Scientific and Technical Journal

Russian Electromechanics

Russian Electromechanics. 2014; 5: 112-117


On the necessity of software improving for power grids steady-state modes analysis

V.G. Goldstein, A.S. Vedernikov, E.M. Shishkov, M.A. Shishkov

V.G. Goldstein, Doctor of Technical Science, Professor of the Department «Automated Electric Power Systems», Samara State Technical University. E-mail:

A.S. Vedernikov, Candidate of Technical Science, Associate professor, acting dean of the Electrotechnical Faculty, Samara State Technical University. E-mail:

E.M. Shishkov, Candidate of Technical Science, Assistant professor of the Department «Power plants», Samara State Technical University. E-mail:

M.A. Shishkov, Associate professor, department «Innovative technology at Power Grids», Samara State Technical University. E-mail:



The article provides an analysis of common software packages designed for the steady-state modes of power grids. Advantages and disadvantages of the mathematical apparatus used in their basis have been analyzed. Inability to use the method of symmetrical components for analysis of three-phase systems with internal asymmetry has been marked. It has been concluded that the widespread use of Smart Grid active-adaptive networks and FACTS devices makes unusable traditional one-line equivalent circuit at power grids steady-state calculations. An example of steady-state calculation of the simplest ring power grid in one-line formulation and phase coordinates has been demonstrated. The following calculation results have been compared - line voltages, phase currents, power flows and power losses in the double circuit overhead transmission lines.


Keywords: mathematical modeling, steady-state mode, symmetrical components, phase coordinates, FACTS


Full text: [in]



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