Stability Analysis for Linear Systems with Time-Varying Delay

摘要: This chapter is concerned with the stability problem for linear systems with a time-varying delay by using the Lyapunov–Krasovskii (L–K) functional method. Integral/summation inequalities proposed in the previous chapters are utilized and corresponding L–K functionals are deliberately constructed. According to the ways of estimating the single-integral/summation term arising in the derivative or the forward difference of L–K functionals, two types of stability conditions are consequently obtained: those obtained by the combination of integral/summation inequalities without free matrices and the reciprocally convex lemma and those obtained by integral/summation inequalities with free matrices. The relationship between them is closely studied. It is pointed out that the conservatism of the two types of corresponding conditions cannot be compared in theory.