基于免疫模型与改进免疫算法的岛礁分布式供电系统故障定位方法  

Fault location method for island and reef distributed power supply system based on immune model and improved immune algorithm

作　　者：李维波 张茂杰 徐成虎 张浩 方华亮[3] LI Weibo;ZHANG Maojie;XU Chenghu;ZHANG Hao;FANG Hualiang(School of Automation,Wuhan University of Technology,Wuhan 430070,China;College of Electrical Engineering,Northwest Minzu University,Lanzhou 730124,China;School of Electrical Engineering and Automation,Wuhan University,Wuhan 430072,China)

机构地区：[1]武汉理工大学自动化学院,湖北武汉430070 [2]西北民族大学电气工程学院,甘肃兰州730124 [3]武汉大学电气与自动化学院,湖北武汉430072

出　　处：《中国舰船研究》2025年第2期89-98,共10页Chinese Journal of Ship Research

基　　金：国家重点研发计划项目(2020YFB1506802);国家自然科学基金面上项目(51977164)。

摘　　要：[目的]对于由多个分布式电源构成的岛礁电力系统,为了提高其故障定位的快速性和准确性,提出一种基于免疫模型与改进免疫算法的岛礁电力系统故障定位方法。[方法]首先,利用免疫模型将岛礁供电系统区段划分为包含监测点的若干个小区段,根据监测的故障电流信号来确定故障点所在的小区段,从而最大限度地缩小故障判定范围;然后,针对该小区段故障点进行编码,并借助改进免疫算法生成抗体种群,进而对故障区段快速地进行二次精确定位,同时大幅降低计算量。[结果]根据典型岛礁供电系统的Matlab仿真验证结果,免疫模型与改进免疫相结合的算法可以实现岛礁电力系统在不同故障工况下的快速故障定位,具有定位精度高、计算量小、求解速度快等优势。[结论]研究成果可为岛礁电力系统设计提供参考。[Objective]In order to improve the rapidity and accuracy of fault location for island and reef power supply systems composed of multiple distributed power sources,a fault location method based on an immune model and improved immune algorithm is proposed.[Methods]First,the immune model is used to divide the island and reef power supply system into several cell sections containing monitoring points.According to the monitored fault current signal,the cell section where the fault point is located is determined in order to minimize the fault determination range.The fault points of the cell section are then coded and the antibody population is generated by the improved immune algorithm,enabling the fault section to be quickly and accurately located for a second time,thus greatly reducing the calculation load.[Results]According to the Matlab simulation results of a typical island and reef power supply system,the immune model and improved immune algorithm combination can realize rapid fault location under various fault conditions,with such advantages as high positioning accuracy,light calculation load and fast solution speed.[Conclusion]The results of this study can provide useful references for the design of island and reef power supply systems.

关 键 词：电力系统 分布式电源 岛礁供电 故障分析 免疫算法 

分 类 号：U665.14[交通运输工程—船舶及航道工程]