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ORIGINAL RESEARCH article

Front. Energy Res.
Sec. Electrochemical Energy Storage
Volume 12 - 2024 | doi: 10.3389/fenrg.2024.1433797
This article is part of the Research Topic Optimal Scheduling of Demand Response Resources In Energy Markets For High Trading Revenue and Low Carbon Emissions View all 11 articles

Electro-thermal coupling modeling of energy storage plant considering battery physical characteristics

Provisionally accepted
Mingdian Wang Mingdian Wang 1*Peng Jia Peng Jia 1*Wenqi Wei Wenqi Wei 1*Zhihua Xie Zhihua Xie 1*Jukui Chen Jukui Chen 2Haiying Dong Haiying Dong 2*
  • 1 Other, Zhangye, China
  • 2 Lanzhou Jiaotong University, Lanzhou, Gansu, China

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

    Aiming at the current lithium-ion battery storage power station model, which cannot effectively reflect the battery characteristics, a proposed electro-thermal coupling modeling method for storage power stations considers the characteristics of the battery body by combining the equivalent circuit model and accounting for the effect of temperature on the battery. Based on the modeling of a single lithium-ion battery, the equivalent circuit model and thermal model are integrated to create the battery's electrothermal coupling model. The parameters of this coupling model are determined using the particle swarm algorithm. On this basis, the battery compartment model of the energy storage station is analyzed and verified by utilizing the circuit series-parallel connection characteristics. Subsequently, the electro-thermal coupling model of the energy storage station is established. The dual Kalman filter algorithm is utilized to simulate and validate the electric-thermal coupling model of the energy storage power station, considering ontological factors such as battery voltage, current, and temperature. The results demonstrate that the established coupling model can accurately determine the SOC and temperature of the power station. This ability allows for a more precise reflection of the battery characteristics of the energy storage station. It also validates the accuracy and effectiveness of the electric-thermal coupling model of the energy storage station. This finding is crucial for assessing the state and ensuring the safe operation of the battery system in the energy storage station.

    Keywords: Lithium ion battery 1, Energy storage plant 2, Electro-thermal coupling model 3, Parameter identification 4, SOC 5

    Received: 16 May 2024; Accepted: 27 Jun 2024.

    Copyright: © 2024 Wang, Jia, Wei, Xie, Chen and Dong. 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:
    Mingdian Wang, Other, Zhangye, China
    Peng Jia, Other, Zhangye, China
    Wenqi Wei, Other, Zhangye, China
    Zhihua Xie, Other, Zhangye, China
    Haiying Dong, Lanzhou Jiaotong University, Lanzhou, 730070, Gansu, 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.