Losses and CMV Evaluation in Transformerless Grid-connected PV Topologies
Location: KOREA
Publication date: 2009-07-05
Published in: IEEE International Symposium on Industrial Electronics 2009, Seoul (South Korea) - ISIE 2009
ref. DOI: 10.1109/ISIE.2009.5213296

Local members

Alvaro Luna

PhD. Senior Researcher.

External members

Vazquez, G. , Kerekes, T. , Rolan, A. , Aguilar, D. , Azevedo, G.



Controlling the thermal losses in the semiconductors as well as the Common Mode Voltage (CMV), are important issues in the design of power electronics converters for photovoltaic applications. At present time there are several topologies that offer a good performance regarding losses and CMV. In this paper an evaluation of three of these converters topologies: H5, HERIC and NPC transformerless for single phase PV systems will be carried out by means of simulations performed with PSIM 7.05. This software permits to estimate accurately the switching and conduction losses, thanks to its Thermal Module. This analysis together with theCMV study for each case will permit to establish the pros and cons of each topology.


Associated projects

National public