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Information × Registration Number 0217U002105, 0115U005597 , R & D reports Title Improvement of electric power quality in the contact wire with direct current popup.stage_title Head Shcerbak Yakiv Vasilievich, Registration Date 18-01-2017 Organization Ukrainian State University of Railway Transport popup.description2 The work is devoted to the researches of the improvement of electric power quality in the contact wire with direct current. The system of traction direct current power supply is a source of interfering and harmful influences on communication devices, automated mechanisms, telemechanics and signaling control. These influences are caused by harmonics of variable voltage component and contact wire current, the source of which is a rectifier unit of direct current traction substation. Nowadays this problem is solved by the usage of smoothing passive filters, but they have a lot of disadvantages. In the course of the research we examined a modern closed automatically regulated structure of a rectifier with width-regulated voltage booster converter that solves the problem of harmonic attenuation of variable voltage and current component in the direct current contact wire. To prove the suggested scheme with a regulated voltage booster the researches were carried out as for the dynamics and automatically regulated system of a rectifier unit with a width-regulated voltage booster in a transient mode. The results of the research prove the efficiency of the usage of a closed structure of an automatically regulated rectifier with a width-regulated voltage booster converter in direct current traction substations.5481 Product Description popup.authors Панченко Владислав Васильович Семененко Юрій Олександрович Щербак Яків Васильович popup.nrat_date 2020-04-02 Close