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A Method for Determining the Power‐Flow Restriction Between the Distribution and Sub‐Transmission Systems that Reduces the Capacity of a Battery Energy Storage System
Author(s) -
Nose Jumpei,
Iioka Daisuke,
Orihara Dai
Publication year - 2021
Publication title -
ieej transactions on electrical and electronic engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 30
eISSN - 1931-4981
pISSN - 1931-4973
DOI - 10.1002/tee.23365
Subject(s) - battery (electricity) , energy storage , microgrid , renewable energy , flow battery , transmission (telecommunications) , power (physics) , engineering , automotive engineering , electrical engineering , computer science , physics , quantum mechanics
In recent years, several renewable energy power sources, such as photovoltaics (PVs) and wind power generation, have been introduced. Although the introduced PVs are undergoing improvements in the distribution system, they still encounter several challenges. One of these challenges is an increase in supply and demand fluctuations. Accordingly, the authors are currently researching a microgrid that eliminates the power flow between the distribution and sub‐transmission systems by using a battery energy‐storage system. In this paper, we propose a method for determining the restriction of power flow by solving optimization problems. Furthermore, a sensitivity analysis was performed in this study on the effects of parameters, such as the capacity of PV, load, and required capacity of a battery energy‐storage system, on the power‐flow restriction caused by the optimization problem. Finally, we discuss the results obtained from studying the conditions that enable the reduction in the required capacity of the battery energy‐storage system. © 2021 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.