A PRELIMINARY EVALUATION OF ELECTRICAL PROPULSION BY MEANS OF IRON-CORED SYNCHRONOUSLY OPERATING LINEAR MOTORS

The report is a preliminary evaluation of the technical feasibility of using iron-cored, synchronously operating motors to propel ground transportation vehicles in the high cruise speed range. A second consideration is the possibility that the motor might also provide strong attractive and lateral forces. Three motor types, all realizable with passive track rails are investigated: (a) claw-pole synchronous motor, (b) homopolar inductor motor, and (c) heteropolar inductor motor. A rail clearance of 1.5 cm is specified. However, the effect of variations in this and other design parameters is also analyzed. All three types considered compare favorably with an equivalent single-sided induction motor, insofar as weight, efficiency, and power factor are concerned. The calculations are supported by analog simulation experiments.

• Corporate Authors:

  Polytechnic Institute of New York

  333 Jay Street
  Brooklyn, NY  United States  11201

  Federal Railroad Administration

  Office of Research and Development, 1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Levi, E
• Publication Date: 1975-1

Media Info

• Pagination: 113 p.

Subject/Index Terms

• TRT Terms: Analysis; Design; Electric railroads; Feasibility analysis; Homopolar generators; Intelligent transportation systems; Linear induction motors; Linear motors; Linear systems; Motors; Propulsion; Rapid transit; Synchronous motors; Vehicle power plants
• Uncontrolled Terms: Propulsion systems
• Old TRIS Terms: Advanced systems; Analyzing; Claw-pole motors; Homopolar motors; Rapid transit railroads
• Subject Areas: Design; Operations and Traffic Management; Public Transportation; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00145597
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FRA-TR-76-128 Tech. Rpt.
• Contract Numbers: DOT-FR-30030
• Files: NTIS, TRIS, USDOT
• Created Date: Jan 16 1982 12:00AM