Search Results - "Choi, Kyeongdal"

Persistent Current Mode Operation of A 2G HTS Coil With A Flux Pump by Lee, Seyeon, Kim, Woo-Seok, Kim, Yungil, Lee, Ji-Yung, Park, Sang-Ho, Lee, Ji-Kwang, Hong, Gye-Won, Kim, Sungsoo, Han, Jinho, Hwang, Young Jin, Choi, Kyeongdal

“…A flux pump is a kind of power source that energizes superconducting magnets usually embedded in the cryogenic system. Therefore, heat loss through current…”
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Field Mapping of the Jointless HTS Solenoid Magnet in a Persistent Current Mode Operation by Yoon, Miyeon, Lee, Seyeon, Park, Sang Ho, Lee, Ji-Kwang, Hong, Gye-Won, Choi, Kyeongdal, Hahn, Seungyong, Lee, SangGap, Han, Jun Hee, Kim, Woo-Seok

“…In order to achieve a persistent current mode operation with high-temperature superconducting (HTS) coils, we have been trying to improve the concept of a…”
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Persistent Current Mode of a 1-T-Class HTS Pancake Coil for NMR/MRI Applications by Kim, Woo-Seok, Lee, Seyeon, Kim, Yungil, Lee, Ji Young, Park, Sang-Ho, Lee, Ji-Kwang, Hong, Gye-Won, Han, Jinho, Choi, Kyeongdal

“…We had proposed a winding method, the so-called "wind-and-flip," which enables a persistent current-mode operation of a high-temperature superconducting (HTS)…”
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The performance of the conduction cooled 2G HTS magnet wound without turn to turn insulation generating 4.1 T in 102 mm bore by SANGWON YOON, KYEKUN CHEON, HUNJU LEE, MOON, Seung-Hyun, KIM, Sun-Young, YUNGIL KIM, PARK, Sang-Ho, KYEONGDAL CHOI, HONG, Gye-Won

“…A large bore magnet coil wound without turn to turn insulation was fabricated and cooled down to 10 K by conduction cooling. The coil has room temperature bore…”
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Fabrication and Characterization of 4-T/203 mm RT Bore 2G HTS Magnet With No-Insulation Method by Yoon, Sangwon, Cheon, Kyekun, Lee, Hunju, Moon, Seung-Hyun, Kim, Sun-Young, Kim, Yungil, Park, Sang-Ho, Choi, Kyeongdal, Hong, Gye-Won

“…We fabricated superconducting magnet using second-generation (2G) high-temperature superconducting wire by SuNAM. Magnetic field strength at the center is 4 T,…”
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Characteristics of an HTS Pancake Coil in Persistent Current Mode Using Wind-and-Flip Winding Method by SEYEON LEE, KIM, Woo-Seok, YUNGIL KIM, SANG HO PARK, LEE, Ji-Kwang, HAHN, Jin-Ho, HONG, Gye-Won, IL HAN PARK, CHAN PARK, KYEONGDAL CHOI

“…It has been well known that a coated conductor (CC), 2G superconducting tape, shows a higher critical current and better performance than the 1G, BSCCO one…”
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Characteristics of Rotating Armature Type High Temperature Superconducting Generators With Dual Field Windings for the Wind Turbine by Park, Sang Ho, Kim, Yungil, Lee, Seyeon, Kim, Woo-Seok, Lee, Ji Young, Lee, Ji-Kwang, Choi, Kyeongdal

“…We proposed an HTS wind power generator that has armature windings in the rotor. Field windings in the stator make a slightly higher magnetic field than the…”
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Design of HTS Toroidal Magnets for a 5 MJ SMES by LEE, Seyeon, YI, Kyung-Pyo, HAHN, Songyop, SANG HO PARK, LEE, Ji-Kwang, KIM, Woo-Seok, PARK, Chan, BAE, Joon-Han, SEONG, Ki-Chul, PARK, Ilhan, CHOI, Kyeongdal

“…A 2.5 MJ Superconducting Magnetic Energy Storage System (SMES) is being developed as a national R&D project in Korea. It is in 2nd phase of total 3 phases…”
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Fabrication and Characterization of 3-T/102-mm RT Bore Magnet Using 2nd Generation (2G) HTS Wire With Conducting Cooling Method by Yoon, Sangwon, Cheon, Kyekun, Lee, Hunju, Moon, Seung-hyun, Ham, Ilkyu, Kim, Yungil, Park, Sang-ho, Joo, Hyeonggil, Choi, Kyeongdal, Hong, Gye-Won

“…A conduction-cooled high-temperature superconducting magnet using 2nd generation HTS wire, which has a room-temperature bore 102 mm in diameter, has been…”
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Electrical Properties Analysis and Test Result of Windings for a Fully Superconducting 10 HP Homopolar Motor by Lee, Ji-Kwang, Park, Sang Ho, Kim, Yungil, Lee, Seyeon, Kim, Woo-Seok, Choi, Kyeongdal, Hahn, Song-Yop

