Title :
Pulsed linear induction motors for Maglev propulsion
Author_Institution :
American Maglev Technol. Inc., New Smyrna Beach, FL, USA
fDate :
9/1/2000 12:00:00 AM
Abstract :
Linear induction and synchronous motors have been the favored approaches to linear propulsion in the Maglev community. Both require variable-frequency-power handling and usually rectifier-inverter power electronics, and they are earmarked by a low-power factor. One alternative is a less-conventional pulsed linear induction motor (PLIM). Advantages of PLIM are that it eliminates low-power factor transfer, has smaller end-winding overhang, and used simple electronics. The paper examines various embodiments of this approach with rectangular guideway coils and considers the tradeoffs in using full-wave and half-wave excitation pulses
Keywords :
coils; electric propulsion; linear induction motors; magnetic levitation; railways; Maglev propulsion; discrete coils; full-wave excitation pulses; half-wave excitation pulses; linear propulsion; low-power factor transfer elimination; multiple coils; pulsed linear induction motors; rectangular guideway coils; simple electronics; smaller end-winding overhang; speed control; Aluminum; Coils; Helium; Inductance; Induction motors; Magnetic levitation; Power electronics; Propulsion; Synchronous motors; Vehicles;
Journal_Title :
Magnetics, IEEE Transactions on