A Delay-Dependent Approach to Robust Fast Adaptive Fault Estimation Design for Uncertain Neutral Systems with Time-Varying Interval Delay

2016 ◽  
Vol 19 (2) ◽  
pp. 543-553 ◽  
Author(s):  
Fuqiang You ◽  
Hui Li ◽  
Fuli Wang ◽  
Shouping Guan
Keyword(s):  
Fault Estimation ◽  
Time Varying ◽  
Neutral Systems ◽  
Interval Delay ◽  
Delay Dependent

scholarly journals Robust Fault Estimation for a Class of T-S Fuzzy Singular Systems with Time-Varying Delay via Improved Delay Partitioning Approach

2016 ◽  
Vol 2016 ◽  
pp. 1-15 ◽  
Author(s):  
Chao Sun ◽  
FuLi Wang ◽  
XiQin He
Keyword(s):  
Singular Systems ◽  
Singular System ◽  
Fault Estimation ◽  
Linear Matrix ◽  
Time Varying ◽  
Time Varying Delay ◽  
System A ◽  
Delay Dependent ◽  
Takagi Sugeno ◽  
Varying Delay

The problem of delay-dependent robust fault estimation for a class of Takagi-Sugeno (T-S) fuzzy singular systems is investigated. By decomposing the delay interval into two unequal subintervals and with a new and tighter integral inequality transformation, an improved delay-dependent stability criterion is given in terms of linear matrix inequalities (LMIs) to guarantee that the fuzzy singular system with time-varying delay is regular, impulse-free, and stable firstly. Then, based on this criterion, by considering the system fault as an auxiliary disturbance vector and constructing an appropriate fuzzy augmented system, a fault estimation observer is designed to ensure that the error dynamic system is regular, impulse-free, and robustly stable with a prescribedH∞performance satisfied for all actuator and sensor faults simultaneously, and the obtained fault estimates can practically better depict the size and shape of the faults. Finally, numerical examples are given to show the effectiveness of the proposed approach.

H-Infinite Output Tracking Control for Neutral Systems with Time-Varying Delay and Nonlinear Perturbations: A Less Conservative Result

2011 ◽  
Vol 48-49 ◽  
pp. 579-583 ◽  
Author(s):  
Guang Xin Zhong ◽  
Zhao Di Xu ◽  
Xiao Yi Li
Keyword(s):  
Tracking Control ◽  
Time Varying ◽  
Nonlinear Perturbations ◽  
Neutral Systems ◽  
Time Varying Delay ◽  
Output Tracking ◽  
Output Tracking Control ◽  
Conservative Result ◽  
Delay Dependent ◽  
Varying Delay

The problem of H-Infinite output tracking control for liner neutral systems with time-varying and nonlinear perturbations is investigated. The purpose of this paper is to ontain a delay-dependent sufficient condition to guarantee H-Infinite output tracking performance and a less conservative result. A liner matrix inequality (LMI) approach is adopted to solve the problem.

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