传递函数法用于变压器冲击试验的故障诊断  

Applying transfer function method for fault diagnosis in impulse testing of transformers

作　　者：黄忠海[1] 朱旭东[1] 

机构地区：[1]上海交通大学电气工程系,上海200030

出　　处：《华东电力》2005年第3期41-43,共3页East China Electric Power

摘　　要：利用传递函数法进行变压器故障判断时,传递函数的计算直接影响判断的准确性,试验数据的分析表明,在相同的试验条件下,合理选择采样率和记录长度并对采集到的数据进行滤波将有利于传递函数的计算,从而得到更准确的试验结果。While using the transfer function method to diagnose the transformer faults, the calculation of the transfer function directly affects the accuracy of the judgment. Analysis of the testing data shows that in the same testing condition, the appropriate sampling frequency, the length recording and filtering of the acquired data will help the transfer function calculation and obtain more accurate testing result.

关 键 词：传递函数 离散GABOR变换 三指数拟合 Heisenberg不确定原则 FFT 

分 类 号：TM835[电气工程—高电压与绝缘技术]