电子器件2024，Vol.47Issue(4)：1065-1072,8.DOI:10.3969/j.issn.1005-9490.2024.04.030
计及分布式光伏的三相不平衡低压配电网快速潮流计算
Fast Power Flow Calculation of Three-Phase Unbalanced Low-Voltage Distribution Network Considering Distributed Photovoltaic
摘要
Abstract
With the continuous promotion of the"Carbon Peak and Carbon Neutral"strategy,the construction of distributed photovoltaic access distribution network project is also developing rapidly.In order to meet the needs of a large number of distributed photovoltaic con-nected power grid,a fast power flow algorithm for three-phase unbalanced low-voltage distribution network considering distributed photo-voltaic is proposed.Firstly,the component model of distribution network including distributed photovoltaic is established.Secondly,upper triangular impedance matrix with power flow direction and topological parameters is proposed,which is a sparse matrix,and which improves the speed of power flow calculation.Thirdly,in order to analyze the neutral point displacement of low-voltage distribution network caused by the imbalance of three-phase topology or load(distributed photovoltaic as a negative load),the voltage of the far-end node of the neutral line is approximately calculated,so that the node is equivalent to the three-phase current concentrated loop node.Fourthly,algorithm flow of fast power flow calculation is proposed.Finally,the ultra-realtime characteristics and accuracy of the algorithm are verified by an im-proved IEEE 33 node example,which provides a strong support for large-scale distributed photovoltaic access.关键词
低压配电网/三相不平衡/分布式光伏/潮流计算/中性点位移Key words
low voltage distribution network/three phase unbalance/distributed photovoltaic/power flow calculation/neutral point dis-placement分类
信息技术与安全科学引用本文复制引用
汪泽州,毛琳明,刘维亮,储建新,陈刚..计及分布式光伏的三相不平衡低压配电网快速潮流计算[J].电子器件,2024,47(4):1065-1072,8.基金项目
国网浙江省电力有限公司科技项目(SGZJJXI0YJJS2200670) （SGZJJXI0YJJS2200670）
