高超声速飞行器预设性能抗饱和容错控制方法
A prescribed performance anti-saturation fault-tolerant control method for hypersonic flight vehicle
李海燕 1吴佳栋 1董海迪 1李静1
作者信息
- 1. 海军工程大学兵器工程学院,武汉 430033
- 折叠
摘要
针对高超声速飞行器飞行中所面临的扰动与不确定性、执行机构部分失效故障以及输入饱和问题,提出了一种预设性能抗饱和容错控制方法.在控制器设计过程中,首先利用扩张状态观测器估计扰动与不确定性,并在控制器中进行补偿;然后,设计了一种新型有限时间收敛的预设性能控制方案,并与自适应控制相结合解决执行机构部分失效问题;最后,通过加入辅助系统解决了输入饱和问题.仿真结果表明:所设计的控制方案可以有效降低故障影响,提高跟踪误差收敛速度,限制输入量变化范围.
Abstract
In order to solve the problems of disturbance and uncertainty,partial failure of actuator and input saturation in flight of hypersonic flight vehicle,a prescribed performance control anti-saturation and fault-tolerant control method was proposed.In the process of controller design,the extended state observer was used to estimate the disturbance and uncertainty,and the compensation was carried out in the controller.Secondly,a new prescribed performance control scheme with finite-time convergence was designed,which was combined with adaptive control to solve the problem of partial actuator fai-lure.Finally,the input saturation problem was solved by adding an auxiliary system.The simulation results show that the designed control scheme can effectively reduce the fault influence,improve the convergence speed of tracking error,and limit the variation range of input.
关键词
高超声速飞行器/预设性能控制/抗饱和控制/容错控制Key words
hypersonic flight vehicle/prescribe performance control/anti-saturation control/fault-tolerant control引用本文复制引用
基金项目
国家自然科学基金资助项目(62101579)
出版年
2024
NETL
NSTL
万方数据