Analysis of a novel three-phase soft-switched converter with high power factor

Three-phase converters with high power factor achieving sinusoidal input current are studied as novel rectified circuits, especially using the discontinuous current mode (DCM). In this circuit, switching losses increase because of the necessity to turn off the switch at the maximum current. Therefor...

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Bibliographic Details
Published inProceedings of the 1996 IEEE IECON. 22nd International Conference on Industrial Electronics, Control, and Instrumentation Vol. 2; pp. 1088 - 1093 vol.2
Main Authors Morizane, T., Chichikawa, T., Kimura, N., Taniguchi, K., Hirachi, K.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1996
Subjects
Diodes
Inductors
Reactive power
Snubbers
Switches
Switching circuits
Switching converters
Switching loss
Zero current switching
Zero voltage switching
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Summary:Three-phase converters with high power factor achieving sinusoidal input current are studied as novel rectified circuits, especially using the discontinuous current mode (DCM). In this circuit, switching losses increase because of the necessity to turn off the switch at the maximum current. Therefore, the soft-switching method using the lossless snubber is proposed. In this method, ZVS at the turn off can be achieved by lossless snubber and ZCS at the turn-on can be obtained by operating under the DCM. In this paper, the theoretical analysis, numerical analysis using PSpice, and results of the experiments of input current are mentioned.
ISBN:0780327756
9780780327757
DOI:10.1109/IECON.1996.566030