On the stability issues of switched singular time-delay systems with slow switching based on average dwell-time

2012 ◽  
Vol 24 (4) ◽  
pp. 595-624 ◽  
Author(s):  
Iman Zamani ◽  
Masoud Shafiee
Keyword(s):  
Time Delay ◽  
Dwell Time ◽  
Average Dwell Time ◽  
Delay Systems ◽  
Time Delay Systems ◽  
The Stability ◽  
Stability Issues ◽  
Singular Time ◽  
Slow Switching

Robust Regional Eigenvalue-Clustering Analysis for Linear Discrete Singular Time-Delay Systems With Structured Parameter Uncertainties

2006 ◽  
Vol 129 (1) ◽  
pp. 83-90 ◽  
Author(s):  
Shinn-Horng Chen ◽  
Jyh-Horng Chou ◽  
Liang-An Zheng
Keyword(s):  
Time Delay ◽  
Sufficient Conditions ◽  
Delay System ◽  
Delay Systems ◽  
Sufficient Condition ◽  
Time Delay Systems ◽  
Parameter Uncertainties ◽  
Time Delay System ◽  
The Stability ◽  
Singular Time

In this paper, the regional eigenvalue-clustering robustness problem of linear discrete singular time-delay systems with structured (elemental) parameter uncertainties is investigated. Under the assumptions that the linear nominal discrete singular time-delay system is regular and causal, and has all its finite eigenvalues lying inside certain specified regions, two new sufficient conditions are proposed to preserve the assumed properties when the structured parameter uncertainties are added into the linear nominal discrete singular time-delay system. When all the finite eigenvalues are just required to locate inside the unit circle, the proposed criteria will become the stability robustness criteria. For the case of eigenvalue clustering in a specified circular region, one proposed sufficient condition is mathematically proved to be less conservative than those reported very recently in the literature. Another new sufficient condition is also proposed for guaranteeing that the linear discrete singular time-delay system with both structured (elemental) and unstructured (norm-bounded) parameter uncertainties holds the properties of regularity, causality, and eigenvalue clustering in a specified region. An example is given to demonstrate the applicability of the proposed sufficient conditions.

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