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A Local Control Strategy for Voltage Fluctuation Suppression in a Flexible Interconnected Distribution Station Area Based on Soft Open Point

Author

Listed:
  • Zhichun Yang

    (Electric Power Research Institute, State Grid Hubei Electric Power Co., Ltd., Wuhan 430077, China)

  • Fan Yang

    (Electric Power Research Institute, State Grid Hubei Electric Power Co., Ltd., Wuhan 430077, China)

  • Huaidong Min

    (Electric Power Research Institute, State Grid Hubei Electric Power Co., Ltd., Wuhan 430077, China)

  • Yu Shen

    (Electric Power Research Institute, State Grid Hubei Electric Power Co., Ltd., Wuhan 430077, China)

  • Xu Tang

    (School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China)

  • Yun Hong

    (School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China)

  • Liang Qin

    (School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China)

Abstract

Fluctuations in the output power of a high penetration distributed generation (DG) will result in severe voltage fluctuations/violations in the power distribution station area (DSA). This paper proposes the use of Soft Open Point (SOP) for DSA interconnection to alleviate voltage violations and frequent fluctuations. Firstly, the typical topology of a flexible interconnected DSA is introduced, and then the correlation between active/reactive power fluctuations and voltage fluctuations in DSA is analyzed, according to which a local control strategy is proposed to achieve voltage control by relying only on the local electrical information of the nodes connected to the SOP. Finally, the effectiveness of the proposed control strategy is verified by simulation case. The simulation results show that the voltage fluctuation caused by the DG output power fluctuation can be suppressed within tens of milliseconds through the control strategy. This strategy greatly reduces the communication burden and has good real-time performance. It can be used as an SOP control strategy under conditions of communication failure or to realize a plug-and-play SOP, which has significant engineering importance for solving the voltage violations and frequent fluctuations in DSA and improving the consumption capacity of DGs.

Suggested Citation

  • Zhichun Yang & Fan Yang & Huaidong Min & Yu Shen & Xu Tang & Yun Hong & Liang Qin, 2023. "A Local Control Strategy for Voltage Fluctuation Suppression in a Flexible Interconnected Distribution Station Area Based on Soft Open Point," Sustainability, MDPI, vol. 15(5), pages 1-13, March.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:5:p:4424-:d:1085052
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    References listed on IDEAS

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    1. Zhenshan Zhu & Dichen Liu & Qingfen Liao & Fei Tang & Jun Jason Zhang & Huaiguang Jiang, 2018. "Optimal Power Scheduling for a Medium Voltage AC/DC Hybrid Distribution Network," Sustainability, MDPI, vol. 10(2), pages 1-22, January.
    2. 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.
    3. 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.
    4. 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.
    5. Li, Peng & Ji, Jie & Ji, Haoran & Song, Guanyu & Wang, Chengshan & Wu, Jianzhong, 2020. "Self-healing oriented supply restoration method based on the coordination of multiple SOPs in active distribution networks," Energy, Elsevier, vol. 195(C).
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    Cited by:

    1. Xu Tang & Liang Qin & Zhichun Yang & Xiangling He & Huaidong Min & Sihan Zhou & Kaipei Liu, 2023. "Optimal Scheduling of AC–DC Hybrid Distribution Network Considering the Control Mode of a Converter Station," Sustainability, MDPI, vol. 15(11), pages 1-17, May.

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