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Method for controlling voltage of DC link for electric vehicle

  • US 20070296357A1
  • Filed: 12/13/2005
  • Published: 12/27/2007
  • Est. Priority Date: 11/17/2005
  • Status: Active Grant
First Claim
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1. A method for controlling a voltage of a DC link in a power system of a vehicle including a battery, a DC/DC converter, the DC link, an inverter, a motor, and a control part controlling the DC/DC converter and the inverter, the method comprising the steps of;

  • installing a compensator in a control loop of the control part such that a DC link current of the DC/DC converter follows a DC link current of the inverter;

    calculating a predetermined compensation term based on information of the motor inputted into the compensator; and

    applying the compensation term to a voltage node in the control loop of the control part in the compensator.

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