Search Results - "Tae Kuk Ko"

Study on a Series Resistive SFCL to Improve Power System Transient Stability: Modeling, Simulation, and Experimental Verification by Byung Chul Sung, Byung Chul Sung, Dong Keun Park, Dong Keun Park, Jung-Wook Park, Jung-Wook Park, Tae Kuk Ko, Tae Kuk Ko

“…This paper presents a study to determine the optimal resistive value of a superconducting fault-current limiter (SFCL) for enhancing the transient stability of…”
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A Study on the No Insulation Winding Method of the HTS Coil by CHOI, Sukjin, HYUN CHUL JO, YOUNG JIN HWANG, HAHN, Seungyong, TAE KUK KO

“…This paper reports a study on BSCCO and ReBCO HTS (high temperature superconducting) test coils, layer-wound and double-pancake, with and without turn-to-turn…”
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Design and fabrication of permanent mode magnet by using coated conductor by Lee, Hee-Gyoun, Kim, Jae-Geun, Lee, Sun-Wang, Kim, Woo-Seok, Lee, Seung-Wook, Choi, Kyeong-Dal, Hong, Gye-Won, Ko, Tae-Kuk

“…Coated conductors suitable for the fabrication of permanent mode high Tc magnets are suggested and the fabrication method of permanent mode magnets using…”
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Bipolar resistive switching behavior in Ti/MnO2/Pt structure for nonvolatile memory devices by Yang, Min Kyu, Park, Jae-Wan, Ko, Tae Kuk, Lee, Jeon-Kook

“…This study examined the electrical properties of Ti/MnO2/Pt devices with stable and reproducible bipolar resistive switching behavior. The dependency of the…”
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Effect of Screening Current Induced Field on Field Quality of an Air-Core HTS Quadrupole Magnet by Baek, Geonwoo, Kim, Junseong, Han, Seunghak, Yoon, Yong Soo, Lee, Sangjin, Ko, Tae Kuk

“…An air-core high-temperature superconducting (HTS) quadrupole magnet has many advantages for heavy-ion accelerator applications due to the elimination of the…”
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A New Quench Protection System Using Dual-Capacitor Switching for Fast Energy Extraction From HTS Magnets by Choi, Yojong, Lee, Woo Seung, Song, Seunghyun, Jeon, Haeryong, Ko, Tae Kuk

“…The high-temperature superconducting magnets with high magnetic field can store a relatively large amount of energy because of their large inductance and…”
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Visualization Study on Boiling of Nitrogen During Quench for Fault Current Limiter Applications by Kwanwoo Nam, Kang, H., Chanjoo Lee, Tae Kuk Ko, Bok-Yeol Seok

“…For the development of a 13.2 kV/630 A bifilar winding type high-Tc superconducting fault current limiter (SFCL), a visualization study has been conducted to…”
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PID Control of an Electromagnet-Based Rotary HTS Flux Pump for Maintaining Constant Field in HTS Synchronous Motors by Jeon, Haeryong, Lee, Jeyull, Han, Seunghak, Kim, Ji Hyung, Hyeon, Chang Ju, Kim, Ho Min, Kang, Hyoungku, Ko, Tae Kuk, Yoon, Yong Soo

“…Rotary HTS flux pumps are suitable for cryogenic applications, where it is difficult to implement direct physical connections between the device in question…”
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Estimation of the Engineering Critical Current Criteria for HTS Wire Carrying an Alternating Current by Jiho Lee, Tae Kuk Ko

“…This paper deals with a method to estimate the engineering critical current criteria for high temperature superconducting (HTS) wire in alternating current…”
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Charging Characteristics of Rotary HTS Flux Pump With Several Superconducting Wires by Han, Seunghak, Lee, Jeyull, Jeon, Haeryong, Kim, Ho Min, Kim, Ji Hyung, Jo, Young-Sik, Kim, Hyung-Wook, Ko, Tae Kuk, Yoon, Yong Soo

“…High-temperature superconducting (HTS) flux pumps are used to charge HTS coils at cryogenic temperatures without thermal and mechanical contact with the power…”
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A Novel Magnetic Field Active Shim Method for Air-Core High-Temperature Superconducting Quadruple Magnet by Kim, Junseong, Baek, Geonwoo, Lee, Woo Seung, Lee, Sangjin, Zhang, Zhan, Ko, Tae Kuk

