Abstract

As the oldest impedance source inverters, Z-source inverter is one of the typical topologies, whose analytical and control methods can be transplanted to other impedance source inverters. Besides, since the impedance source inverters are improved from traditional voltage source and current source inverters by inserting an impedance network, they can be classified into voltage-fed and current-fed impedance source inverters. This chapter presents the structure and analysis of voltage-fed Z-source inverter as well as its modulation methods and closed-loop control of shoot-through duty circle. At last but not the least, the introduction of current-fed Z-source inverter is mentioned, which is different from voltage-fed Z-source inverters.

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