Adaptive tracking of nonlinear systems with actuator dead-zone fault based-on observer

作者：Luo Xiao Yuan^*; Wu Xiao Jing; Hua Chang Chun; Liu Hui Xue; Guan Xin Ping

来源：Systems Engineering and Electronics, 2009, 31(7): 1699-1704.

• Actuator fault
• Adaptive controllers
• Adaptive tracking
• Adaptive tracking control
• Dead-zone
• Dead-zone models
• Extended observer
• Fault-based
• Non-symmetric dead-zone
• Nonlinear terms

An adaptive tracking control problem is investigated for a class of nonlinear systems with non-symmetric actuator dead-zone fault. Based on extended observers, a new adaptive tracking control method is proposed. The restriction that all states of the system can be fully measured is canceled. On conditions that the dead zone model parameters and the bound of the uncertain nonlinear term are all unknown, the proposed adaptive controller can eliminate the effect of actuator dead-zone faults well and ensure bounded-errors tracking. Finally, the results of simulation show the effectiveness of the proposed method.

• 出版日期2009
• 单位燕山大学