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Introduction to IMT Lab. Prof. Kee-Joe Lim kjlim@cbnu.ac.kr School of Electrical Engineering Chungbuk National University http://www.cbucc.com 2014/1/1 1

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HV Technology I Condition Monitoring and Diagnosis Sensor ; I, V, PD(AE,UHF) PD measurements and signal processing(GIS, cable, TR, insulator) Degradation phenomena(tree, tracking, PD) Identification of PD location Prediction algorithm of remnant life 2

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HV Technology II Material and Design New material and process ; NC, Eng. Polymer, eco- friendly insulating materials, functional materials Design of new components with additional function(insulator, bushing, housing, surge absorber, and etc.) Evaluation of performances(BD, PD, degradation) Design for resistance to environment condition 3

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4 (with AE-pd sensor developed) Bushing embedded with v-sensor Electronic CT; 20A~20kA, 0.1% 19 th CIRED

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HV Technology III Recent Research New technology for arc extinguishing ; VI, MCCB Hybrid(active) insulation; gas/solid Nanocomposite for HVDC insulation Eco-friendly insulation technique; SF6, Recyclable, Insulation design of HVDC apparatus ; insulator, cable, converter TR, spacer, DCCB, Funding company; HHI, Hyosung, LSC, LSIS, To be designated as HU(Hyosung-university) Lab(2012) 5

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6 Magnetic field distribution in arc extinguishing room of MCCB Space charge distribution in HDPE blended EVA RMF type contactor of VI (170kV/40kA)

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Piezoelectric ceramics I Piezoelectric ceramics Ceramics for sensor application Ceramics for high vtg application; ultrasonic motor, PTR, vibrator, pump Design and Fabrication of devices Design by FEA and equivalent circuit method Driving and Measurements 7

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8 (First USM developed in Korea)

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Piezoelectric ceramics II Recent Research Design tool for annular type ultrasonic motor USM for AF/ for automobile Valveless piezoelectric pump Piezo actuator for haptic device in smart phone Funding company; Samsung, H Motors, Jahwa Annular type USMs and its design tool are applied to the Samsumg DSLR cameras 9

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10 Annular type ultrasonic motorValveless piezoelectric pump Screw type ultrasonic motor BLT

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11 High torque USM for automobile

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12 Impact type USM for AF of smart phone

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Flat Panel Display Flat type fluorescent lamp for LCD back light or extreme illumination 10mm th, >80inch(diagonal size) Principle; Dielectric barrier discharge Inorganic EL panel Flexible, 1mm th, low power consumption Application; 2 LCD backlight, Ad. Organic ELD Full color, fast response, low power, radiative Flat type lamp ;PAT registration and being produced in company at now. 13

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14 Thickness; 10mm Size; more than 20inch(diagonal) Brightness; 8,000nit(cd/m 2) Uniformity; 97% PAT 10-036938

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Member; Professor 1981.3. Established Lab Prof. Lim have moved to CBNU from ADD on March 1, 1981 Service for CBNU Dean of Office of Planning(2003~2004) Dean of IUCF(Industry University Cooperation Foundation, 2004) Service for Academic Institutes Vice-president(2003), Auditor(2004), Editor-in-chief(2002), Director of KIEE(electrical engineers) President(2010), Editor-in-chief(2001), Director(1995~2001) of KIEEME(electrical and electronic material engineers) 15

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Member; Professor International academic activities Founder/Organizer of 1992 Korea-Japan joint conf. on electrical and electronic materials(May 28, 1992, CBNU) TPC member of 5 th ICPADM(May, 1997, Seoul) Founder/Organizer of 1999 Asian conf. on electrical insulation diagnosis( Nov. 18, 1999, CBNU); Prof. Matsuura(J), Prof. Yan(C) Founder/Co-chairman/organizer of CMD2006(April, 2006,Changwon); KIEEME,IEEE-DEIS, IET, CIGRE, JIEE, CES Co-chairman of CMD2008(April, 2008, Beijing) Founder/Organizer / Chair of IAC of ICAE(advanced electromaterials) 2011( Nov. 2011, Jeju); 980papers/23countries Organizer/ Chair of ICAE 2013(Nov. 2013, Jeju); 1100p/25c 16

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Member Alumni(1981~2013) Ph.D. ; 26 MS ; 107 Graduate students Ph.D.; 9 (incld part time ) MS; 6 17

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Publication(1981~2011) International journal (SCI) ; 33 Domestic journal; 118 Intl Conf. Proceeding; 209 Domestic Conf. Proceeding; 314 Sub total; 674 Book; 5 Patent; 16 R&D Report ; 50 Total 745 18

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Equipments for High Voltage Technology Design and simulation FEM software Maxwell Fabrication Ball mill, sieve, hot press Ultrasonic disperser Homogenizer(shear mixer) Planetary centrifugal mixer Measurements HVAC(100kV), HVDC(200kV), impulse source(600kV) PD detector(3D; n q) Tracking test, Arc test, Treeing test C & tan meter, High resistance meter Electrometer, Oscilloscope XRD, SEM and etc. 19

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Equipments for piezoelectric devices Design and simulation FEM software ATILA ( Magsoft co. ) fabrication Ball mill, sieve Press(30ton) furnace (1500 C) Silk screen printer measurement Laser vibrometer, Impedance analyzer, Frequency response analyzer D 33 meter Power amplifier, Function generator Tachometer, Current and voltmeter, Oscilloscope, thermometer XRD, SEM and etc. 20

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EINA, No.9, Nov.2002 21

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Bulletin of KIEEME, No.11, Nov. 2002 22

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http://www.cbucc.com . CMD2006 11 (SCI) 5 ( ) 24

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