李吉侗, 王洲, 达紫祺, 任彦辉, 金怡芳, 周斌. 计及恶劣天气时空相关性的弹性配电网储能电站多层规划方法[J]. 电力系统保护与控制, 2023, 51(9): 128-137. DOI: 10.19783/j.cnki.pspc.221212
引用本文: 李吉侗, 王洲, 达紫祺, 任彦辉, 金怡芳, 周斌. 计及恶劣天气时空相关性的弹性配电网储能电站多层规划方法[J]. 电力系统保护与控制, 2023, 51(9): 128-137. DOI: 10.19783/j.cnki.pspc.221212
LI Jitong, WANG Zhou, DA Ziqi, REN Yanhui, JIN Yifang, ZHOU Bin. Multi-level planning method of energy storage stations for resilient distribution networks considering spatio-temporal correlation of severe weather[J]. Power System Protection and Control, 2023, 51(9): 128-137. DOI: 10.19783/j.cnki.pspc.221212
Citation: LI Jitong, WANG Zhou, DA Ziqi, REN Yanhui, JIN Yifang, ZHOU Bin. Multi-level planning method of energy storage stations for resilient distribution networks considering spatio-temporal correlation of severe weather[J]. Power System Protection and Control, 2023, 51(9): 128-137. DOI: 10.19783/j.cnki.pspc.221212

计及恶劣天气时空相关性的弹性配电网储能电站多层规划方法

Multi-level planning method of energy storage stations for resilient distribution networks considering spatio-temporal correlation of severe weather

  • 摘要: 针对恶劣天气下配电网应对极端事故的系统弹性提升问题,提出了计及复合自然灾害时空相关性的配电网储能电站多层规划方法。首先建立了恶劣天气下考虑暴雨强度与风速相关性的联合灾害强度概率分布模型,通过对复合灾害强度分布特征与配电网元件运行风险之间的多维时空相关性分析,构建了计及复合自然灾害时空相关性的配电网故障风险模型。其次提出了复合灾害天气下提升配电网运行弹性的储能电站多层规划策略,构建了考虑灾害时空分布特征的储能配置-风险建模-配网调度的储能电站规划模型架构,并基于Benders分解将其转化为三层混合整数非线性规划问题进行高效求解。通过典型配电网的仿真测试和对比分析可知,所提方法能够有效提升恶劣天气下配电网应对故障风险的运行弹性和恢复能力,保障灾害事件下配网重要负荷的可靠供电。

     

    Abstract: This paper proposes a multi-level planning method for energy storage stations considering the spatial-temporal correlation of compound natural disasters. This is to improve the system resilience of a distribution network in severe weather. First, a joint disaster intensity probability distribution model considering the correlation between rainstorm intensity and wind speed in severe weather is established. Through the multi-dimensional spatio-temporal correlation analysis between the distribution characteristics of composite disaster intensity and the operational risk of distribution network components, a distribution network fault risk model considering the spatio-temporal correlation of composite natural disasters is constructed. Second, a multi-level planning strategy of energy storage power station to improve the operational flexibility of a distribution network under complex disaster weather is proposed. A planning model framework of energy storage power station considering the spatial and temporal distribution characteristics of disasters, including energy storage configuration, risk modeling and distribution network scheduling, is constructed. Based on Benders decomposition, the framework is transformed into a three-level mixed integer nonlinear programming problem for efficient solution. Through a simulation test and comparative analysis of typical distribution networks, it can be seen that the proposed method can effectively improve the operational flexibility and recovery ability of distribution networks to deal with fault risks in severe weather, and ensure the reliable power supply of important loads of distribution networks when there are disasters.

     

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