Impedance source inverter (ZSI) is a new approach to DC/AC conversion technology. It was published by Peng in 2003 [1,2,3]. The ZSI circuit diagram shown in Figure 5.1 consists of an x-shaped impedance network formed by two capacitors and two inductors, and it provides unique buck–boost characteristics. Moreover, unlike VSI, the need for dead time would not arise with this topology. Due to these attractive features, it has found numerous industrial applications including variable speed drives and distributed generation (DG). However, it has not been widely researched as a DG topology. Moreover, all these industrial applications require proper closed loop controlling to adjust their operating conditions subject ...
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