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ORIGINAL RESEARCH article

Front. Energy Res.
Sec. Sustainable Energy Systems
Volume 12 - 2024 | doi: 10.3389/fenrg.2024.1429256
This article is part of the Research Topic Emerging Technologies for the Construction of Renewable Energy-Dominated Power System View all 24 articles

Advanced Strategy of Grid-Forming Wind Storage Systems for Cooperative DC Power Support

Provisionally accepted
Xiaoke Zhang Xiaoke Zhang 1*Jiaqi Wang Jiaqi Wang 2Zan Gao Zan Gao 2*Shaofeng Zhang Shaofeng Zhang 1*Weijun Teng Weijun Teng 1*
  • 1 State Grid Henan Electric Power Research Institute, Zhengzhou, China
  • 2 School of Electrical Engineering, Xi'an Jiaotong University, Xi’an, China

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

    Grid-forming (GFM) wind storage systems (WSSs) possess the capability of actively building frequency and phase, enabling faster frequency response. The frequency regulation power of GFM WSSs is provided by both the rotor of wind turbine and the battery storage (BS) in parallel with DC capacitor. However, with existing control strategies, the energy storage immediately responds to both small and large grid disturbances. The frequent responses significantly decrease the lifespan of energy storage. To address this issue, a cooperative strategy between rotor and energy storage is necessary. This paper proposes an advanced strategy of GFM WSSs for cooperative DC power support. The cooperative principle is that for small disturbances, the BS is disabled and total frequency regulation power is provided by the rotor, while for large disturbances, the BS is enabled to cooperatively provide power support with the rotor. The proposed cooperative strategy can decrease the charging and discharging times of BS with a small range of rotor speed fluctuation, and then the service life of BS can be significantly extended. Simulation results validate the effectiveness and superiority of the proposed strategy.

    Keywords: Wind storage system, cooperative power support, grid forming control, Battery storage, Frequency regulation

    Received: 07 May 2024; Accepted: 14 Jun 2024.

    Copyright: © 2024 Zhang, Wang, Gao, Zhang and Teng. 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:
    Xiaoke Zhang, State Grid Henan Electric Power Research Institute, Zhengzhou, China
    Zan Gao, School of Electrical Engineering, Xi'an Jiaotong University, Xi’an, China
    Shaofeng Zhang, State Grid Henan Electric Power Research Institute, Zhengzhou, China
    Weijun Teng, State Grid Henan Electric Power Research Institute, Zhengzhou, China

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.