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Synchrophasor-based power system protection and control applications

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5 Author(s)
Schweitzer, E.O. ; Schweitzer Eng. Labs., Inc., Pullman, WA, USA ; Whitehead, D. ; Zweigle, G. ; Ravikumar, K.G.
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Synchrophasor data consist of analog and digital values with an associated precise time stamp. With precise time, these quantities are collected from various locations, time-aligned, and then processed as a coherent data set. Synchrophasors have generally been used for visualization and post-event analysis. However, new technologies allow synchrophasors to be processed in real time. Synchrophasor systems are now being used for real-time wide-area protection and control. This paper examines several ways synchrophasors are being used: · Voltage stability detection and correction · Load/generator shedding · Islanding control · Intermittent generation source control and grid interconnection Each application includes a discussion of how synchrophasors provided a unique solution and benefit over traditional solutions. Application performance, speed, data requirements, and equipment are also reviewed. We also discuss a future time-synchronized control solution.

Published in:

Modern Electric Power Systems (MEPS), 2010 Proceedings of the International Symposium

Date of Conference:

20-22 Sept. 2010