THYRISTOR LOCOMOTIVES WITH THREE-PHASE DRIVES - DEVELOPMENT FOR THE FUTURE

Up to now, ASEA's thyristor locomotives have been equipped with d. c. motors. Now that static high-power inverters are available, the alternative with three-phase induction motor drives has opened up interesting possibilities. The development of a locomotive with three-phase drive, also known as the three-phase asynchronous locomotive, inverter locomotive, etc. , represents ASEA's hitherto largest development project in the traction field. The propulsion system for one motor in the Rz locomotive with three-phase drive is described. This system is based on the use of voltage-source inverter (VSI). A single-phase line inverter (NVX) feeds a voltage d. c. link (U//d). From this the motor inverter (MVX) generates a three-phase variable-frequency alternating voltage. Power pulsations of twice the line frequency of the traction supply system are smoothed with a tuned filter (G) in the link. The inverter, motor design and speed control features are briefly described.

  • Availability:
  • Corporate Authors:

    Allmanna Svenska Elektriska Aktiebolaget

    S-72183 Vasteras,   Sweden 
  • Authors:
    • Leander, P
  • Publication Date: 1984

Media Info

  • Pagination: p. 24-29
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00391563
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Jan 30 1985 12:00AM