Robust fault estimation and accommodation for discrete-time Takagi-Sugeno fuzzy systems

摘要：

　　This paper proposes a new integrated observer-based fault estimation and accommodation strategy for discrete-time Takagi-Sugeno(T-S)fuzzy systems subject to actuator faults.Specifically,a robust observer is designed to simultaneously estimate the state and the actuator fault.Using the fault estimation,a robust fault tolerant controller based on the concept of input-to-state stability(ISS)is proposed to achieve fault accommodation.In this paper,all the design conditions are formulated in terms of linear matrix inequalities(LMIs)which can be solved efficiently.Finally,a numerical example is provided to illustrate the effectiveness of the proposed method.

关键词： Fault estimation Fault accommodation Discrete-time Takagi-Sugeno (T-S) fuzzy systems Input-to-state stability (ISS)

作者: HAN Weixin ZHANG Yu WANG Zhenhua SHEN Yi

作者单位: Harbin Institute of Technology,Harbin 150001,China

会议类型: 国际会议

会议名称: The 33th Chinese Control Conference第33届中国控制会议

会议地点: 南京

会议语种:英文

页码: 3076-3081

在线出版日期: 2014-07-28（万方平台首次上网日期，不代表论文的发表时间）