摘要
在对变压器局部放电的检测中,把从放电点到外部测量端的的路径作为一个系统,放电发生的位置不同会使系统的传递函数存在差异。本文采用建立仿真模型并结合试验的方法,研究了不同的局部放电脉冲传播路径的传递函数。在分析传递函数频谱特性的基础上,提出了根据响应信号高频分量和能量的局部放电电气定位方法。
For the detection of partial discharge (PD) in transformers, if the path from the PD location to the detecting terminal is taken as a system, there is difference among the system transfer functions owing to the varied location of PD. A simulation model is established in this paper and the transfer functions of the PD pulses propagation path are calculated and analyzed. After analyzing the frequency characteristic of the transfer function based on the high frequency component and signal energy of the measured signal, the electrical 1ocating methods of the PD source are presented.
出处
《电工电能新技术》
CSCD
2003年第1期32-34,47,共4页
Advanced Technology of Electrical Engineering and Energy
基金
国家自然科学基金会
东北电力集团公司资助重点项目(59637200)
