Modified space vector pulse width modulation technique to reduce DC bus ripple effect in voltage source inverters

  • US 6,313,602 B1
  • Filed: 04/06/2000
  • Issued: 11/06/2001
  • Est. Priority Date: 04/30/1999
  • Status: Expired due to Term
First Claim
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1. A method for space vector pulse width modulation drive of a motor from a rectified AC input voltage comprising the steps of:

  • measuring a voltage ripple of the rectified AC input voltage;

    calculating corrected instantaneous pulse width modulation drive based upon the corresponding measured voltage ripple, said step of calculating corrected instantaneous pulse width modulation drive calculates respective X, Y, and Z duty cycle ratios dx, dy, and dz as follows;

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