INDUCTION MOTOR TRACTION, SUPPLIED BY PWM INVERTERS FROM 3,000 VOLT D-C POWER DISTRIBUTION

The advantages of higher power distribution voltages have long been recognized in electrified railroad operation. The development of power electronic devices, using solid state semiconductor elements has made on-board power conversion preferable. A pulse width modulation (PWM) system permits conversion of d-c to a variable voltage and frequency three phase a-c to supply squirrel cage induction motors for traction. The analysis given in the paper considers the entire power system from a-c input from an electric power network to the traction motors. It is found that a d-c link is inherent in the PWM induction motor system, and that this link is best provided as the power distribution system from substation to car, rather than on board with a-c distribution.

• Supplemental Notes:
  • Presented at the 4th Annual Intersociety Conference on Transportation, Los Angeles, California, July 18-23, 1976, see also RRIS 26 148247.
• Corporate Authors:

  American Society of Mechanical Engineers

  Two Park Avenue
  New York, NY  United States  10016-5990
• Authors:
  • Holden, WHT
  • Gardner Sr, D
• Publication Date: 1976

Media Info

• Pagination: 8 p.

Subject/Index Terms

• TRT Terms: Alternating current motors; Electric power conditioning; Electric power supply; Propulsion; Pulse modulation; Railroad electrification; Solid state devices; Traction drives; Vehicle power plants
• Uncontrolled Terms: Propulsion systems
• Old TRIS Terms: Pulse modulated control; Solid state
• Subject Areas: Energy; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00148250
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: Paper D&O-13 Conf Paper
• Files: TRIS
• Created Date: Feb 16 1977 12:00AM