Abstract
The original Y-source inverter applies a three-winding coupled inductor to obtain a high voltage gain. However, the leakage inductances of the coupled inductors have also been introduced to the circuit, which can cause great voltage spikes at dc-link and reduce the efficiency. This paper proposed a modified Y-source inverter to overcome the issues brought by the leakage inductances. It inherits all the advantages of the Y-source inverter. In addition, the proposed topology has the ability to provide a higher boost ratio and continuous input current, thus enlarging its application area. The great features of the proposed inverter have been proven through the experiments in this paper.
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