Dmitrii V. Iakubovskii, Dmitriy S. Krupenev, Denis A. Boyarkin

Melentiev Energy Systems Institute Siberian Branch of the Russian Academy of Sciences,

The continuous changes and development of electric power systems lead to their complication and enlargement. In this connection, existing models and software systems that allow to assessing the adequacy of such systems may work not effectively in terms of time, accuracy and adequacy of results. To obtain objective information, there was made analysis of a number of existing power shortage minimization models, while solving the problems of assessing the adequacy. The materials of this article reflect the results of model studies on the presence of physically incorrect distribution of power flows between nodes. The existing of bilateral flows and a number of optimal solutions has been proved. The current approach that taking into account the adequate distribution of power flows, also has been tested. As a solution to the problems described above, the additional constrains on overflows were proposed, as well as a two-stage method for optimizing the flow distribution, which ultimately solved all the problems found.

assessing the adequacy, minimization of power shortage, two-stage flow distribution model, optimization methods