A New Model for Simulating AC and Surge Properties of ZnO Varistors Based on Microstructural Characteristics

摘要：

　　The numerical simulation is an effective method for researching the relationship between macroscopic properties of ZnO varistors and their microstructural characteristics.However,the computing efficiency is a big problem for further researches.In this paper,a quick piecewise linear method for solving the complicated nonlinear resistor networks of ZnO varistors is proposed,which can significantly improve the computing efficiency by a hundred times.The simulating models for the microstructural characteristics of ZnO varistors are improved based on actual conduction mechanism of grain boundaries.The simulations of more bulk characteristics of ZnO varistors become possible,such as alternating current (AC) and surge properties.

关键词： ZnO varistor Numeric simulation AC and surge properties

作者: Jun Hu Jinliang He Fengchao Luo

作者单位: State Key Lab of Power Systems,Dept.of Electrical Engineering,Tsinghua University,Beijing 100084,P.R.China

会议类型: 国际会议

会议名称: The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))

会议地点: 长沙

会议语种:英文

页码: 510-513

在线出版日期: 2007-05-10（万方平台首次上网日期，不代表论文的发表时间）