A new method for finding low-voltage power flow solutions

Raymond P. Klump, Thomas J. Overbye

Research output: Contribution to conferencePaper

Abstract

Some techniques for analyzing power system voltage stability use alternative power flow solutions to compute their measure. These alternative solutions usually exhibit low bus voltage magnitudes at a subset of the system's nodes. For this reason, they are sometimes referred to as "low-voltage" power flow solutions. The fractal convergence regions exhibited by the Newton-Raphson power flow makes finding low-voltage solutions difficult, because it complicates the task of identifying an initial voltage guess that leads to the desired solutions. This paper derives a new approach for finding low-voltage power flow solutions directly from the structure of the Newton-Raphson power flow equations in rectangular coordinates. It compares the speed and frequency of convergence of the new technique with a previously proposed method to demonstrate its effectiveness in finding low-voltage solutions.

Original languageEnglish (US)
Pages593-597
Number of pages5
StatePublished - Dec 1 2000
EventProceedings of the 2000 Power Engineering Society Summer Meeting - Seattle, WA, United States
Duration: Jul 16 2000Jul 20 2000

Other

OtherProceedings of the 2000 Power Engineering Society Summer Meeting
CountryUnited States
CitySeattle, WA
Period7/16/007/20/00

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Keywords

  • Low-voltage power flow solutions
  • Newton's method
  • Power flow
  • Power systems

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Klump, R. P., & Overbye, T. J. (2000). A new method for finding low-voltage power flow solutions. 593-597. Paper presented at Proceedings of the 2000 Power Engineering Society Summer Meeting, Seattle, WA, United States.