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A method for calculating the asymmetry in the shunt parameters of power lines in compensated distribution networks

journal contribution
posted on 2020-10-01, 00:00 authored by Ameen GargoomAmeen Gargoom, Aman Maung Than Oo, Martin Cavanagh
In compensated distributed networks (CDN), minimizing the asymmetry in the shunt parameters of the power lines is a key factor for avoiding excessive neutral voltages which is necessary not only for safety but also for improving the sensitivity of detecting ground faults, particularly when bush-fire mitigation is a major concern. This paper offers a comprehensive analysis and modeling of the asymmetry of the power lines in CDN. Unlike the existing analyses which assume the asymmetry can be lumped in one phase, the proposed analysis is based on more practical assumption by considering the asymmetry in all of the phases of the power lines. The proposed analysis is used to develop an equivalent circuit for asymmetrical CDN which then used to develop a new method for calculating the per-phase asymmetries in the shunt parameters. The proposed method has been validated based on simulations of real networks.

History

Journal

IEEE transactions on power delivery

Volume

35

Pagination

2168-2176

Location

Piscataway, N.J.

ISSN

0885-8977

eISSN

1937-4208

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Issue

5

Publisher

Institute of Electrical and Electronics Engineers