Contactless powering of LIM vehicle electrical system by recover

Details Contactless powering of LIM vehicle electrical system by recover Contactless powering of LIM vehicle electrical system by recover

1985-01-04

1987-01-13

Reeves, Robert B.

Railways

Car-carried propulsion system

Electric

104290, B60L 100, B61B 1308

Patent

active

046355600

ABSTRACT:
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, while simultaneously enabling at least part of the slip power, which is normally dissipated as heat in the secondary, to be recovered.

REFERENCES:
patent: 3513338 (1970-05-01), Poloujadoff
patent: 4061089 (1977-12-01), Sawyer
patent: 4160181 (1979-07-01), Lichtenberg

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