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How Can Synchrophasor Technology Be Utilized for Monitoring and Controlling Power System Stability?

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June 1, 2023 | Blog

Electrical substation with tall insulators, metal framework, and a blue sky.

Synchrophasor technology is a powerful tool for monitoring and controlling power system stability. It involves the use of high-speed phasor measurement units (PMUs) to measure the voltage and current phasors at different locations in the power system in real-time. These PMUs are synchronized with a common time reference, allowing for the accurate measurement and comparison of power system behavior across the entire network. 

Using synchrophasor technology for power system stability allows operators to monitor grid conditions in real time and respond quickly to disturbances.

Diagram showing two antennas receiving signals from a satellite, connected to power grid equipment at points A and B.

To apply synchrophasor technology for power system stability monitoring and control, there are several steps that need to be followed: 

1. PMU placement

The first step is to determine the optimal placement of PMUs in the power system. This involves identifying critical points in the network where voltage and frequency stability are most at risk, and installing PMUs at these locations.

2. Data collection

Once the PMUs are installed, they collect high-speed phasor data at a rate of 30 to 60 times per second. This data is time-stamped and synchronized to a common time reference.

3. Data analysis

The collected data is analyzed to detect any anomalies or disturbances in the power system. This analysis can be done in real-time using advanced algorithms and machine learning techniques. 


Synchrophasor data also supports power quality analysis by identifying voltage fluctuations, frequency deviations, and system disturbances.


To implement advanced monitoring solutions, explore our power system studies services

4. Control actions

Based on the results of the data analysis, control actions can be taken to mitigate any stability issues. These actions may include adjusting the settings of power system devices such as generators, transformers, and capacitors, or issuing commands to control centers to change the operating parameters of the network.


Conclusion

Overall, synchrophasor technology provides a powerful tool for power system stability monitoring and control, allowing operators to quickly detect and respond to any stability issues, and helping to ensure the reliable and efficient operation of the power system. 


This makes synchrophasor technology essential for modern power system monitoring, control, and reliability improvement.



A smiling man with glasses and a beard wearing a blue blazer stands in front of server racks in a data center.

About the Author:

Sandip "Sonny" R. Patel, P.E.

IEEE Senior Member · Founder & CEO, Keentel Engineering

In 1995, Sonny Patel earned his Electrical Engineering degree from the University of Illinois. But degrees don't build legacies — action does.

For three decades, he has worked the power industry from every side of the table: 16 years as a utility engineer at Exelon/Commonwealth Edison; generation leadership across hydroelectric, industrial steam turbine, and a 9 GW renewable fleet; NERC Regional Entity Senior Compliance Engineer and Audit Team Lead, auditing some of the nation's largest utilities; and testing and commissioning lead on equipment up to 765 kV — the very top of the North American grid.

Utility. Generator. Regulator. Consultant. Few engineers have seen all four seats. Fewer still have sat in them.His experience spans nuclear, hydro, conventional generation, renewables, oil and gas, mining — and today's data centers, where he is authoring a three-book series on data center design. He is a Licensed Professional Engineer in six states and a Licensed Electrical Contractor in Florida (Unlimited EC) — he doesn't just design the work; he's qualified to stand behind its execution.Today, as Founder and CEO of Keentel Engineering, Sonny leads 51 engineers delivering substation design, power system studies, NERC compliance, and commissioning — done right, coast to coast.Three decades. Every side of the table. One standard: accountable engineering

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Man in a blazer and open shirt, looking at the camera, against a blurred background.

About the Author:

Sandip "Sonny" R. Patel, P.E.

IEEE Senior Member · Founder & CEO, Keentel Engineering

In 1995, Sonny Patel earned his Electrical Engineering degree from the University of Illinois. But degrees don't build legacies — action does.

For three decades, he has worked the power industry from every side of the table: 16 years as a utility engineer at Exelon/Commonwealth Edison; generation leadership across hydroelectric, industrial steam turbine, and a 9 GW renewable fleet; NERC Regional Entity Senior Compliance Engineer and Audit Team Lead, auditing some of the nation's largest utilities; and testing and commissioning lead on equipment up to 765 kV — the very top of the North American grid.Utility. Generator. Regulator. Consultant. Few engineers have seen all four seats. Fewer still have sat in them.His experience spans nuclear, hydro, conventional generation, renewables, oil and gas, mining — and today's data centers, where he is authoring a three-book series on data center design. He is a Licensed Professional Engineer in six states and a Licensed Electrical Contractor in Florida (Unlimited EC) — he doesn't just design the work; he's qualified to stand behind its execution.Today, as Founder and CEO of Keentel Engineering, Sonny leads 51 engineers delivering substation design, power system studies, NERC compliance, and commissioning — done right, coast to coast.Three decades. Every side of the table. One standard: accountable engineering

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