Symposium FORMS’2003 Budapest, Hungary, May 15-16, 2003-08-26 Formal Methods for Railway Operation and Control Systems, Organized by Budapest University of Technology and Economics, Department of Control and Transport Automation and Technical University of Braunschweig, Institute of Traffic Safety and Control Engineering, Germany


Leszek Mierzejewski - Warsaw University of Technology, Electric Traction Division

Adam Szeląg - Warsaw University of Technology, Electric Traction Division



    Network of railway lines of international importance in Poland makes over five thousand kilometres of double-track electrified on 3kV DC. Political and economical changes in Poland started in 1989 influenced process of modernisation of railways, according to the requirements of transport policy of European Union. During 1990s many feasibility studies have been performed concerned, among others power supply system, within framework of Polish State Railway and internationally sponsored projects. All these studies resulted in working-out technical concepts of modernisation of traction power supply in order to improve their effectiveness and capacity according to the traffic prognosis. The paper presents the methodology applied during the study works and some technical results of the performed analysis.

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[1] Capasso A., Guidi-Buffarini G., Morelli V., Mierzejewski L., Szelag A., Wach A. (1998). Potenziamento del sistema di alimentazione della linea ferroviaria Varsavia-Kunowice-Berlin. Mostra Convegno – La Tecnologia del Transporto su Ferro e L’orientamento al.Mercato., Napoli, ITALY, 122-130

[2] Capasso A., Morelli V., Mierzejewski L., Szelag A.(1997) : Power supply study of E-20 Railway Line Warsaw-Kunowice Section. 3rd International Scientific Conference DRIVES AND SUPPLY SYSTEMS FOR MODERN ELECTRIC TRACTION organized by Warsaw University of Technology, Polish Academy of Sciences, IEE-Polish Section and Railway Research Centre.Warsaw, 238-243

[3] Feasibility study of 3kV DC power supply system of Main Railway Line (CMK) for trains with the maximum speed 200- 250km/h.(1997) Warsaw University of Technology, Warsaw (not published)

[4] Mierzejewski L., Szelag A., Galuszewski M. (1989). System zasilania trakcji elektrycznej prądu stałego, WPW, - DC power supply system
(in Polish).Warsaw Univ.
Of Technology Publishing Office,1-314

[5] Mierzejewski L., Szelag A (1996): An analysis of disturbances in power utility systems caused by traction rectifier substation. COMPRAIL’96 Conference, Berlin,, 433- 442

[6] PHARE Project no PL 9309/0203 (1996-97) Power Supply Study for E-20 Railway Line Kunowice-Warsaw section” ITALFERR and Warsaw University of Technology (not published) Power supply system study of E-30 railway lineWegliniec- Zgorzelec (2000). Kolprojekt, Poland (not published)

[7] Rationalisation of electrical energy consumption on 3kV DC system of Polish Railway Lines (1998) (Research-study KBN Grant). Warsaw Univ. Of Technology, Railway Research Centre, Kolprojekt), (not published)

[8] Szelag A. – Zagadnienia analizy i projektowania systemu trakcji elektrycznej prądu stałego z zastosowaniem technik modelowania I symulacji- Problems of analysis and designing of a DC electric traction system with the application of modelling and simulation techniques (monograph in Polish) (2002) Warsaw University of Technology Publishing Office (OW PW), 1-180.

[9] Szelag A., Mierzejewski L.(2000) . Ground Transportation Systems (1999-2000). Wiley Encyclopedia of Electrical and Electronics Engineering. Supplement 1, John Wiley &Sons, Inc.,169÷194

[10] Technical standards for power supply equipment applied on lines with maximum speed 160km/h. (1998) Directorate General PKP. (not published)

[11] Wdowiak J., Mierzejewski L., Szelag A. (1993). – Projektowanie układów zasilania trakcji elektrycznej systemu prądu stałego. Podstacje trakcyjne- Designing of DC power supply system – Traction substations. (in Polish) WPW, Warsaw Univ. Of Technology Publishing Office, 1993,1-128

[12] 110kV AC power supply system of a traction substation Barlogi-Ponetow (1998), Kolprojekt, 1998 (not published)