“…An air-core high-temperature superconducting quadruple magnet (AHQM) is composed of high-temperature superconductor (HTS) coils without an iron yoke. An AHQM…”
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Experimental Study on Thermal Behavior of HTS Coils With Quasi-Insulation Winding Method at Overcurrent Operation by Kim, Jinsub, Kim, Hyungjun, Lee, Jeyull, Ko, Tae Kuk

“…Recently, superconducting power applications by using the high-temperature superconducting (HTS) tape have been widely researched due to the development of the…”
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Power Quality Improving Operations of a Flux-Lock Type SFCL Integrated With Voltage or Current Controlled-Voltage Source Inverter by LIM, Sung-Hun, LEE, Su-Won, MOON, Young-Hyun, KIM, Jae-Chul, KO, Tae-Kuk

“…In this paper, the flux-lock type superconducting fault current limiter (SFCL) integrated with a voltage source inverter (VSI) controlled with its output…”
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Effect of Crossover Turns in Double-Pancake Winding on Magnetic Field Homogeneity of HTS NMR Magnet by Baek, Geonwoo, Lee, Jiho, Lee, Woo Seung, Yoon, Yong Soo, Ko, Tae Kuk

“…Field homogeneity of a superconducting magnet is a critical factor for nuclear magnetic resonance (NMR) spectrometers. For REBCO high-temperature…”
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Fabrication and Charging Test of HTS Field Windings Using HTS Contactless Rotary Excitation Device by Kim, Ji Hyung, Quach, Huu Luong, Boo, Chang-Jin, Yoon, Yong Soo, Jeon, Haeryong, Han, Seunghak, Ko, Tae Kuk, Kim, Hyung-Wook, Jo, Young-Sik, Park, Heui Joo, Lee, Jihoon, Lee, Haigun, Kim, Ho Min

“…This paper presents the results of the fabrication and preliminary charging test of second-generation high-temperature superconducting (2G HTS) coils for the…”
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Study on Quench Detection of the KSTAR PF Coils Using Numerical Compensation of Inductive Voltages With Genetic Algorithm by Kim, Jinsub, An, Seok Chan, Choi, Yojong, Ko, Tae Kuk, Chu, Yong

“…A quench detection system for Korea Superconducting Tokamak Advanced Research (KSTAR) Poloidal Field (PF) coils is indispensable against the occurrence of a…”
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Experimental Analysis on AC Loss and Fault Current Test of HTS Coils Co-Wound With Various Inserted Materials by Kim, Jinsub, Nam, Seokho, Jeon, Haeryong, Kim, Junseong, Jang, Jae Young, Ko, Tae Kuk

“…A significant number of recent studies have explored the impact of many kinds of winding insulation conditions on high-temperature superconducting (HTS) coils…”
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A Novel Fault Diagnosis Method for High-Temperature Superconducting Field Coil of Superconducting Rotating Machine by Song, Seunghyun, Ko, Tae Kuk, Choi, Yojong, Lee, SangGap

“…In this paper, a new method is presented for sensitive quench detection in high-temperature superconductor (HTS) rotating machinery. The normal zone…”
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Characteristics of Contactless Power Transfer for HTS Coil Based on Electromagnetic Resonance Coupling by Kim, Dae Wook, Chung, Yoon Do, Kang, Hyoung Ku, Yoon, Yong Soo, Ko, Tae Kuk

“…This paper describes a operating characteristics of contactless power transfer (CPT) system from normal conducting coil to HTS coil based on the electromagnet…”
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Experimental Analysis of Charging Characteristics of HTS Field Coils With HTS Contactless Rotary Excitation Device Considering Various HTS Loads by Lee, Jeyull, Jeon, Haeryong, Han, Seunghak, Kim, Ji Hyung, Hyeon, Chang Ju, Kim, Ho Min, Ko, Tae Kuk, Park, Dong Keun, Yoon, Yong Soo

“…In this paper, the charging characteristics of high-Tc superconducting (HTS) field coils are analyzed experimentally to verify the efficiency of using HTS…”
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