## 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 language | English (US) |
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Pages | 593-597 |

Number of pages | 5 |

State | Published - Dec 1 2000 |

Event | Proceedings of the 2000 Power Engineering Society Summer Meeting - Seattle, WA, United States Duration: Jul 16 2000 → Jul 20 2000 |

### Other

Other | Proceedings of the 2000 Power Engineering Society Summer Meeting |
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Country | United States |

City | Seattle, WA |

Period | 7/16/00 → 7/20/00 |

## Keywords

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

## ASJC Scopus subject areas

- Electrical and Electronic Engineering