Reliability assessment of active distribution networks considering fault recovery strategies

吴毓奋; 余立志; 符史坚; 王诒隆; 许环湖; 丁士凯; 吴崇玉

doi:10.3969/j.issn.1009-1831.2025.02.016

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Reliability assessment of active distribution networks considering fault recovery strategies

更新时间：2026-03-05

- Reliability assessment of active distribution networks considering fault recovery strategies
- Vol. 27, Issue 2, (2025)
- 作者机构：
  
  1. 海南电网有限责任公司五指山供电局,海南,琼海,571400
  2. 海南电网有限责任公司电动汽车服务有限公司,海南,琼海,571400
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.1009-1831.2025.02.016
  CLC：
- Published：2025
- 稿件说明：
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吴毓奋, 余立志, 符史坚, et al. Reliability assessment of active distribution networks considering fault recovery strategies[J]. 2025, 27(2).
DOI：

吴毓奋, 余立志, 符史坚, et al. Reliability assessment of active distribution networks considering fault recovery strategies[J]. 2025, 27(2). DOI： 10.3969/j.issn.1009-1831.2025.02.016.

摘要

源网荷协同调度背景下

为实现配电网可靠性的准确评估

提出一种考虑负荷恢复策略的有源配电网可靠性评估方法。首先

基于马尔可夫过程构建元件时变故障率模型以及分布式电源（distributed generator

DG）多状态模型

并基于此提出一种适用于故障重构以及孤岛划分的改进Distflow潮流模型

利用大M法对其进行线性化处理

并引入线性辐射状约束方法

将负荷恢复策略策略建模为混合整数线性规划问题（mixed-integer linear programming

MILP）。其次

对各种故障场景进行停电后果分析

实现有源配电网的可靠性评估。最后

通过IEEE标准算例分析负荷恢复策略对可靠性的影响

结果表明考虑负荷恢复策略能够有效挖掘有源配电网恢复供电能力

进一步提升供电可靠性。

Abstract

In the context of source grid load collaborative scheduling

a reliability evaluation method for active distribution networks con sidering load recovery strategies is proposed to achieve accurate assessment of distribution network reliability. Firstly

a time-varying fail ure rate model for components and a multi state model for distributed generators（DG）are constructed based on Markov processes. Based on this

an improved Distflow power flow model suitable for fault reconstruction and islanding partitioning is proposed. The model is linearized using the big M method and a linear radial constraint method is introduced to model the load recovery strategy as a mixed integer linear programming（MILP）problem. Secondly

power outage consequences analysis is conducted for various fault scenarios to achieve reliability assessment of active distribution networks. Finally

the impact of load recovery strategy on reliability was analyzed through IEEE standard examples

and the results showed that considering load recovery strategy can effectively tap into the power supply recovery capability of active distribution networks and further improve power supply reliability.

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