Siberian Federal University

Issue

Journal of Siberian Federal University. Engineering & Technologies. 2021 14 (8)

Authors

Gerasimenko, Alexey A.; Belyaevsky, Roman V.

Contact information

Gerasimenko, Alexey A.: Siberian Federal University Krasnoyarsk, Russian Federation; Belyaevsky, Roman V.: T.F. Gorbachev Kuzbass State Technical University Kemerovo, Russian Federation;

Keywords

digital energy; smart grid; reactive power; power losses; statistical multimode accounting; generalized load graph; nodal voltage equation

Abstract

The article deals with the development prospects for smart grids. An approach to optimizing the modes of electric power systems in terms of reactive power is presented in detail. The solution of this problem considers the multimodality, determination of the integral characteristics of the modes, etc. Analytical modeling of load changes by means of the method of factor analysis allows to reduce the amount of information drastically without a significant loss of the accuracy of the obtained solutions. For this purpose, the actually correlated electrical loads of various nodes of electric power systems are represented in the form of a linear combination of independent random variables, namely, generalized load graphs. It is shown that the inclusion of multimode by orthogonal graphs results in a significant simplification of the solution of multimode problems. The choice of the dependent and independent variables composition when solving the optimization problem with the power consumption modes has a fundamental effect both on the modeling of constraints, the formation of the reduced gradient and the main calculation expressions, and on the speed of the optimization search as a whole

Pages

886–893

DOI

10.17516/1999-494X-0359

Paper at repository of SibFU

https://elib.sfu-kras.ru/handle/2311/145042

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).