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Improving the quality of voltage in the system of traction power supply of direct current

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Purpose of the work is improved approaches to ensure the required quality parameters of voltage in the traction network based on modern technologies and equipment in the application of power distribution system. Actuality. The introduction of high-speed traffic, increase weight standards Train necessitates increasing the carrying capacity of railways. Often the carrying capacity of existing sections electrified at 3.0 kV DC power supply unit limits. Such limitations include voltage decrease on the electric current collector below the allowable value for the normal operation of 2700 (2900 for high-speed V) and heating the contact wires, thereby losing their mechanical strength. Existing power supply system of RS, which have considerable installed traction substations, can not provide the required level of power density traction network for high-speed movement within 1.5 - 2 MW / km and, respectively, the required voltage quality. At the same time, the daily loading of a powerful traction substations in providing intensive schedule of trains does not exceed 20-25%, while the energy loss in traction network peak load increases and reaches 10-15% of the energy consumed. Thus, the existing system of power traction networks is not sufficiently effective and economical, even with the application of existing methods to strengthen them. In our view, the main limiting factor for a given quality of voltage in the traction network is the use of centralized power. From this, the development of measures to improve the quality of voltage in the traction network in the implementation of high-speed traffic in a growing scarcity of energy resources is an urgent task. Scientific novelty. Using distributed power supply system with adjustable supply points combined into intelligent power supply, which enables adaptive change the characteristics of the transfer, conversion and consumption and optimize the mode of functioning of the traction power supply is suggested for improving the quality of voltage in the traction network in the implementation of high-speed and heavy traffic. Practical significance. Improving the quality of voltage in the traction network by using the proposed circuit design traction power supply will ensure the desired mode voltage and power characteristics of the traction network in the implementation of high-speed and heavy traffic while reducing electricity losses by 20-30%.
Rocznik
Strony
63--70
Opis fizyczny
Bibliogr. 9 poz., rys., wykr.
Twórcy
  • Dnepropetrovsk National University of Railway Transport named after Academician V. Lazarian, Dnepropetrovsk, Ukraine, elpostz@i.ua
autor
  • Dnepropetrovsk National University of Railway Transport named after Academician V. Lazarian, Dnepropetrovsk, Ukraine
  • Dnepropetrovsk National University of Railway Transport named after Academician V. Lazarian, Dnepropetrovsk, Ukraine
Bibliografia
  • [1] ARZHANNIKOV, B.A., 2012. DC traction power supply high-speed trains and heavy. Ekaterinburg USURT.
  • [2] GONCHAROV, Y.P., SOKOL, E.I., ZAMARUEV, V.V. and ET AL., 2015. A system for converting the energy generated in the right of way of the railway with the help of solar panels. Bulletin of Azov State Technical University: Collection of scientific works, 30, pp. 200-211.
  • [3] GONCZAROW, J.P., SYCZENKO, W., BOSYJ, D.A., PASTUSZENKO, M.S. and KOSARIEW, E.N., 2014. Increasing the efficiency of the traction power supply in the application of renewable electrical energy. Problemy Kolejnictwa, 162, pp. 65-82.
  • [4] KOSJAKOV, A.A., 2013. Evaluation of the possibility of applying the methodology of smart grids in power supply systems of railway transport. Railway Transport, 2, pp. 34-38.
  • [5] ROJEK, A., 2012. Zasilanie trakcji elektrycznej w systemie prądu stałego 3 kV. Warsaw: KOW media&marketing.
  • [6] STASIUK, O.I., GONCHAROV, L.L. and MAXIMCHUK, V.F., 2014. Methods of the organization of intelligent electrical networks of railways on the basis of the concept of SMART Grid. Information management systems in rail transport, 2, pp. 29-37.
  • [7] SYCHENKO, V.G., 2011. Power Quality Indicators in traction networks DC. Labor-Іn the Electrodynamics of NAS of Ukraine. Specialist. release. - K .: ІED NASU, Part 2, , pp. 5-13.
  • [8] SYCHENKO, V.G., SAENKO, J.L. and BOSIY, D.O., 2015. Quality of electric energy in the traction network of electrified railways. Day-Su "Standard Service".
  • [9] SZELĄG, A., 2013. Wpływ napięcia w sieci trakcyjnej 3 kV DC na parametry energetyczno-trakcyjne zasilanych pojazdów. Radom: Instytut Naukowo-Wydawniczy SPATIUM.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-eb6fb99e-83ab-4c33-a33c-03e7b63d6fbb
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