Adaptive actuator failure compensation and disturbance rejection scheme for spacecraft

作者：Yao, Xuelian; Tao, Gang^*; Qi, Ruiyun

来源：Journal of Systems Engineering and Electronics, 2014, 25(4): 648-659.

DOI：10.1109/JSEE.2014.00075

• actuator failure compensation
• adaptive control
• failure pattern
• disturbance estimation
• spacecraft
• stability and tracking

An adaptive actuator failure compensation scheme is proposed for attitude tracking control of spacecraft with unknown disturbances and uncertain actuator failures. A new feature of this adaptive control scheme is the adaptation of the failure pattern parameter estimates, as well as the failure signal parameter estimates, for direct adaptive actuator failure compensation. Based on an adaptive backstepping control design, the estimates of the disturbance parameters are used to solve the disturbance rejection problem. The unknown disturbances are compensated completely with the stability of the whole closed-loop system. The scheme is not only able to accommodate uncertain actuator failures, but also robust against unknown external disturbances. Simulation results verify the desired adaptive actuator failure compensation performance.

• 出版日期2014-8
• 单位南京航空航天大学