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조윤제(Y. J. Jo),한미쁨(M. B. Han),조영정(Y. J. Cho),장건희(G. H. Jang) 대한기계학회 2018 대한기계학회 춘추학술대회 Vol.2018 No.12
This research proposes a reduction method of excessive axial vibration in a wall-mounted drum-type washing machine. Finite element (FE) models of a rotor, a stationary part, and a of the wall-mounted drum-type washing machine were developed to investigate the axial vibration characteristics of the wall-mounted drum-type washing machine due to the excitation of an unbalanced mass and motor. The FE model was verified by experiment. Finally, the reduction method of axial vibration was proposed by utilizing ethylene propylene diene monomer (EPDM) rubber, and it was analyzed evaluated by experiment.
장기영(K.Y.Jang),이기선(K.S. Lee),조윤제(Y.J. Cho),조보형(B.H. Cho) 전력전자학회 2000 전력전자학술대회 논문집 Vol.2000 No.11
An balanced tapped inductors using RPPT (Regulated Peak Power Tracking) system is proposed. In the series/parallel PPT system, battery charger and discharger are operating complementary. So they both can be combined into a single hardware block Battery charger and dis-charger share same magnetic cores, thus can be reduced core weights.
병렬 연결 배터리 모듈 시스템을 위한 새로운 충ㆍ방전기
이기선(K.S. Lee),조윤제(Y.J. Cho),장기영(K.Y. Jang),조보형(B.H. Cho) 전력전자학회 2000 전력전자학술대회 논문집 Vol.2000 No.11
A novel integrated battery charger/discharger converter for a standardized battery module is proposed. Instead of using separate charger and discharger converters, it integrates these two converters into a single converter in order to minimize the size. The integrated charger! discharger converter not only regulates the solar array output power including the peak power tracking capability but also controls the battery charging/discharging current depending on the solar array output power and the load power. In addition, It offers a regulated bus voltage which simplifies the power distribution/conversion for the pay load