].南京航空航天大学学报（英文版）,2024,41(2):233-243,11.
