A stability criterion for singular systems with two additive time-varying delay components

Authors:
Jian-Min Jiao
Affiliations:
Department of Mathematics, Baoji University of Arts and Sciences, Baoji, China 721013
Venue:
International Journal of Automation and Computing
Year:
2013

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Abstract

The problem of stability for singular systems with two additive time-varying delay components is investigated. By constructing a simple type of Lyapunov-Krasovskii functional and utilizing free matrix variables in approximating certain integral quadratic terms, a delay-dependent stability criterion is established for the considered systems to be regular, impulse free, and stable in terms of linear matrix inequalities (LMIs). Based on this criterion, some new stability conditions for singular systems with a single delay in a range and regular systems with two additive time-varying delay components are proposed. These developed results have advantages over some previous ones in that they have fewer matrix variables yet less conservatism. Finally, two numerical examples are employed to illustrate the effectiveness of the obtained theoretical results.