TRACTION CONVERTERS WITH A HIGH POWER FACTOR

BAHN-STROMRICHTER MIT GUTEM LEISTUNGSFAKTOR

Converters with delayed contact for train traction result in low losses, but do not have a satisfactory power factor through the whole operating range. As in the lower speed ranges, the value of the power factor is smaller than that in vehicles with amplifying current modulation, improvement is attempted by means of multi-impulse control. The authors explain: a non-controlled bridge connection with a d.c. converter inserted after it, which is synchronised with the mains frequency; a semi-controlled bridge connection with a special condenser circuit-breaking device; a bridge connection with adjustable valves, each side controlled separately. The disturbing current is less than I.A. The article describes the mains current behavior and the outlet voltage of these connections.

• Corporate Authors:

  VDE Verlag GmbH

  Bismarckstrasse 33
  1000 Berlin 12,   Germany 
• Authors:
  • Fick, H
• Publication Date: 1975-5

Language

• German

Media Info

• Features: Figures; References;
• Pagination: p. 239-242
• Serial:
  • Elektrotechnische Zeitschrift, Ausgabe A
  • Volume: 96
  • Issue Number: 5
  • Publisher: VDE Verlag GmbH

Subject/Index Terms

• TRT Terms: Electric power conditioning; Electric substations; Power converters; Power factor (Electricity); Railroad electrification
• Old TRIS Terms: Converters; Power factor
• Subject Areas: Energy; Railroads;

Filing Info

• Accession Number: 00129405
• Record Type: Publication
• Source Agency: International Union of Railways
• Files: TRIS
• Created Date: Feb 19 1976 12:00AM