GIS局部放电源的时差定位方法研究

Research on Localization Method of Partial Discharge Source in GIS Based on Time Difference

通过在GIS装置中置入放电模型的人工模拟缺陷方式,对GIS局部放电源时差定位技术中的时延计算方法进行了试验研究,包括信号波形特征点法与基于LMS的自适应时延计算法。实验室结果表明,基于LMS的自适应时延计算法能够提高时延计算的精度,是比较理想的时延计算法。

Taking the way of artificially simulating defects,where a discharge model is placed into GIS device, the time delay calculation methods in the time difference based localization technology for partial discharge source in GIS are researched experimentally. The time delay calculation methods include the signal waveform characteristic point method and the LMS based adaptive time delay calculation method. Experimental results show that the LMS based adaptive time delay calculation method is more satisfactory with higher accuracy.