Attended IEEE Seoul Section Student Paper Contest 2017 in Seoul, Korea

Prof. Katherine A. Kim and undergraduate student intern Bo-Kyung Yoon attended the IEEE Seoul Section Student Paper Contest 2017 at Hongik University, Seoul, Korea. Bo-Kyung presented her paper on “Circuit Modeling of a Three-Plate Triboelectric Nanogenerator for Energy Harvesting” at the competition (picture below). As one of the few undergraduate students in the competition, she presented and took questions on her research at the same level as the graduate students in the competition. A job well done.

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Research Exhibited at International Public Transportation Forum

UloopDemo

Graduate student Hyeun-Tae Cho represented the PEARS lab in exhibiting the U-Loop future transportation system at the International Public Transportation Forum held in Ulsan, South Korea. The research project on the U-Loop is a collaborative project, with the PEARS Lab designing and implementing the linear motor drive and photovoltaic system. Hyeun-Tae helped demo the small-scale U-Loop prototype at the exhibition, as show below (original photo here).

 

For more information, please UNIST’s New Center Article: UNIST’s U-Loop Displayed at International Public Transport Forum or 한국형 하이퍼루프, ‘U-Loop’모델, 대중교통 포럼에 첫 선

 

Attended ACEPT 2017 in Singapore

Prof. Katherine Kim attended the Asian Conference on Energy, Power and Transportation Electrification (ACEPT) in Singapore on October 24-26, 2017. On Wednesday, October 25, Prof. Kim served as the session chair for “Parallel Session 5: Microgrid and Smart Grid (MGSG).” On Thursday, October 26, Ph.D. student Kai-De Chen from National Taiwan University of Science and Technology (NTUST) presented the paper entitled “Output Double-Line Frequency Ripple Reduction Method for High Power Density Interleaved Boost Converters in Power Factor Correction Applications,” which is a collaboration paper with PEARS Lab.

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Attended S2PC 2017 in Changhua, Taiwan

S2PC2017_PEARS

Prof. Katherine Kim and graduate student Hyeun-Tae Cho attended the Symposium on Semiconductor Power Conversion (S2PC) in Changhua, Taiwan on October 13-15, 2017.

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On October 14, 2017, Hyeun-Tae Cho presented a poster on “Model and Control of a Scaled-Down Permanent Magnet Linear Synchronous Motor (PMLSM) for High-Speed Transportation Systems” during Poster Session I (A). Prof. Katherine Kim  was a Session Chair for Oral Session II.

 

Attended KIPE 2017 Annual Conference

PEARS Lab members attended the Korean Institution of Power Electronics (KIPE) 2015 Annual Conference (전력전자학술대회). The PEARS Lab presented five papers during the conference:

Hoejeong Jeong presented a poster for the paper entitled “GaN Boost Converter Development for High Power Density” on July 4, 2017.

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Hyunji Lee presented the paper entitled “Comparison of Two Parallel Differential Power Processing Configuration” on July 5, 2017.

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Kyoungjun Kwon presented the paper entitled “Photovoltaic Panel Orientation Study for Tube-Enclosed Transportation Systems” on July 5, 2017.

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Hyeun-Tae Cho presented a poster for the paper entitled “Sensorless Field-Oriented Control Design for High-Power 3-Level PMSM Drive Inverter” on July 6, 2017.

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Kyu Taek Oh presented a poster for the paper entitled “Comparison & Analysis of The Permanent Magnet DC Motor Control Method” on July 6, 2017.

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Attended IFEEC 2017-ECCE Asia in Kaohsiung, Taiwan

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Prof. Katherine Kim and graduate students Hyunji Lee and Kyoungjun Kwon attended IFEEC 2017-ECCE Asia in Kaohsiung, Taiwan, on June 3-7, 2017. Hyunji Lee presented her research paper on “Differential Power Processing Converter Design for Photovoltaic-Powered Charging Bag” as shown below.

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Kyoungjun Kwon also presented his research paper on “Photovoltaic Panel Configuration Study for Tube-Enclosed Transportation Systems” as shown below.

 

Attended ICSET 2016 in Hanoi, Vietnam

Prof. Katherine Kim and graduate student Xuan Hung Mai attended the IEEE International Conference on Sustainable Energy Technologies (ICSET) in Hanoi, Vietnam on November 14-16, 2016.

