摘要
考虑输出误差约束、不确定和执行器故障影响下的高超声速飞行器的跟踪控制问题,提出自适应容错反步控制策略。首先,设计指数型预设时间性能函数,保证输出误差在预设时间内满足约束要求。其次,通过自适应律解决不确定项和升降舵故障。利用跟踪微分器解决“计算爆炸”问题,避免反步控制中对虚拟控制输入的高阶求导。最后,基于Lyapunov理论证明闭环系统的稳定性,并通过仿真验证所提控制策略的有效性。
An adaptive fault-tolerant backstepping control strategy is proposed for the tracking control problem of hypersonic vehicle under output error constraints uncertainties and actuator faults.Firstly an exponential preset time performance function is designed to ensure that the output error meets the constraint requirements within the preset time.Secondly the uncertain term and elevator fault are solved by adaptive law.The tracking differentiator is used to solve the"explosion of complexity"problem and avoid the higher-order derivation of the virtual control input in backstepping control.Finally the stability of the closed-loop system is proved based on Lyapunov theory and the effectiveness of the control strategy is verified by simulation.
作者
杜雨欣
王芳
温林枝
DU Yuxin;WANG Fang;WEN Linzhi(School of Science Yanshan University Qinhuangdao,Hebei,066004 China)
出处
《燕山大学学报》
北大核心
2024年第1期62-76,共15页
Journal of Yanshan University
基金
河北省自然科学基金资助项目(F2020203105)
国家自然科学基金资助项目(62073234)
河北省高等学校科学技术研究项目(ZD2022012)。
关键词
高超声速飞行器
输出误差约束
故障
预设时间性能函数
跟踪微分器
反步控制
hypersonic vehicle
output error constraint
fault
preset time performance function
tracking differentiator
backstepping control
