Comparisons of two kinds of AC/AC converters with high frequency link

Novel AC/AC converters with high frequency ac link are composed of two kinds of AC/AC converters, which are voltage mode based on Forward converter and current mode based on Flyback converter. The circuit configuration and topology, control strategy, principle characteristics, design criteria of the key circuit parameters, and principle prototype of two-kinds converters are deeply and comparatively investigated firstly in this paper, and important conclusions are obtained. Compared with the voltage mode converters, the current mode converters have the characteristics such as more concise circuit topologies, wider range of the input voltage, higher quality of the output waveforms, higher reliability, lower cost, lower conversion efficiency and more applicability to the small power conversion fields. Research on the comparisons of two kinds of converters supplies the key technical foundation on new type electronic transformers, regulated sinusoidal ac power supplies, and ac regulators.

[1]  J.B. Vieira,et al.  A proposed of an AC/AC serial regulator using a capacitor as the serial component , 2000, APEC 2000. Fifteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.00CH37058).

[2]  Koosuke Harada,et al.  Intelligent transformer , 1996, PESC Record. 27th Annual IEEE Power Electronics Specialists Conference.

[3]  Lee Empringham,et al.  A new resonant soft switching topology for direct AC-AC converters , 2002, 2002 IEEE 33rd Annual IEEE Power Electronics Specialists Conference. Proceedings (Cat. No.02CH37289).

[4]  Lei Li,et al.  Phase-shifted controlled forward mode AC/AC converters with high frequency AC links , 2003, The Fifth International Conference on Power Electronics and Drive Systems, 2003. PEDS 2003..

[5]  Daolian Chen.  Novel Current-Mode AC/AC Converters With High-Frequency AC Link , 2008, IEEE Transactions on Industrial Electronics.

[6]  V. J. Farias,et al.  Three AC/AC single phase voltage regulators analysed in a comparative way , 2001, APEC 2001. Sixteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.01CH37181).

[7]  Koosuke Harada,et al.  Intelligent T ransformer , 1996 .

[8]  V.J. Farias,et al.  A serial regulator using a soft switching PWM AC/AC full bridge-converter , 1999, 30th Annual IEEE Power Electronics Specialists Conference. Record. (Cat. No.99CH36321).

[9]  S. Munk-Nielsen,et al.  A novel loss reduced modulation strategy for matrix converters , 2001, 2001 IEEE 32nd Annual Power Electronics Specialists Conference (IEEE Cat. No.01CH37230).