Plasma and Dielectrics Laboratory
@PDLGaTech
We conduct research in the field of gas, liquid, and solid dielectrics for various applications including: Aerospace Systems, Naval Systems, Switchgear...
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Exciting News! Our lab is on the move! After years of meticulous planning and teamwork, we're thrilled to announce our relocation to a new facility. This move signifies a significant milestone, enabling us to expand our capabilities and delve deeper into groundbreaking research.
Ning Guo presented groundbreaking research on vacuum interpret arc duration detection at the HOLM Conference and is a finalist for the HOLM Young Investigator Award! Join us in celebrating his achievements! #HOLMConference #ScienceInnovation #YoungInvestigator
#AvailableForLicense: A dual-actuation fast mechanical switch for future isolated, highly meshed DC power systems with high power density and efficiency requirements. Offers fast tripping speeds and enhanced voltage-withstand capabilities. #DCpowersystems ow.ly/G77p50OWc6k
We had a great time connecting with students during the ME Undergraduate Research Fair hosted by Pi Tau Sigma. During the event we officially opened the application process to PURPLE, PDL’s undergraduate research program. Students of all majors can apply through our website.
Feeling honored to have met with Energy @SecGranholm at @ARPAE's 2023 Energy Innovation Summit. We were proud to share our team’s innovative MVDC Hybrid Breaker and SF6-Free AC Line Breaker. #ARPAE23 #WattEDGE @GeorgiaTech @GeorgiaTech_ECE @gatechengineers
Dr. Graber and Katherine Rosinski (artist) at Science Art Wonder's exhibition during Science & Engineering Day at Georgia Tech. To lear more about her painting, visit our YouTube Channel. buff.ly/3YfdUjW
Check out this video to learn more about EDISON! buff.ly/3y1jyux
Inovation #4 Sequential Insertion. Once the current is commutated to the solid-state submodules, the IGBTs will open and clear the fault. We don’t wait for the FMS to be completely open but start tripping IGBT modules sequentially.
Inovation #3: New hybrid breaker topology. The main current path consists only of the FMS and is, therefore, very efficient. Once a fault is detected, the fault current commutation circuit, or FC3, commutates the current to the solid-state submodules, consisting of MOVs and IGBTs
The second innovation is the switching dielectric medium for the FMS. We employed the novel use of supercritical carbon dioxide as a dielectric medium, which combines high dielectric strength, great heat transfer capability, and low viscosity.
Inovation #1: Fast mechanical switch (FMS) based on a piezoelectric actuator directly integrated into the switching chamber. This comes with several advantages: First, these actuators are very fast, but just as important, they are very controllable.
EDISON is a DC circuit breaker rated 12 kV and 2 kA with on-state losses of less than 0.01% and a switching speed of fewer than 500 microseconds. The breaker has a hybrid topology with both mechanical and solid-state components.
One of the critical challenges with DC fault current breaking is the fast current rise. The reactance in DC grids determines the rate of rise of fault current, not its maximum. Slow action leads to large amount of energy, which will have to be absorbed by the breaker.
Researcher Highlight: Maryam Tousi is a PDL Research Engineer and leads our EDISON project. She coordinates our research efforts and ensures we meet our project milestones. In her free time, she enjoys movies, baking pastries, and spending time with her family.
This week we will be featuring our research on the EDISON project. Sponsored by ARPA-E and in collaboration with CAPS at Florida State University. EDISON is a novel hybrid DC circuit breaker that enables multi-terminal DC power systems.
Check out artist Katherine Rosinski's interpretation of our research. In collaboration with Science Art Wonder, an Atlanta-based organization focused on using art as a visual medium to communicate science. buff.ly/3YfdUjW
Thank you to everyone in the PDL family for their amazing work, friendship, collegiality, and professionalism. Looking back at 2022, we are extremely proud of what we have accomplished as a group. From the PDL family, happy holidays and a prosperous new year.
#AvailableforLicense: Lightweight, cryogenic conducting wires with improved gravimetric power density for cryogenic electronics using copper-clad lithium. Could be key to the aerospace industry’s development of electric aircraft buff.ly/3Fferdm
Join us in wishing a happy birthday to, the mastermind behind our lab, Dr. Graber.
Join us in wishing a happy birthday to, the mastermind behind our lab, Dr. Graber.
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