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A Modified Bus-Split Method for Aggregating Distributed Generation Units
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DOI：10.1109/TIA.2017.2778162.png)
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Abstract
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This paper presents the development and performance testing of a modified bus-split method for aggregating interconnected distributed generation units (DGUs). The modified bus-split method is developed by introducing power-based models for interconnected DGUs. The introduced power-based models are used to replace admittance-based models used in the original bussplit method. The developed power-based models are generalized for DGUs that are interconnected to a 1 phi or a 3 phi distribution network. The modified bus-split aggregation method can be beneficial for determining possible offsets of conventional power generation, as well as improving the management of peak-demand conditions. The injected power-based bus-split aggregation method is implemented for performance testing using collected data from several wind and photovoltaic energy conversion systems, which are interconnected at different locations of the distribution network. Test results demonstrate accurate and reliable aggregation without sensitivity to the interface type, power ratings, location, voltage level at the interconnection node, and/or configuration (1 phi or 3 phi).
Keywords:
Aggregation methods
distributed generation units (DGUs)
power system operation and modeling
smart grid functions
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