What is a Phasor Data Concentrator (PDC)?
A PDC forms a node in a system where phasor data from a number of PMUs or PDCs is correlated and fed out as a single stream to other applications. The PDC correlates phasor data by time-tag to create a system wide measurement set. The PDC provides additional functions as well. It performs various quality checks on the phasor data and inserts appropriate flags into the correlated data stream. It checks disturbance flags and records files of data for analysis. It also monitors the overall measurement system and provides a display and record of performance. It can provide a number of specialized outputs, such as a direct interface to a SCADA or EMS system.
