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Leakage current reduction is one of the most important issues for transformerless PV grid-connected inverters. Many interesting single-phase topologies have been reported to reduce the leakage currents. However, three-phase PV inverter topologies with reduced leakage currents are not received much attention. In this paper, a new family of three-phase topology is proposed to reduce the leakage current...
Eliminating the leakage current with new converter topologies and modulation strategies is one of the most important issues for transformerless PV systems. A new carrier-based modulation strategy for DCM-232 three-phase PV topology is proposed in this paper. Thanks to the presented method, the common mode voltage of DCM-232 converter can be kept constant, and the leakage current is greatly reduced...
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