Correlation based method for phase identification in a three phase LV distribution network

Pezeshki, Houman & Wolfs, Peter (2012) Correlation based method for phase identification in a three phase LV distribution network. In Proceedings of the 2012 22nd Australasian Universities Power Engineering Conference (AUPEC), IEEE, Bali, pp. 1-7.

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Low voltage distribution networks feature a high degree of load unbalance and the addition of rooftop photovoltaic is driving further unbalances in the network. Single phase consumers are distributed across the phases but even if the consumer distribution was well balanced when the network was constructed changes will occur over time. Distribution transformer losses are increased by unbalanced loadings. The estimation of transformer losses is a necessary part of the routine upgrading and replacement of transformers and the identification of the phase connections of households allows a precise estimation of the phase loadings and total transformer loss. This paper presents a new technique and preliminary test results for a method of automatically identifying the phase of each customer by correlating voltage information from the utility's transformer system with voltage information from customer smart meters. The techniques are novel as they are purely based upon a time series of electrical voltage measurements taken at the household and at the distribution transformer. Experimental results using a combination of electrical power and current of the real smart meter datasets demonstrate the performance of our techniques.

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2 citations in Scopus
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ID Code: 79450
Item Type: Conference Paper
Refereed: Yes
Keywords: building integrated photovoltaics, correlation methods, distribution networks, losses, phase estimation, power system identification, power system measurement, power transformers, power utilisation, time series, distribution transformer loss estimation, electrical voltage measurement, load unbalancing, phase connection identification, phase loading estimation, rooftop photovoltaic, single phase consumer distribution, smart meter dataset, three phase LV distribution network, three phase low voltage distribution network, voltage information correlation based method, Correlation, Loading, Noise, Phase transformers, Resource management, Synchronization, Voltage measurement, Distribution Network, Phase identification, Unbalance
ISBN: 9781467329330
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2012 IEEE
Deposited On: 15 Dec 2014 05:58
Last Modified: 06 Jan 2015 03:58

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