“…This paper describes the electrical analysis and performance test result of windings of a 10 HP homopolar fully superconducting synchronous motor. The…”
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AC Loss Analysis of Striated HTS Compact Cables for Low Loss Cable Design by LEE, Ji-Kwang, YUNGIL KIM, SEYEON LEE, KIM, Woo-Seok, PARK, Sang-Ho, CHAN PARK, KYEONGDAL CHOI

“…Although the shape of high-temperature superconducting (HTS) tape is not good for cables, many researches are being progressed like Roebel conductors, compact…”
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The performance of the conduction cooled 2G HTS magnet wound without turn to turn insulation generating 4.1T in 102mm bore by Yoon, Sangwon, Cheon, Kyekun, Lee, Hunju, Moon, Seung-Hyun, Kim, Sun-Young, Kim, Yungil, Park, Sang-Ho, Choi, Kyeongdal, Hong, Gye-Won

“…•Conduction cooled 2G HTS magnet with 102mm RT bore was designed and assembled•22 double pancakes wound with no-insulation winding method.•Assembled coil…”
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Stress Analysis for Toroid-Type HTS SMES Coil and Bobbin Structure Considering Large Parallel Magnetic Field by KIM, Kwangmin, LEE, Sangjin, KIM, Seokho, PARK, Minwon, YU, In-Keun, LEE, Ji-Kwang, LEE, Se-Yeon, CHOI, Kyeongdal, SEONG, Ki-Cheol, YEOM, Hankil

“…A 2.5 MJ HTS superconducting magnetic energy storage (SMES) system is under development to compensate the sag or instantaneous black out for a utility side…”
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Analysis of Eddy Current Losses and Magnetization Losses in Toroidal Magnets for a 2.5 MJ HTS SMES by LEE, Seyeon, PARK, Sang-Ho, HAHN, Songyop, KIM, Woo-Seok, LEE, Ji-Kwang, LEE, Sangjin, PARK, Chan, BAE, Joon-Han, KIM, Seok-Ho, SEONG, Ki-Chul, CHOI, Kyeongdal

“…A SMES magnet can be operating in three different modes: charging, storing, and discharging. The eddy current losses and magnetization losses are generated…”
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Design of HTS Magnets for a 2.5 MJ SMES by KWAK, Sangyeop, LEE, Seyeon, SEONG, Kichul, JUNG, Hyunkyo, HAHN, Song-Yop, LEE, Sangyeop, KIM, Woo-Seok, LEE, Ji-Kwang, PARK, Chan, BAE, Joonhan, SONG, Jung-Bin, LEE, Haigun, CHOI, Kyeongdal

“…A 600 kJ HTS SMES system has been developed for power system stabilization as a national project in Korea. Successful operating tests of the 600 kJ were…”
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Estimation of the Critical Current Density From the Measured Values of Perpendicular Magnetization Losses in HTS Coated Conductors by LEE, Ji-Kwang, KIM, Yungil, LEE, Seyeon, KIM, Woo-Seok, PARK, Chan, CHOI, Kyeongdal

“…Stacking of conductors for large current capacity and striation for low loss are needed in large scale power applications of HTS superconductor. It, however,…”
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Design of HTS Modular Magnets for a 2.5 MJ Toroidal SMES: ReBCO vs. BSCCO by LEE, Seyeon, KIM, Woo-Seok, HAHN, Songyop, PARK, Sang-Ho, LEE, Ji-Kwang, PARK, Chan, BAE, Joon-Han, SEONG, Ki-Chul, LEE, Haigun, LEE, Jong-Hoon, CHOI, Kyeongdal

“…A 2.5 MJ HTS SMES is being developed as a national program in Korea. This paper presents design results of modular HTS magnets for the 2.5 MJ toroidal SMES. We…”
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Non-Contact Measurement of Current Distribution in Parallel Conductors by Using Hall Sensors by PARK, Myungjin, BYUN, Sangbeom, KIM, Wooseok, LEE, Jikwang, CHOI, Kyeongdal, LEE, Haigun

“…A parallel HTS conductor to flow large current is essential for applications of HTS power device. Non-uniform current distribution in the parallel conductor is…”
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Magnetic Field Stability of a Small YBCO Magnet in Persistent Current Mode by KIM, Woo-Seok, PARK, Chan, SANG HO PARK, LEE, Jikwang, SONG, Jung-Bin, LEE, Haigun, LEE, Hee-Gyoun, HONG, Gye-Won, CHOI, Kyeongdal

“…It is well known that HTS (high temperature superconductor) is promising for magnet applications, but it has been almost impossible so far to apply them to…”
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Reduction Effect on Magnetization Loss in the Stacked Conductor With Striated and Transposed YBCC Coated Conductor by LEE, Ji-Kwang, BYUN, Sangbeom, HAN, Byoung-Wook, KIM, Woo-Seok, PARK, Sangho, CHOI, Sukjin, PARK, Chan, CHOI, Kyeongdal

“…Recently, it is proposed to make striations on the YBCO coated conductor and to transpose each other as one of the solutions to decrease the perpendicular…”
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