基于改进算术优化算法的低压配电网故障区段定位  

Fault Section Location in Low-Voltage Distribution Networks Based on Improved Arithmetic Optimization Algorithm.

作　　者：刘敬之 杨洪易 张剑明 王欣阳 崔伟 LIU Jingzhi;YANG Hongyi;ZHANG Jianming;WANG Xinyang;CUI Wei(State Grid Qinghai Electric Power Company Electric Power Science Research Institute,Qinghai Xining 810008,China;Zhejiang Yi'an Power Electronics Technology Co.,Ltd.,Zhejiang Hangzhou 311302,China)

机构地区：[1]国网青海省电力公司电力科学研究院,青海西宁810008 [2]浙江亿安电力电子科技有限公司,浙江杭州311302

出　　处：《农村电气化》2025年第4期13-19,共7页Rural Electrification

基　　金：国网青海省电力有限公司科技项目资助(多态融合低压智能开关装置研究与应用)(B7280724E068)。

摘　　要：为了提高低压配电网故障区段定位的准确性和快速性,解决现有算法易陷入局部最优状态、探索力不足以及准确度低的问题,提出了一种基于改进算术优化算法实现低压配电网故障区段定位的方法,通过改造数学优化加速系数MOA函数、引入自适应t分布扰动策略以及优化最优值赋值函数这3个方面来优化算法的搜索能力,使算法跳出局部最优状态并提高算法的准确度。此外,选取IEEE 33节点的配电网模型并应用Matlab对模型节点支路、节点开关状态和适应度函数进行了仿真,对单点故障和多点故障以及存在信号畸变的单多点故障进行仿真分析。结果表明,利用改进算术优化算法的局部搜索和全局搜索分开进行的特点对故障区段定位问题进行充分搜索,可实现故障区段准确定位。To improve the accuracy and speed of fault section location in low-voltage distribution networks,existing algorithms face issues such as a tendency to fall into local optima,insufficient exploration capabilities,and low accuracy,which limit their ability to locate faults.Additionally,in low-voltage distribution networks,the operating environment for distribution terminals is relatively harsh,which may lead to underreporting or misreporting of information.Therefore,this paper proposes a method for fault section location based on an improved arithmetic optimization algorithm.The IEEE 33-node distribution network model is selected,and Matlab is used to program and simulate the model's node branches,node switch states,and fitness functions.Simulation calculations are performed for single-point faults,multiple-point faults,and faults with signal distortions,and the simulation results are analyzed.The results show that by leveraging the characteristic of the improved arithmetic optimization algorithm,which separates local search and global search,a thorough local search can be conducted for the fault section location problem,achieving accurate positioning.

关 键 词：低压配电网 改进算术优化算法 故障区段 定位 

分 类 号：TM614[电气工程—电力系统及自动化]