基于粒子群优化算法的金属氧化物避雷器阻性电流计算方法研究  

Research on calculation method of resistive current of metal oxide arrester based on particle swarm optimization

作　　者：李涛 方文田 LI Tao;FANG Wentian(Jieyang Power Supply Bureau of Guangdong Power Grid Co.,Ltd,Jieyang,Guangdong 522000)

机构地区：[1]广东电网有限责任公司揭阳供电局,广东揭阳522000

出　　处：《电气技术》2021年第11期104-108,共5页Electrical Engineering

基　　金：广东电网有限责任公司揭阳供电局职创项目“避雷器带电测试数据智能分析系统”(GDZC202104091112)。

摘　　要：由于相间干扰的存在,在对金属氧化物避雷器(MOA)进行带电测试时,难以准确获取阻性电流。本文分析带电测试中相间干扰的产生机理,提出一种基于粒子群优化算法(PSO)的阻性电流计算方法。利用PSO寻优能力强、收敛速度快的特点,求解得到阻性电流。选取某220kV户外敞开式变电站避雷器作为测试实例,通过对比分析测试结果,得出所提算法能够有效消除相间干扰的结论,提高了金属氧化物避雷器带电测试的准确性。It is difficult to accurately obtain the resistive current due to the interphase interference during the live-line measurement of the metal oxide arrester(MOA).This paper analyzes the mechanism of interphase interference in live-line measurement,and proposes a resistive current calculation method based on particle swarm optimization(PSO).Using the strong optimization ability and fast convergence speed of PSO,the resistive current can be obtained.An 220kV open-type substation is selected as a test example.Through comparing and analyzing the test results,it is concluded that the proposed algorithm can effectively eliminate the interphase interference and improve the accuracy of metal oxide arrester live-line measurement.

关 键 词：金属氧化物避雷器 带电测试 阻性电流 相间干扰 粒子群优化算法 

分 类 号：TM862[电气工程—高电压与绝缘技术]