Seong-taek Lim
Samsung
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Seong-taek Lim.
IEEE Transactions on Industry Applications | 2013
Sung-Il Kim; Jin-woo Cho; Sung-Hyuk Park; Taesang Park; Seong-taek Lim
Rare-earth magnets have been widely employed for traction drive motors of hybrid and electric vehicles (EVs) due to high energy density. Nevertheless, the magnets have critical problems such as unstable supply and high cost. Recently, in order to solve the problems, a variety of motors not using rare-earth materials have been reviewed, such as an induction motor, a switched reluctance motor, and a spoke-type ferrite magnet motor (FMM). In this paper, a modified spoke-type FMM with a novel rotor configuration was presented for a traction motor of low-speed EVs. The characteristics of the modified spoke-type FMM are numerically compared with a conventional spoke-type FMM at the same design condition. Finally, the modified spoke-type FMM is fabricated and tested in order to verify its performance and feasibility.
IEEE Transactions on Industrial Electronics | 2014
Sung-Il Kim; Sung-Hyuk Park; Taesang Park; Jin-woo Cho; Won-Ho Kim; Seong-taek Lim
In order to exhibit high performance, traction drive motors that use rare-earth magnets have been mainly applied to hybrid and electric vehicles (EVs). However, the raw materials of the magnets have critical issues such as unstable supply and high cost. Thus, a variety of motors not using rare-earth materials have been intensively developed for the traction motor. Nevertheless, it has limitation in increasing the performance of such motors without the use of rare-earth magnets. Accordingly, this paper investigates the availability of a spoke-type ferrite-magnet motor (FMM) with a novel rotor configuration for EV traction motors. In particular, the proposed motor has two rotor designs, and its characteristics based on finite-element analysis are compared according to each rotor design. Furthermore, various mechanical characteristics such as thermal stability, structural safety, and acoustic noise are checked in the design stage of the spoke-type FMM. Finally, the spoke-type FMM is tested in order to verify its performance and feasibility, including vehicle installation and on-road test in LA4 city driving mode.
symposium on vlsi technology | 2006
Suk-pil Kim; Won-joo Kim; Jae-woong Hyun; Sung-jae Byun; Junemp Koo; Jung-Hoon Lee; Kyoung-lae Cho; Seong-taek Lim; Jong-Bong Park; In-kyeong Yoo; Choong-ho Lee; Donggun Park; Yoon-dong Park
A new type of memory, paired FinFET charge trap memory is reported. It consists of two split silicon fins and insulator between them. Two channels are formed on the outer surface of silicon so doubled integration density can be achieved. We successfully fabricated paired FinFET SONOS devices. It shows good program and erase characteristics. Independent programming on each storage nodes is demonstrated. The circuit configuration for NAND flash application is also proposed
european conference on cognitive ergonomics | 2012
Sung-Il Kim; Jin-woo Cho; Sung-Hyuk Park; Taesang Park; Seong-taek Lim
Rare-earth magnets have been widely employed for traction drive motors of hybrid and electric vehicles (EVs) due to high energy density. Nevertheless, the magnets have critical problems such as unstable supply and high cost. Recently, in order to solve the problems, a variety of motors not using rare-earth materials have been reviewed such as an induction motor, a switched reluctance motor, and a spoke-type ferrite magnet motor (FMM). In this paper, a modified spoke-type FMM with a novel rotor configuration is presented for a traction motor of low-speed EVs. The characteristics of the modified spoke-type FMM are numerically compared with a conventional spoke-type FMM at the same design condition. Finally, the modified spoke-type FMM is fabricated and tested in order to verify its performance and feasibility.
Archive | 2010
Sung-Hyuk Park; Seong-taek Lim
Archive | 2001
Sung-hee Lee; Kvu-ho Shin; Seong-taek Lim
Archive | 2005
Seong-taek Lim; Jae-Woo Chung; Jong-beom Kim; Kwang-Ho Lee
Archive | 2011
Seong-taek Lim
Archive | 2011
Seong-taek Lim
Archive | 2011
Sung-Hyuk Park; Seong-taek Lim; Gi-Tae Mun