Design of Variable Structure Fault Tolerant Controller for Nonlinear system

摘要：

A design method of variable structure fault tolerant controller (VSFTC) is presented for a class of systems with unknown structure. It is inserted into a normal system to substitute for the primary controller automatically when faults occur. RBF neural network is used to identify system and fault detection is realized by threshold test approach. The system can run in three modes: common controller is in use when it is normal, otherwise, changes into adaptive neural network controller when step fault occurs or changes into prediction controller when excursion fault occurs. The simulation for continuous stirred tank reactor (CSTR) shows that the approach presented can guarantee systems performance and reduce the effects of faults.

作者: Xisheng Zhan Xianhe Zhang

作者单位: Department of control science and engineering, Hubei Normal University, CO 435002 China

会议类型: 国际会议

会议名称: 2009 IEEE International Conference on Grey System and Intelligent Services(2009 IEEE灰色系统与服务科学国际会议)

会议地点: 南京

会议语种:英文

页码: 1189-1192

在线出版日期: 2009-10-20（万方平台首次上网日期，不代表论文的发表时间）