Transformerless photovoltaic inverters with leakage current and pulsating power elimination

  title={Transformerless photovoltaic inverters with leakage current and pulsating power elimination},
  author={Ying Wei Tang and Wenli Yao and Hang Wang and Poh Chiang Loh and Frede Blaabjerg},
  journal={2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)},
This paper presents a transformerless inverter topology, which is capable of simultaneously solving leakage current and pulsating power issues in grid-connected photovoltaic (PV) systems. Without adding any additional components to the system, the leakage current caused by the PV-to-ground parasitic capacitance can be bypassed by introducing a common mode (CM) conducting path to the inverter. The resulting ground leakage current is therefore well controlled to be below the regulation limit… CONTINUE READING


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