Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Hyung-Min Ryu"'
Publikováno v:
The Korean Society of Manufacturing Process Engineers. 18:83-88
Autor:
Hyung-Min Ryu
Publikováno v:
The Transactions of the Korean Institute of Power Electronics. 19:227-232
A highly efficient MOSFET inverter for single-phase grid-connected photovoltaic power generation systems is presented in this paper. It is a full-MOSFET version of the conventional transformerless full-bridge inverter with dual L-C filters using unip
Autor:
Hyung-Min Ryu
Publikováno v:
Journal of Power Electronics. 14:265-270
In terms of power loss, a MOSFET has two advantages over an IGBT with an antiparallel diode: purely resistive without an offset voltage in conduction and no tail current at turn-off. However, the reverse recovery characteristic of the body diode is s
Publikováno v:
Korean Journal of Food Preservation. 20:372-378
The objective of this study was to evaluate the quality characteristics of mungbean starch gels that were prepared with different concentrations (0, 0.5, 1.0 and 1.5%) of peach seed powders (PSP), which exhibit antioxidant characteristics. Mungbean s
Autor:
Hyung-Min Ryu
Publikováno v:
Journal of Power Electronics. 11:188-193
A highly efficient AC-DC converter for small wind power generation systems using a brushless DC generator (BLDCG) is presented in this paper. The market standard AC-DC converter for a BLDCG consists of a three-phase diode rectifier and a boost DC-DC
Publikováno v:
IEEE Transactions on Industry Applications. 42:1062-1070
In this paper, the synchronous frame current controller of a multi-phase synchronous motor with open phases is proposed. The proposed method can not only possess the superiority of a linear controller over the conventional hysteresis-type current con
Publikováno v:
IEEE Transactions on Power Electronics. 20:1364-1371
Multiphase motors are usually designed to have the concentrated winding and nonsinusoidal airgap flux density distribution in order to maximize the torque per ampere. This means that the phase voltage of a multiphase motor has the nonsinusoidal wavef
Autor:
Hyung-Min Ryu, Seung-Ki Sul, Lo-Won Kang, Junho Song, Young-Min Lee, Jong-Ho Suh, Dae-Woong Chung, Joong-Seok Yoon, Seok-Joo Kang, Kil-Haeng Lee
Publikováno v:
IEEE Industry Applications Magazine. 7:52-56
The authors present a new standardized type of gearless traction machine drive system with a PM motor for high-speed elevators. Some control functions which are indispensable for improving the performance of elevator systems have been addressed. Stri
Autor:
Hyung-Min Ryu
Publikováno v:
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers. 30:46
Publikováno v:
Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting..
In this paper, the synchronous frame current control of a multi-phase synchronous motor based on multiple d-q spaces concept is proposed. The proposed method can not only possess the superiority of a linear controller over the conventional hysteresis