A New High-Efficiency Single-Phase Transformerless PV Inverter Topology

作者:Kerekes Tamas*; Teodorescu Remus; Rodriguez Pedro; Vazquez Gerardo; Aldabas Emiliano
来源:IEEE Transactions on Industrial Electronics, 2011, 58(1): 184-191.
DOI:10.1109/TIE.2009.2024092

摘要

There is a strong trend in the photovoltaic inverter technology to use transformerless topologies in order to acquire higher efficiencies combining with very low ground leakage current. In this paper, a new topology, based on the H-bridge with a new ac bypass circuit consisting of a diode rectifier and a switch with clamping to the dc midpoint, is proposed. The topology is simulated and experimentally validated, and a comparison with other existing topologies is performed. High conversion efficiency and low leakage current are demonstrated.

  • 出版日期2011-1