Taiwei Chen (陳泰瑋) – Ph.D. Student

Taiwei Chen received his B.S. degree in Engineering Science from National Cheng Kung University (NCKU). He earned his M.S. degree in Electrical Engineering from the University of Texas at San Antonio, USA (UTSA), where he was involved in research on EMI/EMC performance in power electronics. His Master’s thesis was on “Inductor Design for Common-mode and Differential Mode Inductors” published in Dec. 2014. He has more than 6 years of experience in inverter circuit design, product testing and certification as an electrical engineer in the renewable energy industry. He is pursuing his PhD degree in Electrical Engineering at National Taiwan University. His research interests include energy harvesting power electronics, electric vehicles, improvement of microinverters, and electric power subsystem design of nano-satellites.

Selin Bagci – Ph.D. Student

Selin Bagci received the B.S. degree in Electrical and Computer Engineering in 2018 from Ulsan National Institute of Science and Technology (UNIST), South Korea. She received the M.S. in Electrical Engineering in 2020 from National Taiwan University of Science and Technology (NTUST), Taiwan. She is currently a Ph.D. student in the Electrical Engineering Department at National Taiwan University. Her research interests are in dc-dc converter development and control for photovoltaic energy harvesting applications.

Papers:

F. Selin Bagci, Richard Angsetya, Sean Logi, Katherine A. Kim, “Flexible PCB Connection Methods for Wearable Energy Harvesting Applications,” IEEE Applied Power Electronics Conference and Exposition (APEC), 2023, pp. 1881-1887, doi: 10.1109/APEC43580.2023.10131451.

Katherine A. Kim, F. Selin Bagci, and Kristen L. Dorsey, “Design considerations for photovoltaic energy harvesting in wearable devices,” in Scientific Reports, vol. 12, pp. 1-12, October 28, 2022, art. no. 18143, doi: 10.1038/s41598-022-22232-x.

F. Selin Bagci, Katherine A. Kim, Yu -Chen Liu and Yi-Hua Liu, “Evaluation of Power Maximization and Curtailment Control Methods for Converters in Wearable Photovoltaic Energy Harvesting Applications,” in IEEE Open Journal of Power Electronics, pp. 508-520, August 2022, doi: 10.1109/OJPEL.2022.3194185.

F. Selin Bagci and Katherine A. Kim, “Performance Comparison of Burst-Mode MPPT and Perturb and Observe MPPT Algorithms for Photovoltaic Energy Harvesting Applications,” in Proc. IEEE Energy Conversion Congress Exposition (ECCE), Vancouver, BC, Canada, Oct. 2021.

F. Selin Bagci and Katherine A. Kim, “Burst-Mode Maximum Power Point Tracking Algorithm for Low-Power Photovoltaic Energy Harvesting Applications,” in Proc. IEEE Energy Conversion Congress Exposition Asia, Singapore, May. 2021, pp. 1-6. 

F. Selin Bagci, Katherine A. Kim, Ting-Yu Lin and Yu-Chen Liu, “Power Profile Measurement and System Design Analysis for a Wearable Photovoltaic Application,” in Proc. International Power Electronics and Motion Control Conference – ECCE Asia, Nanjing, China, Dec. 2020, pp. 1469-1474.

F. Selin Bagci, Yu-Chen Liu, and Katherine A. Kim, “Low-Power Photovoltaic Energy Harvesting With Parallel Differential Power Processing Using a SEPIC,” in Proc. IEEE Applied Power Electron. Conf.,  Mar. 2019, pp. 2008-2014.

Bo-Kyung Yoon (윤보경) – M.S. (Co-Advisee)

Bokyung Yoon received the B.S. degree in Electrical and Computer Engineers from Ulsan National Institute of Science and Technology (UNIST) in 2018 and the M.S. degree in Electrical Engineering from UNIST in 2020. Her research interests are in analysis, control, and hardware development for energy harvesting power electronics.

Papers:

Jin Pyo Lee, Jae Won Lee, Bo-Kyung Yoon, Hee Jae Hwang, Sungwoo Jung, Katherine A. Kim, Dukhyun Choi, ChangdukYang, Jeong Min Baik, “Boosting the energy conversion efficiency of a combined triboelectric nanogenerator-capacitor,” Nano Energy, vol. 56, pp. 571-580, Feb. 2019.

Bo-Kyung Yoon, Jee-Hoon Jung, Jeong Min Baik, and Katherine A. Kim, “Realistic Circuit Modeling Using Derating Factors for Triboelectric Nanogenerators in Energy Harvesting Applications,” in Proc. International Conference on Power Electronics – ECCE Asia, May 2019.

Webinar for IEEE IA/IE/PELS Jt. Chapter Kerala, India

The IEEE IA/IE/PELS Joint Chapter in Kerala, India, invited Prof. Katherine Kim to give a webinar on “Differential Power Processing DC-DC Converters for Solar Photovoltaic Applications” on May 18, 2020. The Chapter in Kerala is very active and the webinar was well attended by the members, with over 100 attendees. Thanks to the chapter organizers for their great efforts.

Taiwan Patent:

Yu-Chen Liu, Chen Chen, Kai-De Chen, Lin, De-Jia Lu, Katherine A. Kim, and Huang-Jen Chiu. “Series Resonant Converter (串聯諧振式轉換器 ),” Taiwan Patent, April 21 , 2020.

Power Electronics Photo Contest Voting

Every year, Prof. Katherine A. Kim teaches a power electronics course. As part of the course, there is a photo contest. The photos for the Fall 2019 Introduction to Power Electronics has been posted and are open for voting.

The class’s photos and descriptions are posted here:
https://www.flickr.com/photos/72392935@N06/albums/72157712084784577

Based on the photos and descriptions, vote on your favorites here:
Voting Form – Introduction to Power Electronics Photo Contest

Voting will be open until December 18 at midnight. Participation is open to everyone, but one vote per person.

Fall 2019 Introduction to Power Electronics photo submissions

Invited Seminar at University of Macau, Macau, China

Prof. Katherine A. Kim gave a seminar on “Differential Power Processing DC-DC Converters for Solar Photovoltaic Applications” at University of Macau in Macau, China. Prof. Kim was invited by Prof. Chi-Seng Lam of the State-Key Laboratory of Analog and Mixed-Signal VLSI & Institute of Microelectronics at the University of Macau. The seminar was supported by the IEEE Macau IES Chapter.

Attendees at Prof. Kim’s seminar
In front of the State-Key Laboratory of Analog and Mixed-Signal VLSI & Institute of Microelectronics

Attended IFEEC 2019 in Singapore

Prof. Katherine A. Kim attended the  IEEE International Future Energy Electronics Conference in Singapore, on November 25-28, 2019. Prof. Kim served on the organizing committee as the Tutorial Co-Chair.

On November 25, she chaired the tutorials entitled “Multi‐Cell & Multi-Level Power Converters ‐ A Way to Go Beyond the  Limits” by Prof. Petar J. Grbović from the University of Innsbruck, Austria, and the tutorial entitled “Recent Advances in Permanent Magnet Synchronous Machines for Applications in Automotive and Renewable Energy Systems” by Dr. Rukmi Dutta and Prof. Faz Rahman, from the University of New South Wales, Australia. On November 27, Prof. Kim also served as a chair for Technical Session 22 (C2‐RET3): Renewable Energy Technologies 3.

Group at IFEEC 2019 in Singapore