Contactless powering of lim vehicle electrical system by...

Details Contactless powering of lim vehicle electrical system by... Contactless powering of lim vehicle electrical system by...

B - Operations, Transporting

60

L

335/1

B60L 5/00 (2006.01) B60L 13/03 (2006.01)

Patent

CA 1235761

INVENTION: CONTACTLESS POWERING OF LIM VEHICLE ELECTRICAL SYSTEM BY RECOVERY OF LIM SLIP POWER INVENTOR : W. JOHN BALLANTYNE ABSTRACT OF THE DISCLOSURE In a transportation system involving a track-side linear induction motor (LIM) primary and a vehicle carrying a LIM secondary, slip power in the secondary is recovered and used to power the on-board electrical system of the vehicle. The LIM secondary has a three-phase secondary winding rather than a conventional reaction plate. The winding is connected to a rectifier which converts slip current in the windings into electrical power for the on-board electrical system. This eliminates the necessity for any sliding contacts for power transfer, whilst simultaneously enabling at least part of the slip power, which is normally dissipated as heat in the secondary, to be recovered.

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