刘磊,王渝红,李兴源,丁志林,张彪,欧林.基于谐波电流差值变化率的滤波器故障在线监测[J].电测与仪表,2015,52(20):. liulei,wangyuhong,lixingyuan,dingzhilin,zhangbiao,oulin.Research on Online Monitor of Filter Fault Based on the Change Rate of Harmonic Current Difference[J].Electrical Measurement & Instrumentation,2015,52(20):.
基于谐波电流差值变化率的滤波器故障在线监测
Research on Online Monitor of Filter Fault Based on the Change Rate of Harmonic Current Difference
Filter has a decisive role in the power system. In order to ensure the safe and stable operation of the filter, effective monitoring is necessary. Based on the analysis of the filter’s function and structure and characteristics of harmonic currents, the changing rate of harmonic current difference is put forward to monitor filter fault on-line. The support vector machine (SVM) is used for classifying fault. By comparing the classification results of different kernel functions, the optimal kernel function is determined. Through simulations of each component’s failure of the double tuned filter, the validity of the index and accuracy of SVM are verified. The validity of the presented on-line monitoring is proved. The index has a certain value for actual projects.
