Study of electrical power system models to determine the limit modes of static oscillatory stability

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 the reliable functioning of the electrical system, it is necessary to accurately determine the limits of static stability. This article is devoted to the study of the electrical system models that are used to determine the limit modes of static vibrational stability: Park-Gorev ’s models of the 6th and 3rd order, supplemented with an automatic regulator of excitation. The most suitable model for assessment of oscillatory stability limits is determined.