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ORIGINAL RESEARCH article

Front. Energy Res.
Sec. Smart Grids
Volume 12 - 2024 | doi: 10.3389/fenrg.2024.1467624
This article is part of the Research Topic Distributed Learning, Optimization, and Control Methods for Future Power Grids, Volume II View all 14 articles

Coordinated Optimization Method of Renewable Energy Sources and Energy Storage Devices Based on Synergistic Capacity Short Circuit Ratio

Provisionally accepted
Jifeng Liang Jifeng Liang 1Shiyang Rong Shiyang Rong 1Yuqi Liu Yuqi Liu 2Ye Cao Ye Cao 2*
  • 1 State Grid Hebei Electric Power Research Institute, Shijiazhuang, Hebei Province, China
  • 2 Xi'an Jiaotong University, Xi'an, China

The final, formatted version of the article will be published soon.

    The traditional short circuit ratio index does not consider the impact of energy storage devices (ESDs) and cannot be used for the collaborative optimization of ESDs and renewable energy sources (RESs). Therefore, this paper proposes a novel synergistic capacity short circuit ratio (SCSCR) index, which can reflect the interaction between multiple RESs and ESDs on each bus under different capacities. Based on the proposed SCSCR, a coordinated optimization method of RESs and ESDs is proposed. It ensures system strength while determining the optimal location and capacity proportion of RESs and ESDs. Firstly, the location and capacity proportion of RESs are obtained through optimization method because the system strength is mainly determined by RESs connection points. Secondly, the optimal location and capacity proportion of the ESDs are found under the optimal configuration of the RESs. The proposed optimization method ensures the system strength while obtaining the optimal location and optimal capacity proportion of RESs and ESDs. Finally, the simulation results verify the effectiveness of this method on the IEEE 9 bus and 39 bus systems, providing reference for the site selection and efficient operation of RESs and ESDs.

    Keywords: Synergistic Capacity Short Circuit Ratio (SCSCR), System strength, Coordinated optimization, Renewable Energy Source (RES), energy storage device (ESD)

    Received: 20 Jul 2024; Accepted: 17 Sep 2024.

    Copyright: © 2024 Liang, Rong, Liu and Cao. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Ye Cao, Xi'an Jiaotong University, Xi'an, China

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