ISSN: 1451-4117
E-ISSN: 1821-31977
Volume 6 number 20, pages: 7 - 14
The vast majority of electric vehicle used by the "Serbian railways" use obsolete bridge rectifier that is a source of harmonic currents; predominantly odd ones. The size of current harmonics also depends on the structure of reaction supplying section. Some of the current harmonics, the source of which is electric vehicle, may increase as an implication of resonances. In our article we characterise this increase by coefficient of increase in current kn. This coefficient is, for each harmonic, determined by the ratio of the harmonic's current in the traction transformer substation and its current on the vehicle collector. The article deals with the influence of a constellation of the traction supplying section; predominantly with influence of number of electric vehicles on the coefficient kn.
1. Hlava, K. (1975) Proudová rezonance v trakcním obvodu jednofázové soustavy 25 kV, 50 Hz. Sbornik praci VUZ, c. 4
2. Jaćimović, S. (1976) Elektromagnetni uticaj vodova električne vuče jednofaznog sistema 25 kV, 50 Hz na vodove elektroveza. Beograd: Zavod za novinsko-izdavačku i propagandnu delatnost JŽ
3. Milićević, Z., Aranđelović, D., Marjanović, V., Pejčić, D. (1997) Električne lokomotive JŽ 441. Beograd: Želnid
4. Plazinić, M.V. (1997) Rešavanje skin efekta pomoću metode petlje. Niš: Elektronski fakultet, magistarska teza
5. Reimer, M. (2002) Resonance in 25 kV; 50 Hz network by higher number of electric vehicles in the traction supplying section. Electro revue, 24, Faculty of Electrical Engineering and Computer Science - Department of Theoretical Electrical Engineering, Ostrava, Poruba
6. Societa Anonima Elettrificaazione S. p. A Milano (1978) Elektrifikacija Jugoslovenskih železnica monofaznim sistemom 25 kV, 50 Hz - opšti projekat kontaktne mreže