Sliding Mode Fault Tolerant Attitude Control Scheme for Spacecraft with Actuator Faults
发表时间:2020-03-23 点击次数:
所属单位:自动化学院
发表刊物:Trans. Nanjing Univ. Aero. Astro.
摘要:An active fault tolerant control scheme is investigated for the attitude control systems of spacecraft with external disturbance and actuator faults by using the sliding mode technique. Firstly, the dynamic equations and kinematic equations of spacecraft are given. For the dynamic mode of spacecraft in faulty case, a fault diagnosis component is used for fault detection and estimation by using a nonlinear observer. According to the fault estimation information obtained during the fault diagnosis, the fault tolerant control scheme is developed by adopting the backstepping sliding mode control technique. Meanwhile, the Lyapunov theory is used to analyze the stability of the closed -loop attitude systems. Finally, simulation results for the attitude dynamics models show the feasibility of the proposed fault tolerant scheme. © 2019, Editorial Department of Transactions of NUAA. All right reserved.
ISSN号:1005-1120
是否译文:否
发表时间:2019-02-01
合写作者:Cao, Teng,韩冰
通讯作者:龚华军
发表时间:2019-02-01