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Since its conception, the quasi-Z-source inverter (qZSI) has been extensively studied, especially in renewable energy applications fields due to its ability to withstand shoot-through and provide continuous current. However, research thus far has only explored symmetric qZSI/ZSI impedance network with large inductances and capacitances. By utilizing next-gen wideband-gap devices at high-switching...
In this paper ground leakage current suppression in a 50 kW 5-level T-type transformerless PV inverter has been presented. Compared to a 3-level T-type PV inverter, this topology allows a simple modulation method such as carrier-based (CB) PWM can be used to suppress the leakage current without the penalty of the traditional methods. Phase disposition (PD) and phase opposition disposition (POD) based...
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