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Документ Improving the Quality of Electrical Energy in the Railway Power Supply System(Institute of Electrical and Electronics Engineers, 2018) Sokol, Yevgen I.; Zamaruiev, Volodymyr V.; Ivakhno, Volodymyr V.; Styslo, Bohdan O.The pulsating mode of the power consumption in the railroad power supply network is the cause of the occurrence of voltage pulsations in the contact network. This leads to a decrease in the efficiency of the energy system. To compensate power fluctuations in the electric power supply network of the railway, it is proposed to use hybrid electric energy storage devices. The use of two-channel additional traction power station with an appropriate control system was proposed. The basis of the mathematical model is the data of real measurements.Документ Rectifiers with a combined filtration of primary current for high-frequency power systems(2013) Sokol, Yevgen I.; Goncharov, Yu. P.; Eresko, A. V.; Ivakhno, Volodymyr V.; Krivosheev, S. Yu.; Zamaruiev, Volodymyr V.; Lobko, A. V.; Voytovich, Yu. S.The article considers the ideology of connection of communal loads at low-voltage high-frequency power supply, which allows to create non-contact wide-range power control loads and non-contact protection at emergency conditions.Документ 18-Pulse rectifier with electronic phase shifting and pulse width modulation(2018) Sokol, Yevgen I.; Zamaruiev, Volodymyr V.; Ivakhno, Volodymyr V.; Voitovych, Yurii S.; Butova, Olha; Makarov, VadimAt present, 12-pulse rectifiers with electronic phase shift are known. Unlike classic rectifiers, they do not use phase-shifting transformers and have a unit power factor. Increasing of the rectifier’s pulse makes it possible to improve the harmonic composition of the input current. This article is devoted to the study of the operation of an 18-pulse rectifier with an electronic phase shift. The use of the principle of electronic phase shift leads to different levels of constant voltage at the output of the rectifiers. The introduction of pulse-width modulation contributes to equalizing the output voltages of the 6-pulse rectifiers which are the parts of the converter. In addition, the use of the pulse-width modulation allows eliminating matching magnetic elements which are used to equalize rectifiers output voltages. This improves the mass and dimension parameters of the converter. The results of modeling are presented.Документ The Specificity of Electrical Energy Storage Unit Application(IPM NASU, 2017) Sokol, Yevgen I.; Zamaruiev, Volodymyr V.; Styslo, Bohdan O.; Makhonin, Mykola V.