摘要
分析了MOA在基波电压作用下,基波电压与阻性泄漏电流三次谐波分量之间的关系。通过电场传感器获取线路基波和三次谐波电压信号,利用数字信号处理技术,对MOA的全电流进行数字分析,提出了一种计算MOA阻性泄漏电流的新方法。仿真计算表明,该方法可以较好地补偿MOA容性电流的基波分量和三次谐波分量。
Through electrical field transducer taking the line voltage signal, based on analyzing the relation of first and third harmonic current wave shape of MOA under first harmonic voltage, making use of DSP technology, the author proposes a new method of calculating MOA′s resistive leakage current. The digital simulation shows this method can compensate MOA′s first and third harmonic capacitive components of current accurately.
出处
《电瓷避雷器》
CAS
2005年第1期40-43,共4页
Insulators and Surge Arresters
关键词
在线监测
阻性泄漏电流
数字信号处理
谐波分析
on-line detection
MOA′s resistive leakage current
digital processing
harmonic analysis
