高电压技术2011，Vol.37Issue(9)：2328-2336,9.
金属氧化物限压器冷却结构设计及其三维温度场仿真分析
Cooling Structure Design of Metal Oxide Voltage Limiter and Simulation Study of Its Three Dimensional Temperature Field
摘要
Abstract
During the short-circuit fault in power system,a huge short-circuit energy will inject into metal oxide voltage limiter（MO） mandrel,leading to the rapid temperature rise of MOV.To ensure the reliable running of MOV and to extend its service life,MOV needs to cool as soon as possible.Therefore,MOV cooling structure with the excellent cooling efficiency and the knowledge for the temperature distributions of MOV mandrel are of essential importance.We proposed a new cooling structure of MOV,and established a finite element model of MOV 3D temperature field based on the theory of heat transfer.For the proposed cooling structure of MOV and the calculation model,the systematical calculations and analyses of the influences of the diameter,numbers and distributions of the cooling channel on the heat transfer were performed using the finite element software ANSYS.It is shown that the efficiency of the cooling structure can be changed by changing its diameter,there is an optimum diameter of 10 mm,where the good cooling efficiency is obtained,and the efficiency of cooling structure with the four channels is superior to that with the two channels.关键词
金属氧化物限压器（MOV）/温度场/有限元法/散热能力/冷却通道/结构优化Key words
metal oxide voltage limiter（MOV）/temperature field/finite element method/heat transfer ability/cooling channel/structural optimization分类
信息技术与安全科学引用本文复制引用
温惠,谭震宇,唐宗华,孙树敏,李庆民..金属氧化物限压器冷却结构设计及其三维温度场仿真分析[J].高电压技术,2011,37(9):2328-2336,9.基金项目
国家自然科学基金 （）
山东省科技发展计划 （）
山东省自然科学杰出青年基金 （）
