Instrument Transformer Calibration and Robust Estimation of Transmission Line Parameters using PMU Measurements
IEEE Transactions on Power Systems(2021)
摘要
Instrument transformers (ITs) once installed in the field are seldom calibrated. We propose two tests to detect systematic errors in capacitive voltage transformers (CVTs) and current transformers (CTs). The first test, a direct test, compares the mid-point voltage estimated from both ends of a transmission line using PMU data. The second test, an indirect test, analyzes the deviation of the estim...
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关键词
Calibration,Transmission line measurements,Phasor measurement units,Power transmission lines,Systematics,Meters,Estimation
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