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REGENERATING BRAKING SYSTEM INCLUDING SYNCHRONOUS MOTOR WITH FIELD EXCITATION AND CONTROL METHOD THEREOF

  • US 20090302788A1
  • Filed: 06/04/2009
  • Published: 12/10/2009
  • Est. Priority Date: 06/05/2008
  • Status: Active Grant
First Claim
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1. A regenerating braking system comprising:

  • a synchronous motor with field coil excitation comprisinga cylindrical stator coil,an inverter electrically connected to the stator coil,a battery electrically connected to the inverter,a rotor coil provided in an internal space of the stator coil,a two-way switch electrically connected to the rotor coil, anda capacitor electrically connected to the two-way switch; and

    a controller electrically connected to the inverter, the two-way switch, and the capacitor,wherein when the first differential calculus of acceleration of a load on the synchronous motor becomes negative, the controller stores regenerative power regenerated in the rotor coil from the stator coil, in the capacitor through the two-way switch, andwherein the controller supplies the regenerative power stored in the capacitor to the rotor coil through the two-way switch.

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