Leakage Current Mitigation in Current-Source Inverter based Transformerless Photovoltaic System using Active Zero-State Space Vector Modulation

Suitable space vector modulation (SVM) schemes for current-source inverters (CSIs) with leakage current mitigation capability has not been well explored yet. In this study, a novel SVM scheme is proposed, with which the leakage current in a CSI-based transformerless photovoltaic system can be significantly suppressed. Finally, some simulations are carried out on a three-phase current-source converter (CSC), the results verify the effectiveness of the proposed SVM scheme.