Abstract
A DC microgrid is a novel power system using DC distribution in order to provide superhigh-quality electric power. The DC distribution system is suitable for DC-output distributed generation such as photovoltaic and fuel cells, and energy storage devices such as batteries and electric double layer capacitors. Power is distributed through a DC distribution line and converted to the required AC or DC voltage by converters placed near the loads. Load-side single phase converters are connected through transformers in order to share active and reactive power. In this paper, a power sharing control scheme is proposed, and the power sharing characteristics are demonstrated by experimental results. © 2011 Wiley Periodicals, Inc. Electr Eng Jpn, 176(1): 55–64, 2011; Published online in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/eej.21052
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