中国电机工程学报2013，Vol.33Issue(4)：201-208,前插26,9.
非线性绝缘电介质AC介电特性参数及其测量
AC Dielectric Characterization Parameters of Nonlinear Insulating Dielectrics and Their Measurement
摘要
Abstract
Nonlinear insulating dielectrics made from polymer blended with inorganic semiconductor fillers are used as field-grading materials to avoid stress concentrations in many high voltage applications. The comprehensive measurement of the dielectric characteristics is the important foundation for research on application and theory of non-linear insulating dielectrics. An AC dielectric properties measuring system for nonlinear insulating dielectrics was developed based on virtual instrument technology, and the instantaneous waveforms of excitation voltage and responding current were measured. Then, the responding current was decomposed into the resistive current and the capacitive current referencing the excitation voltage, using the decomposing algorithms presented. Through the analysis on the waveforms of voltage and currents, the dynamic and static dielectric parameter relationships with electric field, and the equivalent parameters were obtained in the instantaneous measurement. Combined with the demonstrating measurements, the obtaining procedures of these parameters and their relationship curves with electric field were presented in detail.关键词
非线性绝缘电介质/交流介电特性/等效参数/动态与静态参数/测量Key words
nonlinear insulating dielectrics/ AC dielectric characteristics/ equivalent dielectric parameters/ dynamic and state dielectric parameters/ measurement分类
信息技术与安全科学引用本文复制引用
郑欢,李忠华,黄志鹏,郭文敏,韩永森..非线性绝缘电介质AC介电特性参数及其测量[J].中国电机工程学报,2013,33(4):201-208,前插26,9.基金项目
国家自然科学基金项目(50877019,51177029). （50877019,51177029）
