A soft-switched, flying inductor DC-DC converter suitable for photovoltaic panels

Author

Pecelj, I. ; de Haan, S.W.H. ; Ferreira, J.A.

Author_Institution

Electr. Sustainable Energy Dept., Delft Univ. of Technol., Delft, Netherlands

Volume

2

fYear

2012

fDate

2-5 June 2012

Firstpage

1241

Lastpage

1246

Abstract

The paper presents a soft-switched, flying inductor DC/DC converter. The topology allows different ground levels of the input and the output side of a converter which can be beneficial for photovoltaic (PV) installations because it enables grounding of the DC side of PV panels. This reduces common mode current thorough the parasitic capacitances of the PV panels, which is the major issue of PV installations. A resonant capacitor placed in parallel with the link inductor acts as a lossless snubber reducing switching losses of the converter. In addition, the switches are turned on with zero voltage and zero current. Simulation and experimental results are provided.

Keywords

DC-DC power convertors; photovoltaic power systems; solar cells; switching convertors; PV installations; flying inductor DC-DC converter; photovoltaic installations; photovoltaic panels; resonant capacitor; soft-switched DC-DC converter; switching loss reduction; Capacitors; Current measurement; Grounding; Impedance; Inductors; Inverters; Topology; DC/DC covnerter; buck-boost; flying inductor; soft-switcing;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference (IPEMC), 2012 7th International

Conference_Location

Harbin

Print_ISBN

978-1-4577-2085-7

Type

conf

DOI

10.1109/IPEMC.2012.6259018

Filename

6259018