Anomaly Monitoring of Running State of Electric Power Metering Device Based on Random Matrix
During the long-term operation of the power metering device,local abnormal phenomena are prone to occur,resulting in large measurement errors.For this reason,a random matrix based method for monitoring abnormal operation state of power metering devices is proposed.Through the structure of power metering device,the comprehensive error analysis is carried out.Based on the analysis results,the error control strategy of power metering device is proposed to reduce the error of power metering device.Combined with random matrix theory and time series analysis,a matrix is constructed on the basis of ob-taining the limit spectrum distribution of time series of power metering devices to determine the operating state eigenvalue of power metering devices.From the angle of circular law,the anomaly monitoring model is used to monitor the operation characteristics and realize the abnormal monitoring of the operation state of power metering devices.The experimental results show that when the proposed method is used to test the monitoring performance and misjudgment rate,the method has good monitoring effect and high accura-cy,which can effectively improve the reliability of the power metering device and ensure the safe operation of the device.
random matrixpower metering deviceeigenvalueanomaly monitoring
万方数据
维普
