Visualization and Characterization of Stability Swings via GPS-Synchronized Data

: This paper provides a methodology to characterize the accuracy of PMU data (GPS-synchronized) and the applicability of this data for monitoring system stability via visualization methods. GPS-synchronized equipment (PMUs) is in general higher precision equipment as compared to typical SCADA systems. Conceptually, PMU data are time tagged with precision better than 1 microsecond and magnitude accuracy that is better than 0.1%. This potential performance is not achieved in an actual field installation due to errors from instrumentation channels and system imbalances. Presently, PMU data precision from substation installed devices is practically unknown. On the other hand, specific applications of PMU data require specific accuracy of data. Applications vary from simple system monitoring to wide area protection and control to voltage instability prediction and transient stability monitoring. The paper focuses on the last application, i.e. transient stability monitoring. We propose an ap...

• Type: Conference
• Year: 2007
• Where: HICSS
• Authors: George J. Cokkinides, A. P. Sakis Meliopoulos, George K. Stefopoulos, Ramiz Alaileh, Apurva Mohan
• Keywords: Biometrics, HICSS 2007, PMU Data, System Sciences, Transient Stability, Transient Stability Monitoring