Technical Reports

Linear Synchronous Motors for Maglev

  • 01
  • Jan
  • 1993
AUTHOR: Richard D. Thornton, David Perreault, Tracy Clark
OFFICE: RPD
REPORT NUMBER: DOT/FRA/NMI - 92/13
SUBJECT: Maglev
KEYWORDS: Position Sensing, Guideways, Power Electronics, Helical Winding, Power Distribution
ABSTRACT: This paper is based in large part on work done in the DOT sponsored study, "Low Cost Linear Synchronous Motor Propulsion for Maglev." The principal objectives are to create a methodology for designing a Linear Synchronous Motor (LSM) with emphasis on new ideas not embodied in existing maglev designs and ideas that contribute to cost reduction. The primary focus is on the propulsion of a high speed vehicle suspended by Electro Dynamic Suspension (EDS), but many of the ideas are applicable to Electro Magnetic Suspension (EMS) designs. We have created models, analytic methods and computation algorithms for predicting performance and estimating cost. There is equal emphasis on simple approximate methods that are suitable for conceptual design studies, and more detailed methods that can be used to refine a design. Also included are descriptions of existing propulsion systems for Maglev and high speed rail because these can be used as a benchmark for comparison with new ideas. There is no attempt to create an "optimum" design because the propulsion system is only a part of a complete maglev system, and many system attributes will affect the LSM design.

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