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Switching Power Converters, 2nd Edition by Dorin O. Neacsu

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16

AC/AC Matrix Converters as a 9-Switch Topology

16.1    BACKGROUND

The three-phase AC/AC matrix converters have attracted lots of interest in the 1990s [1,2,3,4,5,6,7]. Methods for both the realization of bidirectional switch and the PWM control have been investigated and most of the initial limitations of the matrix converter are nowadays overcome. This continuous effort has been rewarded with system-level products like Yaskawa Matrix Converter or power modules from manufacturers like Infineon, Semelab, Dynex or IXYS.

The Yaskawa’s AC7 Matrix Converter [8] represents the world’s first low voltage (230 V/460 V) matrix converter to directly convert input AC voltage to output AC voltage without the need for a DC Bus. Using this configuration ...

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