Geomagnetic disturbances (GMDs) caused by solar coronal mass ejections can induce quasi-dc currents in the ac power grid, potentially leading to harmonics, transformer heating, and increased reactive power losses in the system. Voltage collapse has been recognized as the key risk posed by these geomagnetically induced currents (GICs) the grid. This talk will first briefly introduce GMD modeling and impacts on the grid, followed by an overview of large-scale synthetic/synthesized GMD storm E-field waveforms, and recent work on an integrated assessment tool to better automate GIC simulations and analysis.
This webinar was presented at 3:00 p.m. CDT on September 29, 2023.
The presentation slide set is available here.
The recording of the presentation is posted here.
Speaker:
Jonathan Snodgrass is a Senior Research Engineer at the Texas Engineering Experiment Station (TEES), at Texas A&M University, working on the team of Professor Tom Overbye in the area of large-scale electric power systems. He received his BS and MS degrees at Texas A&M University, and MS and PhD degrees at the University of Wisconsin-Madison, all in electrical engineering. His primary research area is in power system network planning and resilience, with current projects focusing on the impact of high-impact, low-frequency events (such as GMD and EMP) on the electric grid. His other research areas include electric vehicle integration, combined transmission and distribution system simulations, optimization, power system markets and microgrids. He also worked for two years at Zachry Engineering Corporation in Amarillo, TX, designing simple and combined cycle natural gas generating plants.
More about Jonathan’s research is posted in his Google Scholar page here.