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Methods and systems for measuring a rate of change of requency

  • US 20070136013A1
  • Filed: 12/09/2005
  • Published: 06/14/2007
  • Est. Priority Date: 12/09/2005
  • Status: Active Grant
First Claim
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1. A method for measuring a rate of change of frequency, said method comprising:

  • estimating at least one phasor value;

    estimating a frequency based on the estimated at least one phasor value;

    compensating the estimated at least one phasor value based on the estimated frequency;

    calculating a frequency based on the compensated at least one phasor value; and

    calculating a rate of change of the calculated frequency based on the calculated frequency.

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