Milestone: System operator flips switch on real-time situational awareness


By: SGN Staff

Quick Take: Synchrophasors, or phasor measurement units (PMUs) collect time-stamped data about grid conditions. This allows data from different locations to be combined and time synchronized to provide wide-area, real-time situational awareness. MISO recently became one of the first grid operators to put this technology to full use. MISO is the Midcontinent Independent System Operator, a not-for-profit administering wholesale electricity markets.


Now that this technology is moving out of pilots and into full deployments, will we see similar capabilities migrate from transmission grids to distribution grids? - By Jesse Berst


Innovation leader: MISO uses real-time synchrophasor technologies to enhance reliability 


MISO recently became one of the first grid operators across the country to utilize new synchrophasor technology in MISO’s Real-Time System Operations for grid monitoring and analysis, a major milestone in furthering the U.S. Department of Energy’s goal of revitalizing the nation’s electric grid through the use of sophisticated, innovative monitoring devices.


Synchrophasor technologies use phasor measurement units, or PMUs, to collect data from more than 344 installed devices, 30 times per second compared to traditional technology which records measurements every four seconds. The data is GPS time-stamped, enabling measurements from different locations to be time-synchronized and combined to create a detailed, comprehensive wide-area assessment of system conditions. With this data MISO can better detect, diagnose and prevent system disruptions, in effect, creating a smarter grid.


 "Incorporating these new technologies into real-time operations greatly increases our situational awareness of grid activity, and is essential to our effort to modernize the grid. Synchrophasor technologies provide us with unprecedented data on situations that could radically affect reliability,” said Richard Doying, Executive Vice President of Operations and Corporate Services.  "With these devices, we’ve extended our ability to see ongoing system conditions, providing additional assurance that consumers are benefiting from improved reliability and predictability,” Doying added.