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An approach for current balancing in distribution networks with rooftop PVs

Shahnia, F.ORCID: 0000-0002-8434-0525, Ghosh, A., Ledwich, G. and Zare, F. (2012) An approach for current balancing in distribution networks with rooftop PVs. In: 2012 IEEE Power and Energy Society General Meeting, 22 - 26 July 2012, San Diego, CA

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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.

Item Type: Conference Paper
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