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Economic Optimization of Hybrid Energy Storage Capacity for Wind Power Based on Coordinated SGMD and PSO

Author

Listed:
  • Kai Qi

    (School of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot 010051, China)

  • Keqilao Meng

    (School of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot 010051, China)

  • Xiangdong Meng

    (Huaneng Wulatezhongqi New Energy Power Generation Co., Ltd., Bayannur 015200, China)

  • Fengwei Zhao

    (Huaneng Wulatezhongqi New Energy Power Generation Co., Ltd., Bayannur 015200, China)

  • Yuefei Lü

    (Huaneng Wulatezhongqi New Energy Power Generation Co., Ltd., Bayannur 015200, China)

Abstract

Under the dual carbon objectives, wind power penetration has accelerated markedly. However, the inherent volatility and insufficient peak regulation capability in energy storage allocation hamper efficient grid integration. To address these challenges, this paper presents a hybrid storage capacity configuration method that combines Symplectic Geometry Mode Decomposition (SGMD) with Particle Swarm Optimization (PSO). SGMD provides fine-grained, multi-scale decomposition of load–power curves to reduce modal aliasing, while PSO determines globally optimal ESS capacities under peak-shaving constraints. Case-study simulations showed a 25.86% reduction in the storage investment cost compared to EMD-based baselines, maintenance of the state of charge (SOC) within 0.3–0.6, and significantly enhanced overall energy management efficiency. The proposed framework thus offers a cost-effective and robust solution for energy storage at renewable energy plants.

Suggested Citation

  • Kai Qi & Keqilao Meng & Xiangdong Meng & Fengwei Zhao & Yuefei Lü, 2025. "Economic Optimization of Hybrid Energy Storage Capacity for Wind Power Based on Coordinated SGMD and PSO," Energies, MDPI, vol. 18(10), pages 1-14, May.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:10:p:2417-:d:1651605
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    References listed on IDEAS

    as
    1. Yongqian Liu & Yanhui Qiao & Shuang Han & Yanping Xu & Tianxiang Geng & Tiandong Ma, 2021. "Quantitative Evaluation Methods of Cluster Wind Power Output Volatility and Source-Load Timing Matching in Regional Power Grid," Energies, MDPI, vol. 14(16), pages 1-14, August.
    2. Liang, Yang & Zhang, Dongqin & Zhang, Jize & Hu, Gang, 2024. "A state-of-the-art analysis on decomposition method for short-term wind speed forecasting using LSTM and a novel hybrid deep learning model," Energy, Elsevier, vol. 313(C).
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