scholarly journals Actuator Fault estimation with pole placement constraints for Takagi-Sugeno fuzzy systems with interval time varying delay: An LMI approach

2011 ◽  
Author(s):  
Hamdi Gassara ◽  
Ahmed El Hajjaji ◽  
Mohamed Chaabane
Keyword(s):  
Fuzzy Systems ◽  
Pole Placement ◽  
Fault Estimation ◽  
Time Varying ◽  
Actuator Fault ◽  
Lmi Approach ◽  
Interval Time ◽  
Time Varying Delay ◽  
Takagi Sugeno ◽  
Varying Delay

scholarly journals Robust dynamic output feedback fault-tolerant control for Takagi-Sugeno fuzzy systems with interval time-varying delay via improved delay partitioning approach

2016 ◽  
Vol 14 (1) ◽  
pp. 986-1006 ◽  
Author(s):  
Chao Sun ◽  
Fuli Wang ◽  
Xiqin He
Keyword(s):  
Output Feedback ◽  
Fuzzy Systems ◽  
Fault Tolerant ◽  
Fault Estimation ◽  
Time Varying ◽  
Interval Time ◽  
Time Varying Delay ◽  
Takagi Sugeno ◽  
Delay Partitioning ◽  
Varying Delay

AbstractThis paper addresses the problem of robust fault-tolerant control design scheme for a class of Takagi-Sugeno fuzzy systems subject to interval time-varying delay and external disturbances. First, by using improved delay partitioning approach, a novel n-steps iterative learning fault estimation observer under H∞ constraint is constructed to achieve estimation of actuator fault. Then, based on the online estimation information, a fuzzy dynamic output feedback fault-tolerant controller considered interval time delay is designed to compensate for the impact of actuator faults, while guaranteing that the closed-loop system is asymptotically stable with the prescribed H∞ performance. Moreover, all the obtained less conservative sufficient conditions for the existence of fault estimation observer and fault-tolerant controller are formulated in terms of linear matrix inequalities. Finally, the numerical examples and simulation results are presented to show the effectiveness and merits of the proposed methods.

Stability criteria for uncertain Takagi–Sugeno fuzzy systems with interval time-varying delay

2007 ◽  
Vol 1 (3) ◽  
pp. 764-769 ◽  
Author(s):  
C.H. Lien ◽  
Y.J. Chung ◽  
K.W. Yu ◽  
W.D. Chen ◽  
Z.L. Wan
Keyword(s):  
Fuzzy Systems ◽  
Time Varying ◽  
Stability Criteria ◽  
Interval Time ◽  
Time Varying Delay ◽  
Takagi Sugeno ◽  
Varying Delay
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