Modal analysis of the electrical system's positional model

The mode of the electrical system is subject to various kinds of disturbances: changes in load, generation, equipment composition, network topology, etc. Therefore, in order to ensure reliable operation of the electrical system, it is necessary to accurately determine the limits of static stability. This paper is devoted to the study of the classical positional model of the electrical system for determining the limiting regimes on static aperiodic stability. Eigenvalues and eigenvectors of the positional model are analyzed. The criterion of the limiting regime of the classical model was obtained and analyzed.