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Adaptive State-of-Charge Control Strategy for Hybrid Energy Storage System Based on Grid-Forming Converter
ID：50 View Protection：ATTENDEE Updated Time：2024-08-15 10:47:26 Hits：276 Poster Presentation

Start Time：Pending（Asia/Shanghai）

Duration：Pending

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Abstract
At present, Grid-Forming (GFM) control is recognized as the most promising control technology for grid-connected converters. The energy provided by the GFM converters for grid frequency support is mainly sourced from energy storage (ES). Hybrid Energy Storage (HES) systems have the potential to combine the advantages of different types of ES, thereby enhancing the frequency response and inertia emulation capabilities. Nevertheless, ES may encounter State-of-Charge (SOC) limit issues in practice. This paper focuses on the control of the HES system based on GFM converter (GFM-HES). An adaptive SOC control strategy is proposed. On one hand, closed-loop control of the Supercapacitor terminal voltage is employed to achieve the fast SOC recovery. On the other hand, adaptive SOC control for battery is adopted to prevent it from entering overcharge and overdischarge zone. The simulation results verify effectiveness of the proposed control strategy.
Keywords
battery,grid-forming,Hybrid Energy Storage,SOC control,Supercapacitor
Speaker
Bowen Cui
Graduate student School of Electrical and Electronic Engineering；Huazhong University of Science and Technology

Submission Author
Bowen Cui School of Electrical and Electronic Engineering；Huazhong University of Science and Technology
Changsong Chen Huazhong University of Science and Technology；School of Electrical and Electronic Engineering
Lin Gan Huazhong University of Science and Technology；School of Electrical and Electronic Engineering
Xiayan Li Huazhong University of Science and Technology；School of Electrical and Electronic Engineering
Yuanhao Zhong Huazhong University of Science and Technology；School of Electrical and Electronic Engineering
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Important Date

  • Conference Date

    Nov 06

    2024

    to

    Nov 08

    2024

  • Sep 15 2024

    Draft paper submission deadline

  • Nov 08 2024

    Registration deadline

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Huazhong University of Science and Technology
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