Optical Electric Current Transformer Error Measuring System Based on Virtual Instrument
Optical electric current transformer is introduced in this paper. Based on virtual instrument and digital signal processing technology, error measuring system is designed by using LabVIEW software and DAQ-2006 data acquisition card. There are harmonic analysis module, error analysis module, and history data analyses module in error measuring system. Functions of these three modules are introduced. Measuring channels error and protection channels error of optical electric current transformer, are measured. Random phase error curve and ratio error curve of measuring channel in different test current are plotted. The result shows that, this error measuring system achieves accuracy standard, and is able to measure phase error and ratio error of optical electric current transformer exactly.
virtual instrument optical electric current transformer sine wave algorithm
Liu Yunpeng You Shaohua Wan Qifa Lu Fangcheng
School of Electrical Engineering,North China Electric Power University,Baoding 071003 China;Wuhan Hi School of Electrical Engineering,North China Electric Power University,Baoding 071003 China Wuhan High Voltage Research Institute of SGCC,Wuhan,430074 China
国际会议
西安
英文
2007-08-16（万方平台首次上网日期，不代表论文的发表时间）