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ELECTRIC TRACTION SYSTEM FOR A VEHICLE HAVING A DUAL WINDING AC TRACTION MOTOR

  • US 20090033253A1
  • Filed: 05/15/2008
  • Published: 02/05/2009
  • Est. Priority Date: 07/30/2007
  • Status: Abandoned Application
First Claim
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1. An electric traction system for a vehicle, the system comprising:

  • an AC electric motor comprising;

    a stator having winding slots formed therein;

    a first set of windings wound in the winding slots; and

    a second set of windings wound in the winding slots, the second set of windings being electrically isolated from the first set of windings;

    a first inverter subsystem coupled to the first set of windings, the first inverter subsystem being configured to drive the AC electric motor;

    a first DC energy source coupled to the first inverter subsystem, the first DC energy source having a first nominal voltage;

    a second inverter subsystem coupled to the second set of windings, the second inverter subsystem being configured to drive the AC electric motor; and

    a second DC energy source coupled to the second inverter subsystem, the second DC energy source having a second nominal voltage;

    whereinthe first set of windings and the second set of windings are configured as a transformer for voltage matching between the first DC energy source and the second DC energy source.

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