Adaptive Fuzzy Observer Design for a Class of Switched Nonlinear Systems With Actuator and Sensor Faults

作者：Fu, Shasha; Qiu, Jianbin^*; Chen, Liheng; Mou, Shaoshuai

来源：IEEE Transactions on Fuzzy Systems, 2018, 26(6): 3730-3742.

DOI：10.1109/TFUZZ.2018.2848253

• Adaptive observer
• fault estimation (FE)
• fuzzy logic systems (FLSs)
• switched nonlinear systems

In this paper, an adaptive fault estimation approach is proposed for a class of switched nonlinear systems. The considered system is assumed to possess unknown nonlinearities, unmeasured states, and simultaneous sensor and actuator faults. Fuzzy logic systems are applied to approximate the unknown nonlinear terms. Two new adaptive fuzzy observers are designed where the sensor and actuator faults can be estimated separately. On the basis of average dwell time approach and Lyapunov stability theory, the resulting error system is proven to be bounded stable with designed parameters. Finally, a simulation example is presented to illustrate the effectiveness of the designed observers.

• 出版日期2018-12
• 单位哈尔滨工业大学; 机器人技术与系统国家重点实验室