Dong-Seok Hyun
Hanyang University
300 Papers
3K Citations
Dong-Seok Hyun is an academic researcher from Hanyang University. The author has contributed to research in topics: Inverter & Pulse-width modulation. The author has an hindex of 43, co-authored 300 publications. Previous affiliations of Dong-Seok Hyun include Hongik University.
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Papers
Open Circuit Fault Diagnosis Using Stator Resistance Variation for Permanent Magnet Synchronous Motor Drives
TL;DR: In this paper, the stator resistance of PMSMs can be estimated by recursive least square (RLS) algorithm in real time, and the proposed fault diagnosis scheme is implemented without any extra devices.
•Journal Article
A Simple Control Strategy for Balancing the DC-link Voltage of Neutral-Point-Clamped Inverter at Low Modulation Index
TL;DR: In this article, a simple control strategy based on discontinuous PWM (DPWM) was proposed to balance the DC-link voltage of three-level neutral-point-clamped (NPC) inverter at low modulation index.
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A study for improved of speed response characteristic in four-switch three-phase BLDC motor
Joon-Ho Lee,Tae-Sung Kim,Dong-Seok Hyun +2 more
- 02 Nov 2004
TL;DR: In this paper, a new speed control method using the acceleration feedforward compensation and using the disturbance torque estimate method was proposed to improve transition response characteristic of system and has been a robust characteristic in the four-switch three-phase motor drive system in which the gain of speed controller cannot be made large enough.
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Magnetic-Field Analysis on Winding Disposition of Transformer for Distributed High-Speed Train Applications
TL;DR: A magnetic-field analysis on a winding disposition is presented to clarify an impact on magnetic decoupling between secondary windings, under a limited height of a train.
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Synchronization on the points of turn-off time of series-connected power semiconductor devices using Miller effect
Beom-Seok Seo,Toeck-Kie Lee,Dong-Seok Hyun +2 more
- 09 Nov 1992
TL;DR: In this paper, a series connection of power transistors has been proposed, simulated, and studied experimentally to improve the reliability and efficiency of high-voltage power converters using series-connected transistors.
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