In this webinar Farnoosh Rahmatian will discuss how voltage and current sensors are the eyes and ears of the electric power grid. Traditionally, each specific application/function is performed by a device connected to dedicated sensors (e.g., instrument transformers) with very specific performance characteristics. With the evolution of the grid, there is a need for significant instrumentation investment to “see and hear” the grid better. There are substantial economic advantages to having sensors that have the performance (better linearity and bandwidth) to feed a multitude of applications concurrently, and digitization is key in achieving that. Digital voltage and current (V/I) sensors, if planned and used properly, can support the measurement needs of the grid economically, and lead to a more resilient and efficient grid.
In this webinar, we look at some of the challenges and possibilities that digital V/I sensors offer, including:
- High-level overview of V&I sensing technologies
- Waveforms (point-on-wave) versus calculated quantities (e.g., phasors)
- Measurement speed, sampling rate versus bandwidth
- The need to observe faster phenomena in the evolving grid
- Measurement data sharing amongst applications and importance of time synchronization
- Layered data management architecture for reliability and resiliency
Dr. Rahmatian is co-founder and president of NuGrid Power Corp. During the past 30 years he has contributed to several techniques for power system measurement and automation. He is a Professional Engineer and a Fellow of the IEEE for contribution to optical voltage and current sensors. He is the immediate past Chair of the IEEE Power & Energy Society’s (PES) Technical Council, active at PES Power System Instrumentation and Measurements as well as Power System Relaying and Control Committees. Farnoosh is the co-lead of NASPI PSRVTT; he is also active at CIGRE, IEC, and CSA. His present focus areas include synchronized measurement systems and applications in active grids, non-intrusive high-speed measurement of high voltage on the grid, optical sensors, digital substations, microgrids and grid resiliency efforts. Farnoosh has co-authored more than 90 technical papers and 11 patents.
Date: May 26, 2021
Time: 10:00am PT / 1:00pm ET (1 hr.)
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