HIGH SPEED GROUND TRANSPORTATION. A PRELIMINARY STUDY OF THE LINEAR INDUCTION MOTOR FOR HIGH SPEED GROUND TRANSPORTATION

A theoretical study was undertaken to describe the characteristics of a linear induction motor for High Speed Ground Transportation. A quasi-one-dimensional analysis is made of a linear induction motor without recourse to the usual idealization of the polyphase stator windings into current sheets. The analysis assumes that the stator windings and the induced currents inside the reaction rail (rotor) produce a resultant traveling wave magnetic field at the stator surfaces, and under the assumption of negligible end effect, the electromagnetic boundary conditions are applied to determine the attenuation of the magnetic field, both inside the reaction rail and at the air gap between the reaction rail and stator surfaces. Taking into account real machine effects, expressions based on classical AC machine theory are given for the required exciting current, the generated voltage, the net power output, and the electrical efficiency. Results are reduced into equivalent circuit form so comparisons can be made with conventional rotary induction motors. (Author)

• Corporate Authors:

  TRW Systems Group

  Washington Operations
  McLean, VA  United States  22101
• Publication Date: 1968-1

Media Info

• Pagination: 120 p.

Subject/Index Terms

• TRT Terms: Intelligent transportation systems; Linear induction motors
• Old TRIS Terms: Advanced systems
• Subject Areas: Operations and Traffic Management; Railroads;

Filing Info

• Accession Number: 00039111
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: 06818-W454-R0-12
• Contract Numbers: C-353-66
• Files: TRIS
• Created Date: Nov 24 1973 12:00AM