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Nonlinear contingency screening for voltage collapse

  • US 6,496,757 B1
  • Filed: 07/30/1999
  • Issued: 12/17/2002
  • Est. Priority Date: 07/30/1999
  • Status: Expired due to Fees
First Claim
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1. A method for estimating the amount of stress, expressed in megawatts and/or megavars, a power system can handle before occurrence of a widespread blackout comprising the steps of:

  • obtaining a normal bifurcation point;

    estimating, from the normal bifurcation point, a post-contingency voltage collapse point of said power system following one of a set of generator unit outages and a set of branch outages; and

    calculating a distance to collapse of said power system.

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