ECE Research Seminar (Virtual Event*) – 10/16/2020

October 6, 2020

Securing the Dielectric Integrity of Conventional and Emerging Power Applications

Chanyeop Park | chanyeop.park@ece.msstate.edu

Abstract: The emergence of wide bandgap (WBG) power semiconductors, advances in power electronic converter (PEC) topologies, and the improvement of device packaging and thermal management enabled the dynamic control of energy as well as the high-power-density designs of devices. However, the high-field, high-power-density, and PEC-induced mixed-mode voltage stresses accompanied by these advances pose enormous risk to the dielectric integrity and reliability of the emerging technologies as they render conventional AC dielectric solutions inapplicable and promote local electric field enhancements that cause partial discharge (PD) – the main culprit of reduced device lifetime, accelerated dielectric material aging, and increased likelihood of device failure. In this presentation, we will learn about the major causes and characteristics of conventional and emerging dielectric challenges and discuss various remedial methods that have been used in the field as well as new approaches that could effectively address these challenges.

Biographical info: Dr. Chanyeop Park is an Assistant Professor in the Electrical and Computer Engineering (ECE) department directing research of the Paul B. Jacob High Voltage Lab (HVL) at Mississippi State University (MSU).  Prior to joining MSU in August 2019, he was a Postdoctoral Fellow at Georgia Tech. He received his Ph.D. in Electrical and Computer Engineering from Georgia Tech, Atlanta, GA, USA in 2018, M.S. and B.S. in Electrical Engineering from Hanyang University, Seoul, Korea Rep. in 2013 and 2011, respectively. He conducted and managed various research projects including cryogenic dielectric gas mixtures, low-temperature plasma, cryogenic power electronics, and AC loss modeling of high-temperature superconducting (HTS) cables. His current research interests include the development of new dielectric solutions, dielectric material analysis and modeling, direct current (DC) partial discharge (PD) detection and analysis, and the development of lightning strike tolerant multifunctional composite materials for aerospace and renewable energy applications.

* For further information contact:  Dr. Jenny Du |  du@ece.msstate.edu | 5-2035

For WebEx Information, scan the QR

Meeting number (access code): 120 150 2303
Meeting password: w7xNhw2XJa2

https://msstate.webex.com/msstate/j.php?MTID=m45fe81d34d6f00fde33d06af9820bf6a

Join by video system
Dial 1206230462@msstate.webex.com
You can also dial 173.243.2.68 and enter your meeting number.

Join by phone
+1-469-210-7159 United States Toll (Dallas)
+1-415-655-0001 US Toll
Access code: 120 150 2303