摘要
针对参数不确定和输入饱和影响下高超声速飞行器的控制问题,提出自适应障碍反步控制策略。首先,将高超声速飞行器纵向模型改写为面向控制模型,采用自适应方法处理不确定问题;其次,设计辅助系统解决输入饱和问题;再次,利用非对称正切障碍Lyapunov函数,保证所有状态误差满足预先设定的性能要求;在此基础上,在高度子系统的反步控制器设计过程中,采用一阶滤波器避免对虚拟控制输入进行高阶求导,解决“计算爆炸”问题;最后,基于Lyapunov理论证明系统的稳定性,并通过仿真分析验证所提控制策略的有效性。
Aiming at the control problem of hypersonic vehicle with the influence of parameter uncertainty and input saturation,an adaptive barrier backstepping control strategy is proposed.Firstly,the longitudinal model of hypersonic vehicle is rewritten into a control oriented model,and adaptive method is used to deal with uncertain problem.Secondly,auxiliary system is designed to solve the problem of input saturation.Thirdly,asymmetric tangent barrier Lyapunov function is used to ensure that all state errors meet the preset performance requirements.On this basis,for the problem of“explosion of complexity”in backstepping control of altitude subsystem,first-order filter is used to avoid the high order derivation of virtual control input.Finally,the stability of the system is proved based on Lyapunov theory,and the effectiveness of the proposed control strategy is verified by simulation analysis.
作者
王芳
温林枝
阴良魁
WANG Fang;WEN Linzhi;YIN Liangkui(School of Science,Yanshan University,Qinhuangdao,Hebei 066004,China;The Center for Innovation and Development of Chinese Academy of Sciences,Beijing 100190,China)
出处
《燕山大学学报》
CAS
北大核心
2022年第6期529-540,共12页
Journal of Yanshan University
基金
国家自然科学基金资助项目(62073234)
河北省自然科学基金资助项目(F2020203105)
河北省高等学校科学技术研究项目(ZD2022012)。
