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6고조파 주입 PWM을 이용한 3상 승압형 컨버터 고조파저감
이정훈(J. H. Lee),김재문(J. M. Kim),안정준(J. J. Ahn),이정호(J. H. Lee),원충연(C. Y. Won),정동효(D. H. Jung) 전력전자학회 1999 전력전자학술대회 논문집 Vol.1999 No.7
In this paper, six harmonic injection PWM method for reducing total harmonic distortion in single switch three phase discontinuous conduction mode boost converter is presented In the proposed method, periodic six harmonic voltage is injected m the control circuit to vary the duty ratio of the converter switch within a line cycle so that the fifth order harmonic of the input current is reduced. Experimental results are verified by converter operating at 400V/6kW with three phase 140V-220V input.
3상 AC/DC 스위치 모드 승압형 컨버터를 이용한 CO₂아크 용접기 역률개선에 관한 연구
이정훈(J.H.LEE),김재문(J.M.KIM),안정준(J.J.AHN),이상석(S.S.LEE),원충연(C.Y.WON),김세찬(S.C.KIM) 전력전자학회 1998 전력전자학술대회 논문집 Vol.- No.-
In this paper A switch mode AC/DC three phase boost converter with high power factor and sinusoidal input current waveform is analyzed and simulated. The proposed converter retain high power factor and sinusoidal input current waveform even under electric arc welder load. It is shown that experimental result and simulation waveform yield a sinusoidal input current waveform ant high power factor.<br/> <br/>