Підвищення якості напруги та її регулювання на струмоприймачах електрорухомого складу залізниць України за допомогою ШІМ регульованих перетворювачів

Abstract

Modern approaches to modernization of the pantograph tension stabilization system for a 3 kW direct current electric train which moves in an area between traction substations were proposed. A simplified structure of traction power supply was presented. An algorithm for solving the problem of voltage stabilization on the pantograph of an electric train was developed and implemented in MATLAB. The MATLAB model was used to test the algorithm proposed for stabilization of the set level of voltage on the pantograph of an electric train. The oscillograms obtained are given. A direction for perfecting the system of traction power supply of 3kW direct current railways using pulse-width modulated converters as active filters, which allowed to decrease the mass of inductance of the output filter of traction substation and decrease harmonic components of both output and supply network voltages, was proposed.