In order to solve the problem of the leakage current in non-isolated photovoltaic systems

a novel six-switch topology and control strategy is proposed. The inductor-bypass strategy has solved the common mode voltage limitation of the conventional six-switch topology in the case of unmatched inductance. And the stray capacitor voltage of the non-isolated photovoltaic system is free from high frequency ripples. Theoretical analysis and simulation are carried out to verify the proposed topology and its control strategy. Results show that leakage current suppression can be achieved with the proposed solution.