Review of transformerless inverter topologies

Alzoubi, Muh'd, Amanullah, Maung Than Oo and Azad, Salahuddin 2013, Review of transformerless inverter topologies, in Asia PES 2013 : Proceedings of the IASTED Power and Energy Systems 2013 international conference, ACTA Press, Calgary, Canada, pp. 197-203, doi: 10.2316/P.2013.800-052.

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Title Review of transformerless inverter topologies
Author(s) Alzoubi, Muh'd
Amanullah, Maung Than OoORCID iD for Amanullah, Maung Than Oo
Azad, Salahuddin
Conference name Power and Energy Systems. International Conference (6th : 2013 : Phuket, Thailand)
Conference location Phuket, Thailand
Conference dates 10 - 12 Apr. 2013
Title of proceedings Asia PES 2013 : Proceedings of the IASTED Power and Energy Systems 2013 international conference
Editor(s) Kaitwanidvilai, S.
Publication date 2013
Conference series Power and Energy Systems International Conference
Start page 197
End page 203
Total pages 7
Publisher ACTA Press
Place of publication Calgary, Canada
Keyword(s) transformerless topologies
leakage current
modulation scheme
Summary In the recent years, there has been a widespread trend in the use of the transformerless inverters in the single-phase grid-connected photovoltaic systems. This has been motivated by the low price, minor size, light mass, and great efficiency associated with them. However, when no transformer is used, common-mode voltage appears and leads to ground leakage current through the Photovoltaic parasitic capacitance to the ground due to the non-galvanic isolation configuration. This has lead to a main research focus on ways of minimizing or eliminating these leakage currents without influencing the efficiency of the system. Different topologies have been suggested to eliminate the leakage current in the transformerless grid-connected photovoltaic (PV) systems. In this paper, a review of these transformerless topologies is carried out, in regard to the leakage current for single phase. The benefits, in regard to each scheme, are outlined and their disadvantages explained.
ISBN 0889869596
Language eng
DOI 10.2316/P.2013.800-052
Field of Research 090607 Power and Energy Systems Engineering (excl Renewable Power)
Socio Economic Objective 850603 Energy Systems Analysis
HERDC Research category E1.1 Full written paper - refereed
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