考虑谐波信号频率的电力计量互感器暂态电流误差识别  

Identification of Transient Current Error in Power Measurement Transformers Considering Harmonic Signal Frequency

作　　者：孟晨 MENG Chen(State Grid Shaanxi Electric Power Co.,Ltd.,Xixian New Area Power Supply Company,Xianyang 712000,China)

机构地区：[1]国网陕西省电力有限公司西咸新区供电公司,陕西咸阳712000

出　　处：《通信电源技术》2023年第22期79-81,共3页Telecom Power Technology

摘　　要：传统的电力计量互感器暂态电流误差识别方法直接识别误差,未分析误差数据特征,识别准确度较低。因此,提出一种基于谐波信号频率的电力计量互感器暂态电流误差识别方法。通过分析电力计量互感器的数据采集原理,采集误差数据,基于谐波信号频率分析误差特征,利用误差特征在电力计量互感器的读数中建立无序条件,从而实现电力计量互感器暂态电流误差的识别。通过对比实验,证实该方法具有更高的误差识别准确度。The traditional identification method of transient current error of power metering transformer is to identify the error directly,without analyzing the characteristics of error data,and the identification accuracy is low.Therefore,this paper proposes a transient current error identification method of power metering transformer based on harmonic signal frequency.By analyzing the data acquisition principle of power metering transformer,the error data is collected.On this basis,based on the frequency analysis of harmonic signals,the error characteristics are used to establish disorder conditions in the readings of power metering transformers,thus realizing the identification of transient current errors of power metering transformers.Through comparative experiments,it is proved that this method has higher error identification accuracy and is worth popularizing.

关 键 词：谐波信号频率 电力计量互感器 电流误差 误差识别 

分 类 号：TM45[电气工程—电器]