Auteur Seok, Jul-Ki
Documents disponibles écrits par cet auteur (4)
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Seok, Jul-Ki, Auteur ; Kim, Kyung-Tae, Auteur ; Dong-Choon Lee, Auteur |Conventional proportional/proportional-integral (P/PI) speed controller for today's servo drives has to be manually tuned at the controller switching set point by trial and error, which may translate into drive system downtime and a subsequent l[...]
Article : texte imprimé
Seok, Jul-Ki, Auteur |This paper presents a frequency-spectrum-based conditional-integration antiwindup strategy for a general proportional-integral-type controller. The on/off condition of integral action is determined by a frequency-domain analysis of the actuator-[...]
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Choi, Chan-Hee, Auteur ; Cho, Kyung-Rae, Auteur ; Seok, Jul-Ki, Auteur |This paper proposes a compensation strategy for the unwanted disturbance voltage due to inverter nonlinearity. We employ an emerging learning technique called support vector regression (SVR). SVR constructs a motor dynamic voltage model by a lin[...]
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Hwang, Tai-Sik, Auteur ; Seok, Jul-Ki, Auteur |This paper describes our research on a force ripple compensation and closed-loop position control scheme using linear hybrid stepping motors (LHSMs) with significant thrust vibrations. In order to estimate unobservable force ripple components, w[...]