HungICSET2016

Xuan Hung Mai presented a poster on “Electric-Thermal Photovoltaic Model Characteristics Validation” on November 15 in the Photovoltaics and Solar Thermal Technical Session (see photo below).

Attended S2PC 2016 in Nagaoka, Japan

Prof. Katherine Kim and graduate student Kyoungjun Kwon attended the Symposium on Semiconductor Power Conversion (S2PC) in Nagaoka, Japan on October 14-16, 2016. Prof. Katherine Kim gave a presentation on “Differential Power Processing Converter Techniques for Emerging Photovoltaic Applications” (see photo below).

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Kyoungjun Kwon presented a poster on “Buck Converter Development for Charging and Characterization of Low-Power Battery Cells” (see photo below).

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Visited National Taiwan University of Science and Technology

Prof. Katherine Kim visited the Power Electronics Lab at National Taiwan University of Science and Technology (國立臺灣科技大學) in Taipei, Taiwan, and also gave a talk on “Photovoltaic Power Converters for Smart Grid Capability” at the PELS/IAS/IES Taipei Joint Symposium on August 10, 2016. The symposium featured research presentations from National Taiwan University of Science and Technology (NTUST), National Taiwan University (NTU), and National Tsing Hua University (NTHU).

PELS,IAS,IES Taipei Joint Symposium

PELS/IAS/IES Taipei Joint Symposium Group Photo

Additional photos: http://pelab.et.ntust.edu.tw/PELS,IAS,IES%20Taipei%20Joint%20Symposium_2016.html

Attended IPEMC 2016-ECCE Asia in Hefei, China

Prof. Katherine Kim and graduate student Hyunji Lee attended IPEMC 2016-ECCE Asia in Hefei China. Hyunji Lee presented her research paper on “Differential Power Processing Converter Design for Photovoltaic Wearable Applications” as shown below.

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Prof. Katherine Kim gave a career development talk at the IEEE PELS Women in Engineering breakfast entitled “Impedance Matching your Power Electronics Career” and served as a Session Chair for the “Smart Grid Technologies I” Session.

Attended APEC 2016 in Long Beach, CA, USA

Prof. Katherine Kim attended the Applied Power Electronics Conference 2016 in Long Beach, CA, USA in March 2016.

Prof. Kim and Prof. Jeehoon Jung (UNIST, Electrical and Computer Engineering) gave a Professional Education Seminar on “Photovoltaic Modeling and Why it Matters for Power Electronics.”

At the IEEE PELS Women in Engineering breakfast, Prof. Katherine Kim gave a career advice talk entitled “Impedance Matching your Power Electronics Career” and served as a Session Chair for the “Renewable Energy Systems” technical session.

Prof. Katherine A. Kim Elected as Member-At-Large to IEEE PELS

Prof. Katherine A. Kim has been elected to serve as a Member-At-Large for the IEEE Power Electronics Society (PELS) Administrative Committee. She will serve for three years from 2016 to 2018. Prof. Kim has previously been involved in PELS as the PELS Student Membership Chair in 2013-2014 and as a member of the PELS Student and Young Professionals Committee from 2013 to present. She is honored to receive the Member-At-Large position and looks forward to contributing to the IEEE PELS and the world-wide power electronics community.

The official annoucement can be found here: http://www.ieee-pels.org/mobile-news/2654-results-of-the-2015-pels-member-at-large-election

Fall 2015 Update

The Fall 2015 semester is underway at UNIST!

This semester, Prof. Katherine A. Kim is teaching an undergraduate and graduate course as follows:

EE313: Introduction to Control [자동제어공학개론]
Level: Undergraduate Course
Description: Introduction to Controls is an upper-level undergraduate course where you will learn the fundamentals of dynamic system analysis and control theory. Projects and teamwork are important aspects of this flipped-learning-based class. The primary goal of the course is for students to finish the semester with a clear understanding of various realistic dynamic systems and how to design and analyze an effective controller.
Video Lectures: Introduction to Control EE313

ECE839: Special Topics – Power Electronics for Energy Harvesting [에너지 하베스팅 전력전자공학]
Level: Graduate Course
Description: Power Electronics for Energy Harvesting is a Special Topics PhD level course where you will learn the basics of energy harvesting technologies and associated power electronics topology and control methods. The primary goal of the course is for students to gain a clear understanding of power electronics techniques for low-power energy harvesting applications.

