Trading mechanism of distributed shared energy storage system considering voltage regulation

He Meng, Hongjie Jia, Tao Xu, Jianhang Sun, Rujing Wang and Jie Wang

Applied Energy, 2024, vol. 374, issue C, No S030626192401287X

Abstract: In order to address the current issues of high costs and underutilization of energy storage systems (ESSs) on the distribution grids, the distributed ESS (DESS) during idle time can be aggregated to provide shared energy storage services and voltage regulation services to gain additional revenue. In order to achieve this win-win situation for both shared energy storage operators (SESO) and users, a trading mechanism based on a master-slave game has been established in this paper. The SESO takes the lead, setting power and capacity prices, and the users make decisions on biddings for ESS capacity and charging/discharging strategies based on the SESO's pricing schemes, their own loading conditions, and photovoltaic output estimations. The SESO then clears the final transaction scheme based on users' biddings while considering the network fees, operational task allocations to various DESSs, the voltage regulation costs incurred by transactions and the benefits of DESS participating in voltage regulation to ensure the system's feasibility and the economy. Finally, the efficiency and scalability of the proposed mechanism and solution is demonstrated through multi-user, multi-DESS case studies.

Keywords: Shared energy storage system; Trading mechanism; Voltage regulation; Clearing price. (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1016/j.apenergy.2024.123904

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