Tools for End-to-end Analysis, Calibration and Troubleshooting of Synchrophasor Systems

The data quality issues in synchrophasor systems are quite complex and require new test methodology and tools to detect and mitigate the causes of bad data. This paper presents an approach for end-to-end testing of synchrophasor systems based on nested testing of the system components. It also introduces a portable device capable of performing calibration and troubleshooting tests on synchrophasor systems, from the components installed in substations to the ones installed in control centers. The capability to analyze each system component separately, one at a time, allows locating as well as characterizing data quality deterioration causes or any design anomalies very accurately. After the system components are tested, based on the obtained troubleshooting information, a comprehensive end-to-end calibration can be performed.