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Analysis and design of optimum-amplitude nine-switch direct AC-AC converters

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2 Author(s)
A. Alesina ; Dept. of Math., Milan Univ., Italy ; M. G. B. Venturini

The maximum input-output transformer ratio, or output voltage ability, of direct AC-AC pulse-width-modulated converters is explored. An intrinsic limit, independent of the control algorithm, is found. A suitable novel converter control algorithm is discussed which achieves such maximum output amplitude ability and displays some interesting features. Finally, the opportunity to implement AC-AC converter control with the use of feedback techniques is considered, and a feedback-based control algorithm for the converter is proposed

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IEEE Transactions on Power Electronics  (Volume:4 ,  Issue: 1 )