基于IFA和TDOA的变压器局部放电特高频定位方法  

UHF LOCATION METHOD OF TRANSFORMER PARTIAL DISCHARGE BASED ON IFA AND TDOA

作　　者：马鹏墀 王致杰[1] 刘永慧 沈盼 王鸿[1] 付晓琳 杨皖昊 Ma Pengchi;Wang Zhijie;Liu Yonghui;Shen Pan;Wang Hong;Fu Xiaolin;Yang Wanhao(Shanghai Dianji University,Shanghai 201306,China;Jiangsu Hongyuan Electric Co.,Ltd.,Nanjing 211100,Jiangsu,China)

机构地区：[1]上海电机学院,上海201306 [2]江苏宏源电气有限责任公司,江苏南京211100

出　　处：《计算机应用与软件》2023年第1期111-116,共6页Computer Applications and Software

基　　金：国家自然科学基金项目(61803253);上海市自然科学基金项目(15ZR1417300)。

摘　　要：非线性球面方程组的求解是变压器局部放电定位的关键技术之一,针对定位算法对时延误差敏感、容易陷入局部最优或误解等问题,提出基于改进萤火虫算法的变压器局部放电特高频定位方法。给出局部放电的定位模型和目标函数,对定位算法的适应度函数进行改进,对萤火虫算法的初始种群选择策略和萤火虫个体更新策略进行改进。仿真过程中,在理论时延下验证改进算法的可行性,通过改变时延大小模拟实际测量时的时延误差,并与其他定位算法进行对比,发现改进的定位算法平均定位误差为10.53 cm,满足定位精度要求。通过实验进一步验证了该算法的有效性和适用性。The solution of nonlinear spherical equations is one of the key technologies of PD location in transformer. Aiming at the problem that the location algorithm is sensitive to time delay difference, and is easy to fall into partial optimum or misunderstanding, we propose a new UHF location method based on improved firefly algorithm. We offered the location model and target function of PD, improved the fitness function of the location algorithm, and improved the initial population selection strategy and individual renewal strategy of firefly algorithm. In the simulation process, the feasibility of the improved algorithm was verified in the case of theoretical delay. By changing the time delay to simulate the actual time delay error, and comparing with other location algorithms, it was found that the improved localization algorithm had an average positioning error of 10.53 cm, which could meet the positioning accuracy requirements. The effectiveness and applicability of the algorithm were further verified.

关 键 词：变压器 局部放电 TDOA UHF 定位算法 FA 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术] TM835[电气工程—高电压与绝缘技术]