Synchrophasors, Oscillographs, Data convergence, PMU, IED, event analysis
Abstract
The increasing deployment of Intelligent Electronic Devices (IEDs) for obtaining synchrophasors and recording oscillographies in Electric Power Systems (EPS) has enhanced system operation, enabling monitoring, control, and protection applications. However, the growing number of IEDs makes managing the large flow of data (from different sources and of different natures) a challenge for the system operator. This article presents an infrastructure and proposes a solution, based on the convergence of synchrophasor and oscillography data, for the analysis of disturbances in an EPS. The infrastructure includes an event detection module based on power system frequency data, a module that captures oscillographies recorded by the IEDs, and a module that identifies events with high systemic impact (based on predefined criteria) and retrieves the corresponding data, focusing the system operator's analysis effort on disturbances of greater interest.
