Hybrid transformerless PV converters with low leakage currents: Analysis and configuration

This paper proposes a hybrid transformerless photovoltaic (PV) converter with simultaneous AC and DC outputs. It is specifically suitable for residential PV systems due to its high efficiency, versatility flexibility, while maintaining lower leakage currents. The proposed configured by replacing the control switch of boost voltage-source inverter (VSI), enabling multiple In addition, symmetrical inductor adopted clamp common-mode voltage as constant, resulting in low To illustrate configuration principle, highly efficient reliable concept (HERIC) VSI exemplified. Besides, dedicated modulation scheme detailed achieve currents, reactive power injection efficiency. Furthermore, shoot-through state legs allowable converter, i.e. no need add dead time, reliability quality can be improved. Simulations experimental tests are performed on an example (with HERIC VSI) validate analysis.