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전중함(J. H. Chun),이현우(H. W. Lee),백수현(S. H. Baek),곽동걸(D. K. Kwak) 한국조명·전기설비학회 2005 한국조명·전기설비학회 학술대회논문집 Vol.2005 No.5월
In this paper discusses single-phase DC-AC Inverter design of reversible power converter that driven by binary combination at different transformer winding ratio by BCD code level. It has a advantage that constructs a control system simply and obtain load current of good quality without filter circuit and free from noise or isolation for lower switching frequency. In this research, study on current type converter and inverter circuit that consist for possibility of AC-DC/DC-AC multi-level reversible converter.
전중함(J. H. Chun),이현우(H. W. Lee) 전력전자학회 2006 전력전자학술대회 논문집 Vol.- No.-
In this paper discusses winding methode of single phase AC-DC reversible power converter The reversible power converter driven by multi Tap winding at both side switching control. It has a advantage that simple drive of main switching device. and obtain load current of good quality without filter circuit and free from noise or isolation for lower switching frequency. In this research, study on current type converter and inverter circuit that consist for possibility of AC-DC/DC-AC multi-level reversible converter.
라병훈(B.H.Ra),권순걸(S.K.Kwon),이현우(H.W.Lee),전중함(J.H.Chun),김광태(K.T.Kim) 전력전자학회 2003 전력전자학술대회 논문집 Vol.2003 No.11
Conventional vector control inverter is usually used for blower of air-accord equipment. In this paper, it is proposed that inverter is controlled by instantaneous following PWM controller. This controller compensate and follow for output voltage of inverter within one switching cycle as an error that compared output voltage of rectifier included much ripples with reference voltage of sine wave. It has not speedy response like vector controller, but the circuit is very simple as using analog integer. And it has advantages that develop input power factor, built<br/> small-capacity and low-cost because huge capacitor of voltage type inverter removed.