THYRISTOR (SCR) CHOPPER CONTROL SYSTEM FOR TRANSPORTATION EQUIPMENT

Circuit design. Series field d-c traction motor control, providing smooth tractive effort control motoring and in dynamic braking of 500 to 1,000 hp (continuously rated) rapid transit car drives, especially in the Chicago Transit Authority System is described. The thyristors are switched by a feedback current control system utilizing a fixed-frequency variable pulse-width technique. Armature series reactors and line filter requirements are minimized by a multistage scheme. Both armature and field currents are modulated for full speed range control. Third rail system extreme voltage transients are accommodated by system features.

• Corporate Authors:

  Institute of Electrical and Electronics Engineers (IEEE)

  3 Park Avenue, 17th Floor
  New York, NY  United States  10016-5997
• Authors:
  • Zeccola, R A
  • Weiser, E F
• Publication Date: 1969-7

Media Info

• Pagination: p. 470-5
• Serial:
  • IEEE Transactions on Industry and General Applications
  • Volume: IGA5
  • Issue Number: 4
  • Publisher: Institute of Electrical and Electronics Engineers (IEEE)

Subject/Index Terms

• TRT Terms: Motors; Rapid transit; Thyristors; Traction; Traction drives
• Subject Areas: Railroads;

Filing Info

• Accession Number: 00037162
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: Paper TP-12-IGA
• Files: TRIS
• Created Date: Oct 13 1973 12:00AM