Testing of Phasor Measurement Units (PMU devices) is necessary for any PMU application, be it a simple visualization and archiving system or a more complex set of real-time system operations tools. PMUs are available from virtually every manufacturer of protection and monitoring equipment. PMUs can be an embedded function within relays or disturbance recorders or alternatively they can be standalone products. RTDS simulations can now include PMUs allowing the PMU data to be used for but not limited to monitoring of oscillations, angle difference, system frequency and voltage stability. Other ideas for PMU data include situational awareness, alarm and operational limit settings, state estimation and congestion management to name a few.
Eight PMUs can be simulated using one processor with each operating independently to provide symmetrical component information related to 3 phase sets of instantaneous values of voltage and current using UDP or TCP connections. The GTNET-PMU component uses a single GTNET card to provide a maximum of eight data streams.
The GTNET card is connected to the RTDS Simulator through a GTIO port on a GPC/PB5 card. The GTNET-PMU component output is synchronized to an external 1PPS or IEEE 1588 signal via the GTSYNC. Each of the eight PMUs per component support frames rates as high as 240 frames per second as well as support for the latest C37.118.2 configuration frame which serves to make it a great tool to test physical phasor data concentrators (PDCs).
Multi Module Converter Component
GTSYNC
PB5 Processor Card
IRC Switch
Florida State University - Center for Advanced Power Systems
GTWIF