Evaluation on the equivalence between the backward/forward iterative sweep and the triangular-based power flow methods in electrical distribution networks

This paper demonstrates that graph-based power flow methods for strictly radial distribution networks (one based on the upper-triangular matrix and the other on the incidence matrix or classical backward/forward power flow method) are equivalent, implying that both recursive power flow formulas are...

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Bibliographic Details
Main Authors: Oscar Danilo Montoya-Giraldo, Walter Gil-González, Edwin Rivas-Trujillo
Format: Article
Language:English
Published: Universidad Industrial de Santander 2024-11-01
Series:Revista UIS Ingenierías
Subjects:
Online Access:https://revistas.uis.edu.co/index.php/revistauisingenierias/article/view/14702
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Summary:This paper demonstrates that graph-based power flow methods for strictly radial distribution networks (one based on the upper-triangular matrix and the other on the incidence matrix or classical backward/forward power flow method) are equivalent, implying that both recursive power flow formulas are the same. A small distribution network composed of seven nodes and six distribution lines is considered to demonstrate this equivalence. The main contribution of this research lies in the fact that it obtains a matrix relation between the upper triangular matrix and the demand-to-demand branch-to-node incidence matrix. Numerical comparisons in single-phase distribution networks comprising 33, 34, 69, and 85 nodes and three-phase asymmetric networks comprising 8, 25, and 37 nodes confirm the theoretical results.
ISSN:1657-4583
2145-8456