Predicting Voltage Unbalance Impacts of Plug-in Electric Vehicles Penetration in Residential Low-voltage Distribution Networks

Plug-in electric vehicles will soon be connected to residential distribution networks in high quantities and will add to already overburdened residential feeders. However, as battery technology improves, plug-in electric vehicles will also be able to support networks as small distributed generation...

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Main Authors: Shahnia, Farhad, Ghosh, Arindam, Ledwich, G., Zare, F.
Format: Journal Article
Published: Taylor & Francis Inc. 2013
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/31622
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author Shahnia, Farhad
Ghosh, Arindam
Ledwich, G.
Zare, F.
author_facet Shahnia, Farhad
Ghosh, Arindam
Ledwich, G.
Zare, F.
author_sort Shahnia, Farhad
building Curtin Institutional Repository
collection Online Access
description Plug-in electric vehicles will soon be connected to residential distribution networks in high quantities and will add to already overburdened residential feeders. However, as battery technology improves, plug-in electric vehicles will also be able to support networks as small distributed generation units by transferring the energy stored in their battery into the grid. Even though the increase in the plug-in electric vehicle connection is gradual, their connection points and charging/discharging levels are random. Therefore, such single-phase bidirectional power flows can have an adverse effect on the voltage unbalance of a three-phase distribution network. In this article, a voltage unbalance sensitivity analysis based on charging/discharging levels and the connection point of plug-in electric vehicles in a residential low-voltage distribution network is presented. Due to the many uncertainties in plug-in electric vehicle ratings and connection points and the network load, a Monte Carlo-based stochastic analysis is developed to predict voltage unbalance in the network in the presence of plug-in electric vehicles. A failure index is introduced to demonstrate the probability of non-standard voltage unbalance in the network due to plug-in electric vehicles.
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spelling curtin-20.500.11937-316222018-01-22T07:14:20Z Predicting Voltage Unbalance Impacts of Plug-in Electric Vehicles Penetration in Residential Low-voltage Distribution Networks Shahnia, Farhad Ghosh, Arindam Ledwich, G. Zare, F. voltage unbalance plug-in electric vehicle sensitivity analysis distribution network stochastic analysis Plug-in electric vehicles will soon be connected to residential distribution networks in high quantities and will add to already overburdened residential feeders. However, as battery technology improves, plug-in electric vehicles will also be able to support networks as small distributed generation units by transferring the energy stored in their battery into the grid. Even though the increase in the plug-in electric vehicle connection is gradual, their connection points and charging/discharging levels are random. Therefore, such single-phase bidirectional power flows can have an adverse effect on the voltage unbalance of a three-phase distribution network. In this article, a voltage unbalance sensitivity analysis based on charging/discharging levels and the connection point of plug-in electric vehicles in a residential low-voltage distribution network is presented. Due to the many uncertainties in plug-in electric vehicle ratings and connection points and the network load, a Monte Carlo-based stochastic analysis is developed to predict voltage unbalance in the network in the presence of plug-in electric vehicles. A failure index is introduced to demonstrate the probability of non-standard voltage unbalance in the network due to plug-in electric vehicles. 2013 Journal Article http://hdl.handle.net/20.500.11937/31622 10.1080/15325008.2013.834004 Taylor & Francis Inc. fulltext
spellingShingle voltage unbalance
plug-in electric vehicle
sensitivity analysis
distribution network
stochastic analysis
Shahnia, Farhad
Ghosh, Arindam
Ledwich, G.
Zare, F.
Predicting Voltage Unbalance Impacts of Plug-in Electric Vehicles Penetration in Residential Low-voltage Distribution Networks
title Predicting Voltage Unbalance Impacts of Plug-in Electric Vehicles Penetration in Residential Low-voltage Distribution Networks
title_full Predicting Voltage Unbalance Impacts of Plug-in Electric Vehicles Penetration in Residential Low-voltage Distribution Networks
title_fullStr Predicting Voltage Unbalance Impacts of Plug-in Electric Vehicles Penetration in Residential Low-voltage Distribution Networks
title_full_unstemmed Predicting Voltage Unbalance Impacts of Plug-in Electric Vehicles Penetration in Residential Low-voltage Distribution Networks
title_short Predicting Voltage Unbalance Impacts of Plug-in Electric Vehicles Penetration in Residential Low-voltage Distribution Networks
title_sort predicting voltage unbalance impacts of plug-in electric vehicles penetration in residential low-voltage distribution networks
topic voltage unbalance
plug-in electric vehicle
sensitivity analysis
distribution network
stochastic analysis
url http://hdl.handle.net/20.500.11937/31622