湖南电力 ›› 2025, Vol. 45 ›› Issue (4): 15-20.doi: 10.3969/j.issn.1008-0198.2025.04.003

• 专家专栏:电力防灾减灾 • 上一篇    下一篇

雨涝灾害下城市配电设备风险评估

吴长江1, 李志强1, 李彬2, 袁国庆2, 朱静2, 苏盛2   

  1. 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
  • 收稿日期:2025-05-16 修回日期:2025-06-05 出版日期:2025-08-25 发布日期:2025-09-05
  • 通信作者: 苏盛(1975),男,教授,博士生导师,研究方向为低压用电安全和电力气象灾害。
  • 作者简介:吴长江(1989),男,高级工程师,研究方向为配电网运检及可靠性管理。李志强(1991),男,工程师,从事配电网运检工作。
  • 基金资助:
    国家自然科学智能电网联合基金项目(U1966207)

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

WU Changjiang1, LI Zhiqiang1, LI Bin2, YUAN Guoqing2, ZHU Jing2, SU Sheng2   

  1. 1. State Grid Zhuzhou Power Supply Company, Zhuzhou 412000, China;
    2. State Key Laboratory of Disaster Prevention & Reduction for Power Grid (Changsha University of Science & Technology), Changsha 410114, China
  • Received:2025-05-16 Revised:2025-06-05 Online:2025-08-25 Published:2025-09-05

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。

关键词: 雨涝灾害, 重现期, 配电设备, 风险评估

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.

Key words: rain and flood hazards, recurrence period, power distribution equipment, risk assessment

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