梁武民,路光辉,王伟杰,雍明超,曾国辉,牧继清.基于频率与相位特性的避雷器电压提取方法研究[J].电测与仪表,2016,53(22):. LIANG Wu-min,LU Guang-hui,WANG Wei-jie,YONG Ming-chao,ZENG Guo-hui,MU Ji-qing.A Method for Extracting Voltage of Surge Arrester Based on Frequency and Phase Features[J].Electrical Measurement & Instrumentation,2016,53(22):.
基于频率与相位特性的避雷器电压提取方法研究
A Method for Extracting Voltage of Surge Arrester Based on Frequency and Phase Features
In order to solve the problem of arrester on-line monitoring device can not accurately obtain the voltage in form of complex wiring, a voltage extraction method is proposed based on frequency and phase difference deviation mean of current and bus voltage. By calculating, analysis and filtering frequency and mean of phase difference deviation of current and voltage, and using the threshold diagnostic algorithm to achieve the actual withstand voltage extraction of arrester. Practical verification demonstrated the effectiveness of the algorithm that the algorithm can reliably distinguish different frequency voltage signal, effectively eliminate interference and accurately extract the arrester actual withstand voltage.
