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An approach for current balancing in distribution networks with rooftop PVs

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Open access
Authors
Shahnia, Farhad
Ghosh, A.
Ledwich, G.
Zare, F.
Date
2012
Type
Conference Paper

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Citation
Shahnia, Farhad and Ghosh, Arindam and Ledwich, Gerard and Zare, Firuz. 2012. An approach for current balancing in distribution networks with rooftop PVs, in IEEE Power and Energy Society General Meeting 2012, Jul 22-26 2012, San Diego, USA: IEEE Power and Energy Society.
Source Title
Proceeding of IEEE Power and Energy Society General Meeting 2012
Source Conference
IEEE Power and Energy Society General Meeting 2012
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Abstract

Current unbalance is a significant power quality problem in distribution networks. This problem increases further with the increased penetration of single-phase photovoltaic cells. In this paper, a new approach is developed for current unbalance reduction in medium voltage distribution networks. The method is based on utilization of three single-phase voltage source converters connected in delta configuration between the phases. Each converter is controlled to function as a varying capacitor. The combination of the load and the compensator will result in a balanced load with unity power factor. The efficacy of the proposed current unbalance reduction concept is verified through dynamic simulations in PSCAD/EMTDC.