电力系统及其自动化学报2016，Vol.28Issue(9)：36-41,6.DOI:10.3969/j.issn.1003-8930.2016.09.006
求解含小阻抗支路配电网潮流的牛顿法
Newton Method for Solving Power Flow of Distribution Networks with Small Impedance Branches
摘要
Abstract
The non-convergence of Newton method for the power flow computation of distribution networks is mainly due to the ill condition of Jacobi matrix built on node admittance matrix. In this paper,two kinds of loops are defined by two kinds of links respectively,i.e.,equivalent branches of loads and branches for closing. The model of power flow is based on loop-current load-node-voltage equations,and the parameters of small impedance branches are not indepen⁃dent elements in the network matrix. Newton method is applied to solving the equations,and the Jacobi matrix based on loop-admittance matrix is well-conditioned,which ensures the convergence of computation. Different cases with branch⁃es for closing and PV nodes indicate the correctness and efficiency of the proposed method.关键词
配电网潮流计算/收敛性/回路分析/牛顿法/小阻抗支路Key words
power flow computation of distribution networks/convergence/loop analysis/Newton method/small imped-ance branches分类
信息技术与安全科学引用本文复制引用
初壮,于群英,李笑薇..求解含小阻抗支路配电网潮流的牛顿法[J].电力系统及其自动化学报,2016,28(9):36-41,6.基金项目
国家高技术研究发展计划（863计划）资助项目 （）
