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Voltage imbalance analysis in residential low voltage distribution networks with rooftop PVs

Shahnia, F.ORCID: 0000-0002-8434-0525, Majumder, R., Ghosh, A., Ledwich, G. and Zare, F. (2011) Voltage imbalance analysis in residential low voltage distribution networks with rooftop PVs. Electric Power Systems Research, 81 (9). pp. 1805-1814.

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Link to Published Version: http://dx.doi.org/10.1016/j.epsr.2011.05.001
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Abstract

The installation of domestic rooftop photovoltaic cells (PVs) are on the rise due to feed-in tariff and changes driven by environmental concerns. Even though the increase in the PV installation is gradual, their locations and ratings are often random. Therefore, such single-phase bi-directional power flow can have adverse effect on the voltage imbalance of a three-phase distribution network. In this paper, a voltage imbalance sensitivity analysis and stochastic evaluation based on the ratings and locations of single-phase grid-connected rooftop PVs in a residential low voltage distribution network are presented. The stochastic evaluation, based on Monte Carlo method, predicts a failure index of non-standard voltage imbalance in the network in presence of PVs. Some improvement methods are discussed and a new improvement method based on PV converter control is proposed.

Item Type: Journal Article
Journal or Publication Title: Electric Power Systems Research
Page Range: pp. 1805-1814
Publisher: Elsevier B.V.
Copyright: © 2011 Elsevier B.V.
URI: http://researchrepository.murdoch.edu.au/id/eprint/32532
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