第42卷第7期电力系统保护易控制Vol.42 No.7 2014年4月1日Power SystemProtection andControl Apr.1, 2014
大电网整定计算中缓冲网的自动生成
王晓菠，温靖华”，李崇瞻，罗美玲”，宋玮，龚仁敏” (1.华北电力大学电气与电子工程学院，河北保定071003；2.宁夏电力调度控制中心，宁夏银川750001； 3.北京中恒博瑞数字电力科技有限公司，北京100096) 摘要：大电网局部区域整定计算时，采用全网模型耗时过长，如何快速缩小计算时的电网规模成为重要的研究课题。
根据复 杂网络理论，形成带权电力网络。
配合区域和约束区域构成了整定计算缓冲网。
确定整定计算范围后，根据一级远后备保护 使用方法，确定边界支路相邻支路及末端节点为配合区域。
利用最短电气路径确定边界支路、配合支路的最小环网结构，利 用边界节点自阻抗变化率确定厂站范围，最小环网结构和厂站范围组成了约束区域。
最后通过深度搜索/回溯技术实现了缓 冲网的自动生成。
关键词：整定计算；缓冲网；运行方式；带权电力网络；保护配合 Automatic generation of buffer subsystemfor setting calculation in large power system WANG Xiao-bo', WEN Jing-hua², LI Chong-zhan, LUO Mei-ling, SONG Wei, GONG Ren-min? (1. School of Electrical and Electronic Engineering, North China Electric Power University, Baoding 071003, China; 2. Ningxia Electric Power Dispatching and Control Centre, Yinchuan 750001, China; 3. Beijing Join Bright Digital Power Technology Limited Company, Beijing 100096, China) Abstract: It is time consuming to use the entire network to conduct setting calculation for local area. The way to narrow down the grid size for setting calculation bees an important subject.Based on the plex network theory, the weighted power network model is formed. The buffer subsystem for setting calculation consists of the coordination region and constraint region. After determining the scope of seting calculation, we include the adjacent branches of boundaries and its end nodes in the coordination region according to remote backup protection.Furthermore, the shortest electrical path is used to determine the minimum ring network of boundaries and coordination branches. Meanwhile the substation scope is determined by the self-impedance variation rate of boundary nodes. The constraint region consists of the smallest ring structures and substation scope. Under these, the depth first search and backtracking technique are applied to form the buffer subsystem automatically. Key words: seting calculation; buffer subsystem; operation mode; weight...
