一种含弱环和分布式电源的配电网潮流计算方法

摘要

针对传统潮流算法已不再适用多源多回路配电网络问题,利用配电网网络结构特点,在道路矩阵基础上采用新的解环方法对含弱环的系统进行研究；为解决接入分布式电源后计算精度及收敛困难等问题,采用区别于其他处理PV节点的新方法,计及多种负荷并归纳总结其对潮流计算中研究变量的影响,进一步提高算法的精确性.所提新潮流算法对IEEE33节点配电系统进行仿真计算,结果表明:在系统节点电压计算值更精确的同时,迭代次数得到很好的控制.说明所提方法对计算含分布式电源及环网的配电系统的可行性和有效性.%Focusing on the traditional power flow method is no longer applicable for a complex,multi-source and multi-loop network,a new method of breaking loop network was proposed with path matrix according to the structural characteristics of distribution network.To solve the problem of calculation accuracy and convergence,this paper presents new method of handling PV nodes.Taking into account several loads and summarizing the effects of flow calculation parameters make the algorithm more accuracy.In this paper,the proposed algorithm which is more conducive to calculate and more facilitated to convergence was tested by 33-bus systems and compared the results to verify the correctness and validity about the power flow calculation in distribution network considering the impact of load diversity with distributed generation.