Type-2 Fuzzy Disturbance Observer Based Terminal Sliding Mode Control for Spacecraft with Liquid Slosh and Flexible Structure
作者单位：School of Electrical Engineering and Automation Beijing Institute of Control Engineering
会议名称：《第37届中国控制会议》
会议日期：2018年
学科分类：08[工学] 081105[工学-导航、制导与控制] 0811[工学-控制科学与工程]
基 金：supported by National Natural Science Foundation(NNSF)of China under Grant 61573060
关 键 词：type-2 FDO coupled spacecraft liquid slosh flexible structure terminal sliding mode
摘 要：This paper proposed a terminal sliding mode control strategy based on a type-2 fuzzy disturbance observer（FDO）for the spacecraft with liquid slosh and flexible structure（SLF）.The type-2 fuzzy logic system（FLS） has a better behavior than type-1 FLS on handling the ***,the type-2 FDO was adopted to estimate the whole uncertainties which contains the perturbations caused by the liquid fuel slosh and flexible structure,the unknown elements of the model and the external ***,the terminal sliding mode surface was designed to ensure the system stability and ***,the stability of the proposed control scheme was proved based on the Lyapunov stability ***,numerical simulations showed the effectiveness and advantages of the proposed method.