| 引用本文: | 田果,黄小莉.含光伏电源配电网的改进矩阵保护算法[J].电力系统保护与控制,2014,42(17):79-83.[点击复制] |
| TIAN Guo,HUANG Xiao-li.An improved matrix protection algorithm with distribution network including photovoltaic power[J].Power System Protection and Control,2014,42(17):79-83[点击复制] |
|
| 摘要: |
| 为了解决分布式电源并网给配电网保护带来的问题，针对含光伏电源的配电网，给出一种基于广域保护的故障区域定位矩阵算法。利用智能电子设备(IED)收集节点电流信息，根据电流综合幅值判定故障搜索方向，形成故障区域搜索正方向矩阵和反方向矩阵。保护算法在矩阵修订过程中对网络拓扑结构的中间节点和边缘节点不作区分，使用同样的修订方法，简化了算法，对不断变化的网络拓扑结构有适应性，并且在判据中能清楚分辨这两类节点。算例分析结果表明，改进的矩阵保护算法对故障的区域定位是有效的。 |
| 关键词: 光伏电源 故障区域定位 广域保护 搜索方向 中间节点 边缘节点 |
| DOI： |
| 投稿时间：2013-12-02修订日期：2014-04-10 |
| 基金项目:西华大学研究生创新基金（yljj2014083）;四川省教育部春晖计划基金（Z2011089） |
|
| An improved matrix protection algorithm with distribution network including photovoltaic power |
| TIAN Guo,HUANG Xiao-li |
| (School of Electrical and Information Engineering, Xihua University, Chengdu 610039, China) |
| Abstract: |
| In order to solve the problems that distributed power brings to the protection of distribution network, aiming at distribution network including photovoltaic power, an algorithm based on wide-area protection matrix algorithm is presented to locate fault region. Current information of the node is collected by the IED, search direction is determined by the comprehensive amplitude of the fault current, both matrix of search direction and matrix of opposite search direction are given. In the process of revising the matrix, this algorithm will not make a distinction between intermediate node and edge nodes which belong to network topology, the same revision method makes the algorithm simple, it is adaptive for the changing network topology and clear to distinguish these two nodes through criteria. The results of case study show that the improved matrix protection algorithm for fault protection area location is effective. |
| Key words: photovoltaic power regional fault location wide area protection search direction intermediate node edge node |
