摘要
针对存在升降舵面偏转角卡死故障的高超声速飞行器,提出一种基于预测控制的容错控制器设计方法.利用输入输出反馈线性化,对高超声速飞行器纵向模型进行变换;对于速度和高度的高阶导数以及故障项,设计扩张状态观测器在线观测;采用泰勒展开得到预测模型,建立连续预测控制器,分析证明闭环控制系统的稳定性和观测误差的有界性.仿真结果验证了所提方法的有效性.
A fault tolerant controller design method based on predictive control is proposed for the hypersonic vehicle with elevator deflection stuck fault. The longitudinal model of hypersonic vehicle is transformed by using the input-to-output feedback linearization. The extended state observer is designed to estimate the higher derivatives of vehicle and altitude and the faulty functions online. The Talyor expansion is employed to obtain the predictive model, and the continuous predictive controller is constructed. Stability of the closed-loop control system and boundedness of observe errors are proved respectively. The illustrative simulations verify the effectiveness of the proposed method.
出处
《控制与决策》
EI
CSCD
北大核心
2017年第11期2085-2089,共5页
Control and Decision
基金
国家自然科学基金项目(61273092
61271321)
天津市自然科学基金项目(12JCZDJC30300)
天津市过程检测与控制重点实验室开放课题基金项目(TKLPMC-201613)
关键词
高超声速飞行器
预测控制
容错控制
扩张状态观测器
hypersonic vehicle, predictive control, fault tolerant control, extended state observer
