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Stochastic Optimal Operation of SOP-Assisted Active Distribution Networks with High Penetration of Renewable Energy Sources

Author

Listed:
  • Hongtao Li

    (State Grid Beijing Electric Power Research Institute, Beijing 100075, China
    These authors contributed equally to this work.)

  • Zijin Li

    (State Grid Beijing Electric Power Research Institute, Beijing 100075, China
    These authors contributed equally to this work.)

  • Bo Wang

    (State Grid Beijing Electric Power Research Institute, Beijing 100075, China
    These authors contributed equally to this work.)

  • Kai Sun

    (State Key Laboratory of Power System Operation and Control, Tsinghua University, Beijing 100084, China
    Department of Electrical Engineering, Tsinghua University, Beijing 100084, China)

Abstract

This paper introduces a mixed-integer convex model for optimizing the scheduling of soft open points (SOPs) integrated with energy storage (ES) in active distribution networks (ADNs) with high proportions of photovoltaic sources, designed to ensure zero risk of constraint violations. A stochastic optimization model for ADNs is proposed to maximize the benefits of SOPs while simultaneously minimizing system power losses, SOP power losses, voltage deviations, PV power curtailment, battery energy storage system (BESS) operation cost, and utility power purchase. Uncertainties in PV generation and load demand are considered by Monte Carlo simulation and k-means technologies. Finally, simulation cases from a 21-bus distribution network show that the curtailment of PV sources is minimized and the power fluctuations of the BESS are reduced in comparison to the case without SOP. Constraints in the nodal voltages, power outputs, energy balance, and power flow are all satisfied.

Suggested Citation

  • Hongtao Li & Zijin Li & Bo Wang & Kai Sun, 2024. "Stochastic Optimal Operation of SOP-Assisted Active Distribution Networks with High Penetration of Renewable Energy Sources," Sustainability, MDPI, vol. 16(13), pages 1-14, July.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:13:p:5808-:d:1431064
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    References listed on IDEAS

    as
    1. Cao, Wanyu & Wu, Jianzhong & Jenkins, Nick & Wang, Chengshan & Green, Timothy, 2016. "Operating principle of Soft Open Points for electrical distribution network operation," Applied Energy, Elsevier, vol. 164(C), pages 245-257.
    2. Li, Peng & Ji, Haoran & Yu, Hao & Zhao, Jinli & Wang, Chengshan & Song, Guanyu & Wu, Jianzhong, 2019. "Combined decentralized and local voltage control strategy of soft open points in active distribution networks," Applied Energy, Elsevier, vol. 241(C), pages 613-624.
    3. Zhang, Lu & Shen, Chen & Chen, Ying & Huang, Shaowei & Tang, Wei, 2018. "Coordinated allocation of distributed generation, capacitor banks and soft open points in active distribution networks considering dispatching results," Applied Energy, Elsevier, vol. 231(C), pages 1122-1131.
    4. Cao, Wanyu & Wu, Jianzhong & Jenkins, Nick & Wang, Chengshan & Green, Timothy, 2016. "Benefits analysis of Soft Open Points for electrical distribution network operation," Applied Energy, Elsevier, vol. 165(C), pages 36-47.
    Full references (including those not matched with items on IDEAS)

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