Efficiency Analysis of Single-Phase Photovoltaic Transformer-less Inverters

Authors

  • M. Martino Department of Energy Technology at Aalborg University Pontoppidanstræde 101 · 9220 Aalborg Author
  • C. Citro Electrical Department at University Politechnique of Catalunya Author
  • K.Rouzbehi Electrical Department at University Politechnique of Catalunya Author
  • P. Rodriguez Electrical Department at University Politechnique of Catalunya Author

DOI:

https://doi.org/10.24084/repqj10.765

Keywords:

Transformer-less PV inverter, IGBTs, Silicon diodes, Silicon Carbide Diodes, European Efficiency

Abstract

This paper presents an efficiency analysis of five single-phase transformer-less inverters for photovoltaic applications (Full H-Bridge, Half H-Bridge, H5, HERIC and NPC inverters) implemented with different topologies of switches. Silicon (Si) and Silicon Carbide (SiC) diodes have been considered combined with two kinds of IGBTs. Simulation results have been obtained for each of the systems in different operating conditions by using PLECS software. Power losses and European Efficiency (EE) have been calculated for all the topologies by including the real characteristics of the switches in the thermal models provided by the software

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Published

2024-01-19

Issue

Vol. 10 No. 12 (2012)

Section

Articles