电瓷避雷器Issue(2)：49-55,65,8.DOI:10.16188/j.isa.1003-8337.2025.02.007
考虑滞回特性的避雷器阻性电流测量方法
Arrester Resistive Current Extraction Method Considering Hysteresis Characteristics
摘要
Abstract
Metal oxide arresters(MOA)have been widely used in power system due to its excellent non-linear characteristics.Effective online detection of its operating state is the key to ensure reliable power supply of power system.Arrester monitoring devices based on the capacitive current compensation method used in the power grid have the problem of measurement error due to the hysteresis characteristics of the arrester and inter-phase interference.The differential method based on the voltage zero-point is used to calculate the grain boundary capacitance and phase-to-phase coupling capacitance of the arrester,and the resistive current of the three-phase arrester is extracted.The results are compared with the ca-pacitive current compensation method.It is verified by simulation and actual measurement.The results show that the method can eliminate the influence of hysteresis characteristics,voltage harmonics and in-terphase interference on the arrester resistive current measurement,and further improve the accuracy of the measurement.关键词
金属氧化物避雷器/滞回特性/电压谐波/相间干扰/阻性电流Key words
metal oxide arresters/hysteresis/voltage harmonics/interphase interference/resistive current引用本文复制引用
靳英,朱丽媛,李文庆,邱凌枫,刘宇兴,朱文强..考虑滞回特性的避雷器阻性电流测量方法[J].电瓷避雷器,2025,(2):49-55,65,8.基金项目
广东电网有限责任公司梅州供电局科技项目(编号:031400KK52200001). Project supported by Science and Technology Project of Meizhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd.(No.031400KK52200001). （编号:031400KK52200001）
