Title :
Synchrophasor-based power system protection and control applications
Author :
Schweitzer, Edmund O., III ; Whitehead, David ; Zweigle, Greg ; Ravikumar, Krishnanjan Gubba
Author_Institution :
Schweitzer Eng. Labs., Inc., Pullman, WA, USA
fDate :
March 29 2010-April 1 2010
Abstract :
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 realtime 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.
Keywords :
load shedding; phase measurement; power system control; power system protection; coherent data set; grid interconnection; intermittent generation source control; islanding control; load shedding; post-event analysis; power system control; power system protection; synchrophasor systems; voltage stability correction; voltage stability detection; Automatic control; Control systems; PD control; Pi control; Power system analysis computing; Power system control; Power system protection; Power system stability; Power systems; Voltage control;
Conference_Titel :
Protective Relay Engineers, 2010 63rd Annual Conference for
Conference_Location :
College Station, TX
Print_ISBN :
978-1-4244-6073-1
DOI :
10.1109/CPRE.2010.5469481