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Contactless powering of LIM vehicle electrical system by recovery of LIM slip power

  • US 4,635,560 A
  • Filed: 01/04/1985
  • Issued: 01/13/1987
  • Est. Priority Date: 01/04/1985
  • Status: Expired due to Fees
First Claim
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1. A transportation system including a linear induction motor primary for generation of a moving magnetic field along a path and a vehicle fitted with a linear induction motor secondary so that the vehicle is propelled along the path by the moving magnetic field, the vehicle having an on-board electrical system including lights, fans or other electrical apparatus, the secondary comprising a reaction winding in which current is induced by the moving magnetic field for generation of thrust,the vehicle including conversion means connected to the winding to convert current induced in the winding into electrical power for operation of the on-board electrical system whereby slip power in the secondary can be converted into electrical power for operation of the on-board electrical system;

  • and the vehicle also including a slip power recovery unit for controlling the recovery of slip power, said slip power recovery unit including a rectifier, a load resistor, storage means for storing rectified current, and means enabling the output of the rectifier to be connected selectively to one or more of the load resistor, the storage means and the on-board electrical system.

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