智能配电网分布式区域纵联保护关联域的在线确定方法

CONG Wei

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智能配电网分布式区域纵联保护关联域的在线确定方法

更新时间：2025-08-13

- 智能配电网分布式区域纵联保护关联域的在线确定方法
- Automation of Electric Power Systems Vol. 38, Issue 12, Pages: 67-73(2014)
- 作者机构：
  
  电网智能化调度与控制教育部重点实验室(山东大学),山东省,济南市,250061
- 作者简介：
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- DOI：
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- Published：2014
- 稿件说明：
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CONG Wei. [J]. Automation of electric power systems, 2014, 38(12): 67-73.
DOI：

CONG Wei. [J]. Automation of electric power systems, 2014, 38(12): 67-73. DOI：

摘要

针对智能配电网对故障检测的要求

提出了一种分布式区域纵联保护系统

介绍了该系统的结构和工作流程

研究了区域纵联保护范围的划分原则

并在此基础上提出了区域纵联保护关联域的在线确定方法。采用节点-支路关联矩阵描述网络拓扑结构

由当前拓扑生成变换矩阵

通过对2个矩阵进行相乘运算可得到节点邻接矩阵。对邻接矩阵进行分析

可快速、可靠地确定出区域纵联保护范围

以及各保护范围所对应的关联域。此外还讨论了网络拓扑结构变化对区域纵联保护关联域确定方法的影响。算例分析验证了所提方法的有效性。

Abstract

In view of the smart distribution grid requirements on fault detection

a distributed regional longitudinal protection system is proposed. The system structure and workflow are described

and the protection area dividing principle for the regional longitudinal protection system is studied. On this basis

an online associated area determining method for distributed regional longitudinal protection is proposed. A nodes-branch incidence matrix is adopted to describe the network topology

with a transformation matrix generated from the current nodes-branch incidence matrix. Then the adjacent matrix can be calculated by multiplying nodes-branch incidence matrix and transformation matrix. The regional longitudinal protection associated areas can be rapidly and reliably determined by analyzing this adjacent matrix. In addition

the effects of changes in the topological structure of network on the associated area determining method are discussed. Finally

a case study is given to validate the method described above.

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