一种配电网重构中潮流计算序列的快速建立方法  

A rapid establishment method of power flow calculation sequence for reconfiguration of distribution networks

作　　者：张炳达[1] 李广福[2] 

机构地区：[1]电力系统仿真控制教育部重点实验室(天津大学),天津300072 [2]济南供电公司,山东济南250011

出　　处：《电力系统保护与控制》2010年第19期27-32,共6页Power System Protection and Control

摘　　要：为了正确地计算10kV配电网的线损和优化网络结构,一个精确的配电网模型是不可缺少的。针对精确模型的潮流计算序列庞大和创建费时的问题,把分段开关之间的所有负荷简化为一个广义节点,用潮流计算子序列组描述其内部结构,提出了一种按区存储的潮流计算序列创建法。针对阶梯式负荷,对支路交换法中的启发式规则作了修改,设计了相应的潮流计算序列修改法。这些方法已成功地应用于河南省商丘供电局的10kV配网运行优化与辅助决策系统中。An accurate model of the distribution network is indispensable to calculate line loss and optimize the structure correctly for a 10 kV distribution network.Because the power flow calculation sequence of the model is huge and time-consuming for creating,all loads between breakers are simplified by a generalized node,and its interior structure is described with the help of a group of the power flow calculation subsequences.A kind of method for creating power flow calculation sequence by district is proposed.At the same time,in view of multistep loads,the heuristic rules of the branch-exchange algorithm are modified and the method of revising power flow calculation sequence is designed.These suggestions have been adopted successfully in the system of operation optimization and assistant decision of the 10 kV distribution network,which is located in Shangqiu power supply bureau,Henan Province.

关 键 词：网络重构 潮流计算 拓扑搜索 支路交换法 启发式规则 

分 类 号：TM744[电气工程—电力系统及自动化]