高电压技术2018，Vol.44Issue(5)：1660-1667,8.DOI:10.13336/j.1003-6520.hve.20180430035
基于ANSYS的1000 kV金属氧化物避雷器不同运行状况下电位分布的仿真计算
Simulation Calculation of Potential Distribution of 1 000 kV Metal Oxide Arrester Under Different Conditions Using ANSYS
摘要
Abstract
1 000 kV metal oxide arrester(MOA) has characters of large sizes and complicated structures, and it is prone to aging and damping in the long-run process, which can cause potential anomaly distributed, and even lead to arrester explosion and other accidents. Consequently, we established a complete 3D simulation model of 1 000 kV MOA using the ANSYS. Then we studied the approach of short circuit and damp in electrostatic field, in order to simulate the potential distribution when short circuit or damp occur at different locations. The results show that, firstly, the maximum relative error of 3.26％ verifies the effectiveness of the model comparing the simulation results with the results of measuring in normal operation;secondly, short-circuit resistors are equivalent to conductors, making resistors in fault column of the same "coupling region" to bear higher voltage; finally, water increases the equivalent capacitance of damp resistors, reducing the voltage assignment rate of damp part. Above conclusions are verified to be correct through the analysis of electrostatic field.关键词
金属氧化物避雷器/电位分布/ANSYS/短路/受潮/有限元仿真Key words
MOA/potential distribution/ANSYS/short circuit/damp/finite element simulation引用本文复制引用
张迪,张丕沛,张军阳,高强,杨炜晨,苗世洪..基于ANSYS的1000 kV金属氧化物避雷器不同运行状况下电位分布的仿真计算[J].高电压技术,2018,44(5):1660-1667,8.基金项目
国家电网公司2015 年科技项目(2015GW-02).Project supported by 2015 Science and Technology Project of SGCC (2015GW-02). （2015GW-02）
