基于现场信号仿真技术的电流互感器误差测试技术研究  

Research on current transformer error testing technology based on field signal simulation technology

作　　者：陈海宾 杨姝楠 陈丽雯 甄昊涵 陈圣泽 张梦彧 Chen Haibin;Yang Shunan;Chen Li wen;Zhen Haohan;Chen Shengze;Zhang Mengyu(State Grid Shanghai Electric Power Research Institute,Shanghai 200122,China;State Key Laboratory of Electrical Insulation and Power Equipment,Xi'an Jiaotong University,Xi'an 710049,China)

机构地区：[1]国网上海市电力公司电力科学研究院,上海200122 [2]西安交通大学电力设备电气绝缘国家重点实验室,西安710049

出　　处：《电测与仪表》2021年第2期133-138,共6页Electrical Measurement & Instrumentation

基　　金：国网上海电力有限公司科技项目(52094018002A)。

摘　　要：针对在计量用低压电流互感器的误差检测中,传统测量方法无法模拟现场实际工况的问题,提出一种基于现场信号仿真技术的电流互感器误差测试方法,并采用实验对其进行验证。首先,将基于高速录波技术,所提取的现场实际工况波形及特征信号,进行数字化分解;然后,利用程控电压源与程控电子负载,搭建信号仿真测试平台,复现现场工况波形,对被试电流互感器进行误差测试,并分解、整理所用波形,形成电流互感器运行误差测试波形库。最后,利用波形库中特征波形,对电流互感器进行误差检测。In order to solve the problem that the traditional measurement method cannot simulate the actual working condition in the measurement of low-voltage current transformer error detection,a current transformer error test method based on the field signal simulation technology is proposed and verified by experiments.Firstly,based on the high-speed recording wave technology,the actual working condition waveform and characteristic signal are digitally decomposed.Then,the program-controlled voltage source and program-controlled electronic load are used to build the signal simulation test platform to reproduce the field working condition waveform,and the error test of the tested current transformer is carried out,and the used waveform is decomposed and sorted to form the current transformer operation error test waveform library.Finally,the current transformer error could be detected through using the characteristic waveform in the waveform library.

关 键 词：低压电流互感器 信号仿真 复合误差 

分 类 号：TM452[电气工程—电器]