针对一类单输入单输出非线性系统提出了自适应模糊故障检测及将backstepping技术与模糊控制相结合设计容错控制器的方法。首先,应用模糊逻辑系统设计故障估计器,在线估计系统故障向量,实现故障检测:在此基础上,引入补偿控制器,消除故障对系统运行的影响,从而实现容错控制。通过理论分析证明了跟踪误差收敛到一个小的残差集内。仿真结果表明了该方法的有效性。
The adaptive fuzzy fault diagnosis was proposed against a single input and output nonlinear system. In addition, fault tolerant control algorithms combined backstepping with adaptive fuzzy control for a class of SISO unknown nonlinear systems. At first, the design of fuzzy adaptive fault observer was performed using fuzzy logic systems. Using the estimated fault vector to have completed fault diagnosis. Based on this, a fault tolerant controller was designed to compensate the effects of faults By theoretical analysis, the tracking error convergences reached a residual set, Simulation result expatiated the effectiveness of this approach.