| 引用本文: | 袁国庆,陈超强,李 彬,等.基于二维水动力模型雨涝灾害下城市配电网差异化规划[J].电力系统保护与控制,2025,53(23):38-48.[点击复制] |
| YUAN Guoqing,CHEN Chaoqiang,LI Bin,et al.Differentiated planning of urban distribution networks under pluvial flooding based on a 2D hydrodynamic model[J].Power System Protection and Control,2025,53(23):38-48[点击复制] |
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| 摘要: |
| 近年来，极端暴雨天气频繁发生，城市内涝问题日益突出。而地面配电设备在防涝设计标准存在不足，易导致其在雨涝灾害下受淹停电。为提升配电系统抵御雨涝灾害的能力，提出了一种基于二维水动力模型的雨涝灾害下城市配电网差异化规划方法。首先，结合历史降雨数据及地理信息数据，利用广义极值分布模型计算多年一遇降雨量，并基于二维水动力模型对研究区域进行模拟仿真。其次，根据地面配电设备淹没深度，计算其失效概率，并结合混合蒙特卡洛抽样法及香农信息熵，生成并选取典型故障场景。然后，在综合考虑不同降雨重现期情景下，以抬升建设投资成本与运行失负荷损失成本之和最小为目标，构建配电网差异化规划优化模型，确定各地面配电设备的最优抬升等级。最后，通过改进的IEEE33节点系统仿真验证，结果表明，所提优化模型在显著提升配电系统雨涝灾害抵御能力的同时，有效控制了防涝改造的投资成本。 |
| 关键词: 广义极值 FloodArea 雨涝灾害 配电网 差异化规划 |
| DOI：10.19783/j.cnki.pspc.250163 |
| 投稿时间：2025-02-27修订日期：2025-06-10 |
| 基金项目:国家自然科学基金项目资助(U1966207) |
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| Differentiated planning of urban distribution networks under pluvial flooding based on a 2D hydrodynamic model |
| YUAN Guoqing1,CHEN Chaoqiang2,LI Bin1,SU Sheng1,ZHU Jing1,YANG Hongming1 |
| (1. State Key Laboratory of Disaster Prevention & Reduction for Power Grid (Changsha University of Science & Technology),
Changsha 410114, China; 2. Changsha Power Supply Branch, State Grid Hunan Electric Power Company, Changsha 410004, China) |
| Abstract: |
| In recent years, extreme rainfall events have occurred frequently, intensifying urban pluvial flooding. Due to insufficient flood-proof design standards, ground-mounted distribution equipment is highly susceptible to inundation and outages during flood events. To enhance the resilience of distribution systems against pluvial flooding, this paper proposes a differentiated planning method for urban distribution networks based on a two-dimensional (2D) hydrodynamic model. First, the generalized extreme value distribution model is used to estimate the multi-year return-period rainfall using historical rainfall data and geographic information, while the study area is simulated with the 2D hydrodynamic model. Second, the failure probability of ground-mounted distribution equipment is evaluated according to its inundation depth. Typical failure scenarios are then generated and selected by combining the hybrid Monte Carlo sampling method and Shannon’s information entropy. Then, an optimization model for differentiated distribution network planning is formulated by comprehensively considering multiple rainfall return-period scenarios, with the objective of minimizing the sum of elevation investment costs and load-loss costs. The optimal elevation level of each ground-mounted distribution device is determined accordingly. Finally, simulations based on a modified IEEE 33-bus system verify that the proposed optimization model significantly enhances the distribution system’s resilience to pluvial flooding while effectively controlling the investment cost of flood-proof retrofits. |
| Key words: generalized extreme value FloodArea pluvial flooding distribution network differentiated planning |
