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).

강연사진2

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

KakaoTalk_20161018_232541163

 

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.

UNIST_PEARSLab_ECCEAsia2016

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.


WoW2015_조현태2
Congratulations to Hyeun-Tae Cho for sucessfully completing his first conference presentation!

Students to Compete in 2015 International Future Energy Challenge

A team of four undergraduate student (including PEARS Lab students Hyeun-Tae Cho and Zhanibek Bizak) has been selected to compete in the final competition of the 2015 IEEE International Future Energy Challenge. They are competing in Topic A where they are building a High-Efficiency Wireless Charging System for Electric Vehicles and Other Applications. The team is currently building and testing the wireless charging system in preparation for the final competition at the University of Michigan-Dearborn, MI, USA, in July 2015.

Team members (as shown in the picture) are Zhanibek Bizak, Sangyeong Jeong, Mina Kim, and Hyeun-Tae Cho. Faculty advisors are Prof. Katherine A. Kim, Prof. Jeehoon Jung, and Prof. Jingook Kim.

Outstanding Teaching Award

Prof. Katherine Kim was honored to receive an “Outstanding Teaching Award” from the President of UNIST on March 18, 2015. She taught EE313: Introduction to Control in Fall 2014 and utilized a “flipped-learning” approach with video lectures, which are publicly available on YouTube: https://www.youtube.com/playlist?list=PLmK1EnKxphikZ4mmCz2NccSnHZb7v1wV-

Prof. Kim would like to thank her EE313 students for being very responsive and adaptive to her non-traditional method of teaching, and for giving her excellent feedback on how to further improve the course. She plans to teach the course again in Fall 2015.

Spring 2015 Update

The spring 2015 semester has started at UNIST!

 

This semester, Prof. Katherine A. Kim is teaching a newly-established graduate course on power systems (based on the previous Special Topics course).

ECE560: Power Systems [전력시스템]
Level: Masters Course
Description: Power Systems is a graduate level course where you will learn the basics of the electric power grid and present-day research challenges in power systems. The primary goal of the course is for students to gain a clear understanding of how the power grid and power systems functions and to be able to communicate that understanding to their peers.

Also, two new M.S. students have joined the PEARS Lab:

Check out their profiles under the People tab.

IEEE IAS 2014 Annual Meeting Attendance

Prof. Katherine A. Kim attended the IEEE Industrial Applications Society Annual Meeting on October 5-9, 2014 in Vancouver, Canada.

At the meeting she:

  1. Gave an update on the Student/Young Professional activities as the Student Membership Chair of the IEEE Power Electronics Society
  2. Presented a poster entitled “Hot Spot Prevention Methods for Photovoltaic Systems”
  3. Chaired the “Student Technical Session”

Fall 2014 Update

Katherine A. Kim (김예린) has officially started as an Assistant Professor in the School of Electrical and Computer Engineering at Ulsan National Institute of Science and Technology (UNIST). In Fall 2014, she will be starting up her research lab and teaching the following courses:

EE313: Introduction to Control [자동제어공학개론]
Level: Undergraduate 3rd-year course
Description: This course introduces fundamentals of linear systems control: mathematical modeling, analysis, and design of systems, transfer function, root locus, bode diagram, Nyquist method, and state space method.

ECE637: Special Topics: Power Systems [전자회로설계및응용특수토픽III]
Level: Masters Course
Description: This special topic course on Power Systems is a graduate level course where you will learn the basics of the electric power grid and the challenges of moving towards a more intelligent grid.