Risk Assessment of Urban Power Distribution Equipment Under Rain and Flood Hazards

WU Changjiang; LI Zhiqiang; LI Bin; YUAN Guoqing; ZHU Jing; SU Sheng

doi:10.3969/j.issn.1008-0198.2025.04.003

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Risk Assessment of Urban Power Distribution Equipment Under Rain and Flood Hazards

更新时间：2025-12-08

- Risk Assessment of Urban Power Distribution Equipment Under Rain and Flood Hazards
- Vol. 45, Issue 4, Pages: 15-20(2025)
- 作者机构：
  
  1. 国网湖南省电力有限公司株洲供电分公司,湖南,株洲,412000
  2. 电网防灾减灾全国重点实验室（长沙理工大学）,湖南,长沙,410114
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.1008-0198.2025.04.003
  CLC： TM727
- Published Online：05 September 2025，
  
  Published：05 September 2025
- 稿件说明：
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吴长江, 李志强, 李彬, 袁国庆, 朱静, 苏盛. 雨涝灾害下城市配电设备风险评估[J]. 湖南电力, 2025, 45(4): 15-20.

WU Changjiang, LI Zhiqiang, LI Bin, et al. Risk Assessment of Urban Power Distribution Equipment Under Rain and Flood Hazards[J]. 2025, 45(4): 15-20.
吴长江, 李志强, 李彬, 袁国庆, 朱静, 苏盛. 雨涝灾害下城市配电设备风险评估[J]. 湖南电力, 2025, 45(4): 15-20. DOI： 10.3969/j.issn.1008-0198.2025.04.003.

WU Changjiang, LI Zhiqiang, LI Bin, et al. Risk Assessment of Urban Power Distribution Equipment Under Rain and Flood Hazards[J]. 2025, 45(4): 15-20. DOI： 10.3969/j.issn.1008-0198.2025.04.003.

摘要

城市配电设备因供电半径小、选址灵活性不足等原因

易在雨涝灾害中受淹停电。以株洲市为例

提出一种城市配电设备的风险评估方法。首先

结合目标区域暴雨强度公式计算多年一遇短时降雨量

并基于二维水动力模型仿真模拟得到不同重现期的淹没范围及淹没深度。然后

结合地面配电设备设计标准对研究区域进行风险评估

并对不同区域划分风险等级

绘制株洲市区配电设备淹没风险等级地图

以识别城市电网薄弱区域。研究可为城市电网系统制定差异化防护策略提供量化依据

同时为极端暴雨灾害下的电力设施韧性提升提供科学支撑。

Abstract

Urban power distribution equipment with small power supply radius and insufficient site selection flexibility is prone to flooding and power outage in rain and flood disasters. Taking Zhuzhou city as an example

a risk assessment method for urban power distribution equipment is proposed. First of all

the short-term rainfall of one in many years is calculated by combining the formula of heavy rainfall intensity in the target area

and the inundation range and inundation depth of different recurrence periods are obtained by simulation based on the two-dimensional hydrodynamic model. Then

the risk assessment of the study area is carried out by combining the design standards of ground power distribution equipment

and different areas are classified into risk levels. A map of the inundation risk level of power distribution equipment in Zhuzhou city is drawn to identify the weak areas of the urban power grid. The study can provide a quantitative basis for the development of differentiated protection strategies for the urban power grid system

as well as scientific support for resilience enhancement of power facilities under extreme rainstorm disasters.

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references

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