Synchronized Waveform Measurement and Applications in Power Systems 
Abstract: Synchronized power system measurements, particularly synchronized phasor measurements, have received a lot of attention in the recent years for wide area situational awareness and various other functions. Phasors, however, effectively filter out a lot of information that may be useful for other applications, particularly in the presence of power system disturbances and heavy deployment of inverter-based resources (IBR). Waveforms, depending on sampling rate/resolution, provide a more granular and authentic representation of voltage and current in power systems. With the recent advancements in grid sensor technologies, it is now possible to obtain time-synchronized waveform measurements from various points on a power system in order to obtain “synchro-waveforms.” Synchro-waveforms open the door for a more advanced power system monitoring, situational awareness, and system performance assessment. Synchro-waveforms have innovative applications in both apparatus and power system management. Areas of particular interest are asset monitoring, incipient fault detection/location, protection, as well as control. Faster synchro-waveforms also can play a critical role in monitoring inverter-based resources (IBR), their dynamics and their responses to system disturbances.
In this presentation, Dr. Rahmatian will provide an overview of advanced voltage and current sensors providing synchro-waveforms and their potential application, with focus on grid resiliency. The presentation will be focused on one or two applications, i.e., accurate fault location and high-frequency harmonics detection near IBRs.
Bio: Farnoosh Rahmatian, Ph.D., P.Eng., Fellow IEEE
Dr. Rahmatian is a co-founder and president of NuGrid Power Corp. He has contributed to several techniques for power system measurement and automation over the past 30 years. He is a Professional Engineer and a Fellow of the IEEE for contribution to optical voltage and current sensors. He is a past Chair of the IEEE Power & Energy Society’s (PES) Technical Council, active at PES Power System Relaying and Control as well as Power System Instrumentation and Measurements committees. He is also active in CIGRE (Distinguished Member), IEC, and NASPI (North American Synchrophasor Initiative). His present technical focus is on wideband optical sensors, synchronized measurement systems, digital substations, integration challenges of distributed energy resources, high-speed measurement of voltage and current, travelling-wave-based fault location, and grid resiliency efforts. Farnoosh has over 100 technical papers and 12 patents to his credit.
Join from a PC, Mac, iPad, iPhone or Android device:
Please click this URL to start or join. https://iastate.zoom.us/j/94087524568?pwd=WXc4eWtLaWJJKzNpcHZydlptOUZIZz09
Or, go to https://iastate.zoom.us/join and enter meeting ID: 940 8752 4568 and password: 324328
Join from dial-in phone line:
Dial: +1 312 626 6799 or +1 646 876 9923
Meeting ID: 940 8752 4568