Capacity design of distributed battery storage for controlling power variation with large-scale photovoltaic sources in distribution network

We developed a method for the design of distributed battery storage capacity for evaluating battery storage with demand–supply imbalance control in distribution systems to which large-scale home photovoltaic power generators are connected. The proposed method is based on a linear storage capacity minimization model with design-basis demand load and photovoltaic output time series subject to battery management constraints. We experimentally applied the design method to a sample distribution system with substation storage and terminal area storage. The developed method successfully reveals the charge–discharge schedule and stored power variation for design-basis demand load and photovoltaic output, satisfies the peak-cut requirement, and pinpoints the minimum distributed storage capacity. © 2012 Wiley Periodicals, Inc. Electr Eng Jpn, 181(4): 29–37, 2012; Published online in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/eej.22324