智能配电网分布式区域纵联保护关联域的在线确定方法

发布时间：2018-03-13 22:28

本文选题：智能配电网　切入点：区域纵联保护　出处：《电力系统自动化》2014年12期 　论文类型：期刊论文

【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]:According to the requirements of intelligent distribution network for fault detection, a distributed regional longitudinal protection system is proposed, the structure and working flow of the system are introduced, and the principle of dividing the range of regional longitudinal protection is studied. On the basis of this, an on-line method for determining the correlation domain of regional longitudinal protection is proposed. The node-branch correlation matrix is used to describe the network topology, and the transformation matrix is generated from the current topology. By multiplying two matrices, the adjacent matrix of nodes can be obtained. By analyzing the adjacent matrix, the range of regional longitudinal protection can be determined quickly and reliably. In addition, the influence of the network topology on the determination of the correlation domain of the longitudinal protection is also discussed. The effectiveness of the proposed method is verified by an example.
【作者单位】：电网智能化调度与控制教育部重点实验室(山东大学);
【基金】：国家自然科学基金资助项目(51377100) 山东省自然科学基金资助项目(ZR2013EEM029)~~
【分类号】：TM773.4

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