| 引用本文: | 张云峰,许立雄,刘苏锐,等.城市功能视角下的地震灾害配电网韧性评估[J].电力系统保护与控制,2026,54(03):59-69.[点击复制] |
| ZHANG Yunfeng,XU Lixiong,LIU Surui,et al.Resilience assessment of distribution networks under earthquake disasters from the perspective of urban functions[J].Power System Protection and Control,2026,54(03):59-69[点击复制] |
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| 摘要: |
| 现有配电网韧性评估多从负荷损失的总量或比例出发，这种评估范式无法反映出负荷损失造成的城市社会功能损失。为此，面向城市社会功能的灾时需求，计及供水-配电-供气的运行耦合，考虑地震灾害的不确定性，提出了一种地震灾害下的配电网韧性评估方法。首先，从水电气供给充裕度、建筑物损毁严重度和城市社会功能需求紧迫度3个维度，综合评估地震灾害场景下的城市社会功能损失。其次，以城市社会功能损失最小为目标，计及配水-配电-配气网之间的耦合约束及各自的运行约束，构建配电网负荷削减模型，优化地震灾害场景下的水电气供给以最大化满足城市社会功能需求。最后，考虑震级大小与空间分布的不确定性，以城市社会功能损失期望为指标评估地震灾害下的配电网韧性。算例结果表明，所提方法能够克服现有“电力电量损失”评估的不足，更准确地刻画配电系统对城市社会功能的核心支撑作用，有效提升地震灾害下的城市社会功能水平。 |
| 关键词: 城市部门 重要度动态因子 韧性因子 负荷削减 水-电-气耦合 地震灾害概率 |
| DOI：10.19783/j.cnki.pspc.250399 |
| 投稿时间：2025-04-14修订日期：2025-05-20 |
| 基金项目:四川省科技计划项目资助(2023YFG0132) |
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| Resilience assessment of distribution networks under earthquake disasters from the perspective of urban functions |
| ZHANG Yunfeng1,XU Lixiong1,LIU Surui2,GAO Mingyu1 |
| (1. College of Electrical Engineering, Sichuan University, Chengdu 610065, China;
2. Chengdu Customs Technology Center, Chengdu 610041, China) |
| Abstract: |
| Existing distribution network resilience assessments mostly focus on the total amount or proportional of load loss, an evaluation paradigm that fails to reflect the loss of urban social functions caused by load shedding. To address this limitation, and oriented toward urban social function demands during disasters, a resilience assessment method for distribution networks under earthquake disasters is proposed by considering the operational coupling of water supply, power distribution, and gas supply systems, as well as the uncertainty of earthquake events. First, from the three dimensions of water-electricity-gas supply adequacy, severity of building damage, and urgency of urban social function demands, urban social function losses under earthquake scenarios are comprehensively assessed. Next, with the objective of minimizing urban social function loss, a load shedding model for distribution networks is formulated by incorporating the coupling constraints among water, power, and gas networks, together with their respective operational constraints. This model optimizes the supply of these resources under earthquake scenarios to best satisfy urban social function demands. Finally, considering the uncertainty in earthquake magnitude and spatial distribution, the resilience of distribution networks under earthquake disasters is evaluated using the expected urban social function loss as the metric. Case study results demonstrate that the proposed method overcomes the limitations of existing “electric power and energy loss”-based assessments, more accurately captures the core supporting role of distribution systems in urban social functions, and effectively enhances the level of urban social functions under earthquake disasters. |
| Key words: urban sector dynamic importance factor resilience factor load shedding water-electricity-gas coupling earthquake disaster probability |
