基于社团结构特性的电网快速分区研究  

Research on the 220 kV Power Grid Partitioning Based on the Characteristics of Community Structure

作　　者：常学佳 郑焕坤[1] 冯任卿 张倩茅[3] 习朋[3] 常鲜戎[1] 

机构地区：[1]华北电力大学电气与电子工程学院,河北保定071003 [2]河北省电力勘测设计院,河北石家庄050000 [3]国网河北省电力公司经济技术研究院,河北石家庄050000

出　　处：《电力科学与工程》2017年第5期24-28,共5页Electric Power Science and Engineering

基　　金：河北省电力公司2014年综合计划(kj2014-037)

摘　　要：短路水平过高问题是影响电网安全运行的诸多问题之一,分区法是一种较为经济有效的限制短路电流的方法。针对电网的分区方法进行了研究,提出了快速GN(分裂)算法。结合实际电网分区断面负载率高、电气距离较大的特点,定义了考虑线路负载率和导纳参数的综合加权边介数指标。为提升运算速度,文章将拓扑化后的电网模型利用广义源节点思想进行了简化。算法以500 kV主变负载均衡度和短路电流作为分区方案的评价指标。为验证所提算法的有效性,采用该算法对某地区220 kV及以上电压等级电网进行了分区,最终将该电网分成了3个社团,短路电流和主变负载均衡度计算结果表明通过该分区方案可以有效降低短路水平且主变负载均衡。The problem of short circuit level is one of the problems that affect the safe operation of the power network. The practice results show that the zoning method is an economical and effective method to limit the short circuit current. This paper studies the partition method of power network. The improved GN algorithms can not only effectively partition the topology network, but also take some characteristics of the actual power grid into account fully. Based on the com- munity structure in complex network theory, a new partition method is proposed. This method is faster in calculation with a simplified model. At the same time, in the process of checking, some practical problems are considered. The calculated results of the example show that the partition scheme formed by this method is reliable and feasible.

关 键 词：电网分区 社团结构 GN分裂算法 综合加权边介数 

分 类 号：TM711[电气工程—电力系统及自动化]