基于并行协调算法的电力系统状态估计  

The Coordinational Parallel Algorithm of Power System State Estimation

作　　者：韩宇[1] 周奕[1] 周丽华 张恒 庞博[1] 

机构地区：[1]河海大学电气工程学院

出　　处：《江苏电机工程》2007年第6期11-13,共3页Jiangsu Electrical Engineering

摘　　要：在研究基于支路切割的网络分块方法基础上,提出了一种通过切割支路将网络分块的算法。该算法是将切割支路的潮流以虚拟负荷的形式作为协调变量对子网络之间的耦合影响进行处理,并有效地将大规模电力系统状态估计问题转化为若干个子网络的状态估计问题,是一种准并行算法。算例表明,该算法是有效可行的。On the basis of researching network partitioning method based on branch cutting,an algorithm which implements network partitioning by means of cutting branches is proposed.In this algorithm the power flows of the cut branches are taken as coordinational variables,which are expressed in the form of virtual loads,and then the influence of coupling among sub-networks are processed.The proposed algorithm can effectively transfer the power system state estimation of large scale power system into the power system state estimation of several sub-networks,so it is a quasi-parallel algorithm.The computation results show that this algorithm is effective and practical.

关 键 词：电力系统 状态估计 支路切割 协调变量 虚拟负荷 子网络 

分 类 号：TM744[电气工程—电力系统及自动化]