Moirangthem, J and Krishnan, KR and Panda, SK and Amaratunga, G (2018) *Voltage Stability Assessment by Holomorphically Estimating the Bifurcation Point of Electric Grids.* In: UNSPECIFIED.

## Abstract

Modernization of the grid, inclusive of high renewable energy penetration and the consequent power variability, requires fast power-flow computations for useful management of power in new network configurations. Voltage stability of an electrical grid is a big challenge to solve in power system operation, so as to avoid voltage collapse and subsequent black outs. This paper presents a novel means of voltage stability assessment by estimating the bifurcation point within the context of a non-iterative power-flow method known as Holomorphic Embedded Power Flow (HEPF). HEPF is computationally fast and guarantees solution to the power flow problem through constructing the mathematical solution for the power-flow problem, provided the solution exists. A 3-bus system is first used to explain the holomorphic matrix formulations and then demonstrated on a 4-bus system and a 9-bus test-case to evaluate proximity to a critical point with respect to load change.

Item Type: | Conference or Workshop Item (UNSPECIFIED) |
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Subjects: | UNSPECIFIED |

Divisions: | UNSPECIFIED |

Depositing User: | Cron Job |

Date Deposited: | 27 Sep 2019 20:50 |

Last Modified: | 10 Apr 2021 22:41 |

DOI: | 10.1109/EEEIC.2018.8493798 |