摘要
随着分布式电源的不断接入配电网运行,提出一种适应于分布式电源接入趋势的三相不平衡配电网潮流计算分析方法。针对于分布式电源大量并网运行的需求,首先分析了分布式电源接入对整个配电网络中潮流分布的影响,并在此基础上建立含有分布式电源的三相不平衡配电网潮流计算模型。然后根据建立的潮流计算模型,采用牛顿-拉夫逊迭代方法进行求解,同时给出三相不平衡配电网中节点导纳矩阵和雅可比矩阵的分析。最后通过在仿真系统进行算例分析,验证所提出潮流计算方法的正确性和有效性。
Due to the increasing penetration of distributed generations(DGs)in distribution networks,a power flow calculation method for unbalanced distribution networks is proposed considering the access of DGs.Firstly,the influence of power flow caused by the high penetration of DGs is analyzed,and the three-phase power flow calculation model in the three-phase unbalanced distribution network is established.Then,the Newton-Raphson iterative method is used to solve the established power flow mathematical model,and the analysis of node admittance matrix and Jacobi matrix in unbalanced distribution network is provided.Finally,the effectiveness of the proposed power flow calculation method is verified by the case studies and discussions.
作者
徐玉韬
谈竹奎
袁旭峰
谢百明
陈玉峰
吴恒
Xu Yutao;Tan Zhukui;Yuan Xufeng;Xie Baiming;Chen Yufeng;Wu Heng(Electric Power Research Institute of Guizhou Power Grid Co.,Ltd.,Guiyang 550002,China;Beijing Sifang Automation Co.,Ltd.,Beijing 100085,China)
出处
《电测与仪表》
北大核心
2019年第13期27-32,80,共7页
Electrical Measurement & Instrumentation
基金
国家自然科学基金资助项目(51667007)
中国南方电网公司重点科技项目(GZKJQQ00000417)
关键词
分布式电源
三相不平衡配电网
牛顿-拉夫逊法
雅可比矩阵
潮流计算
distributed generations
unbalanced distribution networks
Newton-Raphson method
Jacobi matrix
power flow calculation
