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Tele-Seminar, April 30, 2004

Measurement Errors

nGPS Synchronized Measurements are More Accurate than Sensors but still Imperfect – Errors are Present

nSensorless SCADA Have Accuracy Comparable to GPS Synchronized Measurements

System Exhibits “Internal” Errors

nErrors from Instrumentation

nErrors from Imbalance

nErrors from Asymmetry

Solution

nData Filtering via Estimation Methods à Validation

Important Observations