重庆大学学报2025，Vol.48Issue(3)：27-37,11.DOI:10.11835/j.issn.1000-582X.2025.03.003
低压配网日理论线损率的概率分析方法
Daily theoretical line loss rate probability analysis for low voltage distribution networks
摘要
Abstract
Accurately determining the daily theoretical line loss rate in low-voltage distribution networks is challenging,making it difficult to quantitatively assess its fluctuation range.To address this issue,this paper proposes a probabilistic analysis method for evaluating the daily theoretical line loss rate in low-voltage distribution networks.First,the actual three-phase four-wire connection of the low-voltage distribution network is considered,and it is assumed that the random models of three-phase voltage,distributed power output,and the three-phase active and reactive power of the distribution transformer on the low-voltage side are known and simulated.Then,source-load correlation is incorporated,and Latin hypercube sampling,combined with the equal probability transform principle and rank correlation,is employed.Finally,using the Monte Carlo simulation method,the probabilistic distribution of power flow and the daily theoretical line loss rate is calculated by the Newton injection current method,taking three-phase unbalance into account.This approach provides a decision-making basis for reducing losses in low voltage distribution networks.Experimental data from the Hengshan Garden low-voltage distribution network validate the effectiveness of the proposed method.关键词
低压配网/理论线损率/概率分布/拉丁超立方/蒙特卡洛模拟Key words
low-voltage distribution network/theoretical line loss rate/probability distribution/Latin hypercube sampling/Monte Carlo simulation分类
动力与电气工程引用本文复制引用
侯兴哲,颜伟,王思韡,苏宇,程瑛颖,陈文礼,陈飞宇,吴至友,黄浩川,何艺铭..低压配网日理论线损率的概率分析方法[J].重庆大学学报,2025,48(3):27-37,11.基金项目
国家电网有限公司总部科技项目(5700-202227226A-1-1-ZN).Supported by State Grid Headquarters Technology Project(5700-202227226A-1-1-ZN). （5700-202227226A-1-1-ZN）
