A Semi Analytic Approach to the Robust Stability of Quasipolynomials
نویسندگان
چکیده
A semi-analytic tool for the study of the robust stability of time delay systems is presented. The approach is based on graphical methods. The conditions of the Finite Nyquist Theorem for quasipolynomials given in (Santos et al., 2003b) are improved. The Finite Inclusions Theorem for polytopic and interval quasipolynomials families is derived. An algorithm describing how to apply this new technique to analyze the robust stability of families of quasipolynomials is presented. The e¤ectivity of this algorithm, which is implemented in Matlab, is validated with the analysis of two examples. Copyright c 2005 IFAC.
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تاریخ انتشار 2005