View Item 

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

Access Status
Open access
Authors
Shahnia, Farhad
Majumder, R.
Ghosh, A.
Ledwich, G.
Zare, F.
Date
2011
Type
Journal Article

Metadata
Show full item record
Citation
Shahnia, Farhad and Majumder, Ritwik and Ghosh, Arindam and Ledwich, Gerard and Zare, Firuz. 2011. Voltage imbalance analysis in residential low voltage distribution networks with rooftop PVs. Electric Power Systems Research. 81 (9): pp. 1805-1814.
Source Title
Electric Power Systems Research
DOI
ISSN
Remarks

NOTICE: This is the author’s version of a work that was accepted for publication in Electric Power Systems Research. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Electric Power Systems Research, Vol. 81, Issue 9 (2011). http://doi.org/10.1016/j.epsr.2011.05.001

URI
Collection
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.