Documents

This report addresses the critical need for accurate monitoring of grid oscillations caused by the periodic load profiles of large AI data centers. It provides an essential analysis for anyone involved in grid performance and compliance. Abstract: Artificial intelligence (AI) training data centers...

Power system planners and analysts see growing opportunities in the use of higher-resolution, time-synchronized grid data for a variety of applications. This paper defines high-resolution measurements as those faster than 256 samples/sec., ranging up to a million samples/second (1 MHz). It reviews...

TRS and PNNL collaborated to develop a Use of Time-Synchronized Measurements in the Real-time Ops Horizon training course (8 CEH). Course Summary: Provide an introduction to synchrophasor technology, describe the value it can provide in the Real-time Ops Horizon, and demonstrate how synchrophasor...

This paper describes how synchrophasor technology can be used in the Real-time Operations Horizon to determine the origin, nature and severity of disturbances on the electric power system. Specifically, this paper considers how synchrophasor data and their application can be used by System...

This paper describes certain functional entity roles and responsibilities related to oscillation detection monitoring, considers how synchrophasor technology may be used to identify actual oscillation events or issues, and describes some of the related commercial applications that are currently...

An ATC Operations Engineer was using synchrophasor data to review fault operations and stumbled across the odd voltage signature shown below from a PMU monitoring one of our 69 Kv substations. One of the three voltage phases would “drift” away from the other two phase voltages and then eventually...

We have observed significant sustained voltage oscillations on the ATC transmission system that were not visible in our SCADA data. These oscillations are normally in the 0.6 – 0.75 Hz range and are lightly damped. They can persist for weeks and then disappear for weeks and even months.

Silverstein, A. July 2017. NARUC Summer Meeting, presentation "Synchrophasors & the Grid."

NASPI PMU map with and without data connections.

NASPI's Time Synchronization Task Force's Technical Report (NASPI-2017-TR-001). The power system uses precision timing for grid monitoring and situational awareness, to coordinate the operation and integration of a variety of grid assets, and for grid protection and operation. Because power systems...