We are excited to have a new undergraduate student, HoaeJeong Jeong (정회정), who has joined the PEARS Lab!

Two journal papers from the PEARS Lab have also come out this Fall:

  1. “Reexamination of Photovoltaic Hot Spotting to Show Inadequacy of the Bypass Diode,” by Katherine A. Kim and Philip T. Krein, in IEEE J. Photovoltaic., vol. 5, no. 5. pp. 1435-1441, Sept. 2015.
  2. “Fluorescent Light Energy Harvesting Using a Capacitive Touch Screen,” by Seulkirom Kim, Katherine A. Kim and Franklin Bien, in Electronics Letters, vol. 51, no. 21. pp. 1695-1697, Oct. 2015.

Attended IFEC 2015 in Dearborn, MI, USA

The UNIST 2015 IEEE International Future Energy Challenge (IFEC) Team traveled to Dearborn, MI, USA, to test their wireless power transfer prototype for the Topic A (High-efficiency Wireless Charging System for Electric Vehicles and Other Applications) competition. Team members were Sangyeong Jeong, Mina Kim, Hyeun-Tae Cho, and Zhanibek Bizak. Faculty advisors were Prof. Katherine A. Kim, Prof. Jeehoon Jung, and Prof. Jingook Kim.

The four-student first-time UNIST Team competed in the IFEC competition and the gained valuable experience designing, building, and testing power electronics hardware. Through the competition, students learned to work as a team and gained experience in making challenging, real-world power electronics hardware that they will use as finish their education and go on to graduate school.

The UNIST Team can be seen testing their Wireless Power Transfer prototype at the competition below. Additional pictures of the IFEC UNIST and other teams at the competition can be found here: https://www.flickr.com/photos/72392935@N06/sets/72157656023270076

IFEC 2015 UNIST Team

Attended COMPEL 2015 in Vancouver, Canada

Graduate student Hyunji Lee attended the 2015 Workshop on Control and Modeling for Power Electronics (COMPEL) in Vancouver, Canada. She presented a poster for the paper entitled “Comparison of Photovoltaic Converter Configurations for Wearable Applications” in the Energy Harvesting and Power Management Poster Session on Tuesday, July 14, 2015. Hyunji Lee was also honored to receive the 2015 COMPEL Student Travel Grant Award to help make her trip to the conference possible.

Attended KIPE 2015 Annual Conference

PEARS Lab members and Advanced Power Interface & Power Electronics Lab (APIPEL) members attended the Korean Institution of Power Electronics (KIPE) 2015 Annual Conference (전력전자학술대회). The PEARS Lab presented three papers during the conference:

Xuan Hung Mai presented a poster for the paper entitled “Photovoltaic Hot Spot Detection Method Integrated into a Boost Converter” on Tuesday, July 7, 2015.

Xuan Hung Mai

Hyunji Lee presented the paper entitled “Efficiency Analysis fo Photovoltiac Configurations in Wearable Charging Applications” on Thursday, July 9, 2015.

The paper entitled “A Dynamic Model of Single Crystalline Photovoltaic Cells Incorporating Thermo-Electric Characteristics” was also presented on Thursday, July 9, 2015.

Attended IEEE WoW 2015 in Daejeon, Korea

UNIST ECE professors (Prof. Jingook Kim, Prof. Jeehoon Jung, and Prof. Katherine Kim) and students (Sangyeong Jeong, Mina Kim, and Hyeun-Tae Cho) made a strong showing at the IEEE PELS Workshop on Emerging Technologies: Wirelss Power (WoW) on June 5-6 at KAIST, Daejeon, Korea. Three papers were presented during the conference by the students:

Sangyeong Jeong presented the paper entitled “Analytical Investigation of Optimal Wireless Power Transfer Topology for Electric Vehicles” on Friday June 5.

Mina Kim presented the paper entitled “Design Methodology of a 500 W Wireless Power Transfer Converter,” on Saturday June 6.

Hyeun-Tae Cho presented the paper entitled “Comparison of Input Power Factor Correction Techniques for Buck Converters in Single-Phase Wireless Power Transfer Systems” on Saturday June 6.


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Congratulations to Hyeun-Tae Cho for sucessfully completing his first conference presentation!