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

机译：基于微结构特征的ZnO压敏电阻交流电和浪涌特性仿真新模型

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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.
机译：数值模拟是研究ZnO压敏电阻的宏观特性与其微观结构特性之间关系的有效方法。但是，计算效率是进一步研究的大问题。本文提出了一种快速的分段线性方法来求解复杂的ZnO压敏电阻非线性电阻网络，该方法可以将计算效率显着提高一百倍。基于实际的晶界传导机理，对ZnO压敏电阻的微观结构模拟模型进行了改进。可以模拟更多的ZnO压敏电阻的体积特性，例如交流电（AC）和浪涌特性。

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