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            Comparison of Major Parameters in Electrodynamic and Electromagnetic Levitation Transport Systems
      

      
  Document Series
              Technical Reports


      
  Author
          W. S. Brown, C. R. Dauwalter, F. Heger, M S. Weinberg


      
Report Number
              DOT/FPA/NMI-92/15

  Office
              RRD


      Subject
                    Maglev,
                    Motive Power and Equipment


      
  Keywords
              Suspensions, High Speed Ground Transportation, Magnetic Levitation, Linear Induction Motors, Linear Synchronous Motors, Ride Comfort


      

      
      
              
                  
      
              
  Document
              1992_COMPARISON OF MAJOR PARAMETERS IN ELECTRODYNAMIC A.PDF (41.26 MB)

      
              This study compiles quantitative design information that can be used in selecting a high-speed magnetic levitation system. Analytic models were developed for three configurations of electromagnetic (EMS) and three electrodynamie (EDS) systems, and for linear induction and synchronous motors. The models permit comparisons based on consistent assumptions. The following results indicate that the hoped-for advantages of EDS are difficult to realize: 1) all of the systems studied require smooth guideways to achieve acceptable ride quality unless active control techniques are developed; 2) the estimated weight of the superconducting magnets for the EDS systems is surprisingly large and comparable to the weight of the EMS onboard electromagnets; and 3) real power consumption in sheet guideway null flux EDS is similar to EMS when practical configurations and end effects are considered.
      
            
      
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              Last updated: Tuesday, September 1, 1992 U.S. DEPARTMENT OF TRANSPORTATION

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