Goddard Engineering and Technology Directorate (ETD) Calendar


The ETD Events Calendar list upcoming engineering seminars, colloquiums, conferences, town halls and other events of interest to the ETD engineering community. Explore a world of knowledge and innovation though a curated lineup of insightful and engaging events. This information supports a journey of discovery, where experts and enthusiasts converge to share ideas, explore cutting-edge technologies and foster a community of collaboration and learning.



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Power Grid Monitoring and Security

February 7, 2023 @ 3:00 pm - 5:00 pm


ABSTRACTThe talk will provide an overview on the effort of power grid wide-area monitoring and observations that were made possible from the grid edge synchronized data. The critical roles of wide-area phasor measurement in situation awareness, operation, and control will be discussed. The concept of electromechanical wave propagation in power grid will be demonstrated using measurement data collected from the actual grids. Applications of time synchronized data in event location, oscillation location detection, oscillation damping control, and inertia estimation will be discussed.

The possible back up timing system using pulsar signal will be discussed.

Photo of Dr. Yilu Liu.
Dr. Yilu Liu

SPEAKER Yilu Liu received her M.S. and Ph.D. degrees from the Ohio State University, Columbus, in 1986 and 1989. She received the B.S. degree from Xian Jiaotong University, China.

Dr. Liu currently holds the Governor’s Chair at the University of Tennessee and Oak Ridge National Laboratory. She is also the deputy director of the DOE/NSF engineering research center CURENT (curent.utk.edu). She led the effort to create the North American power grid Frequency Monitoring Network FNET/GridEye (fnetpublic.utk.edu, powerit.utk.edu). Dr. Liu is an expert in large grid dynamic modeling, simulations, and monitoring.

Dr. Liu is a member of National Academy of Engineering, a member of the National Academy of inventors, a fellow of IEEE. She can be reached at Liu@utk.edu.


February 7, 2023
3:00 pm - 5:00 pm
Event Category: