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1 Bulletin of the Polish Academy of Sciences. Technical Sciences

1 2020

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Stability and stabilization of positive linear dynamical systems: new equivalent conditions and computations

Yang H., Hu Y.

Bulletin of the Polish Academy of Sciences. Technical Sciences

2020

Vol. 68, nr 2

307--315

New equivalent conditions of the asymptotical stability and stabilization of positive linear dynamical systems are investigated in this paper. The asymptotical stability of the positive linear systems means that there is a solution for linear inequalities systems. New necessary and sufficient conditions for the existence of solutions of the linear inequalities systems as well as the asymptotical stability of the linear dynamical systems are obtained. New conditions for the stabilization of the resultant closed-loop systems to be asymptotically stable and positive are also presented. Both the stability and the stabilization conditions can be easily checked by the so-called I-rank of a matrix and by solving linear programming (LP). The proposed LP has compact form and is ready to be implemented, which can be considered as an improvement of existing LP methods. Numerical examples are provided in the end to show the effectiveness of the proposed method.