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New bilateral zero voltage switching AC/AC converter using high frequency partial-resonant link

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2 Author(s)
I. -D. Kim ; Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea ; G. -H. Cho

A zero-voltage switching partial-resonant link AC/AC converter which overcomes the shortcomings of conventional resonant AC and DC link schemes and consists of only 12 unidirectional switches is proposed. The converter synthesizes output AC waveforms with integrals of high-frequency current pulses like series-resonant converters, but switching operations occur at zero-voltage instants instead of at zero-current instants. The partial-resonant link normally does not resonate during the entire operation interval but does so only for the duration of switching transients. The converter can easily and exactly control individual current-pulse amplitudes in each switching cycle. Symmetrical configuration of the power scheme provides fully regenerative operation with buck-boost capability. The advantages of the scheme are shown through analyses and simulation results

Published in:

Industrial Electronics Society, 1990. IECON '90., 16th Annual Conference of IEEE

Date of Conference:

27-30 Nov 1990