Efficiency and reliability comparison of DC-DC converters for single phase grid connected photovoltaic inverters

Author

Graditi, Giorgio ; Colonnese, Diego ; Femia, Nicola

Author_Institution

ENEA Res. Center, Portici, Italy

fYear

2010

fDate

14-16 June 2010

Firstpage

140

Lastpage

147

Abstract

The three basic nonisolated DC-DC converter topologies are here compared in a single phase grid tied photovoltaic application, from an efficiency and reliability perspective. A general design procedure which attempts to maximize the switching frequency has been established and followed for all the topologies. A MATLAB^® model representing the sources of losses has been developed to evaluate the efficiency, while MIL-HDBK-217F has served as guide to reliability estimation. Graphical and numerical representations of the main results are given, together with a simple figure of merit that synthetically summarize them.

Keywords

DC-DC power convertors; invertors; photovoltaic power systems; power generation reliability; power grids; MATLAB model; MIL-HDBK-217F; nonisolated DC-DC converter topology reliability; reliability estimation; single phase grid connected photovoltaic inverters; switching frequency; Costs; DC-DC power converters; Diodes; Inverters; Magnetic switching; Photovoltaic systems; Production; Solar power generation; Switches; Voltage; DC-DC Converter; MPPT; Photovoltaic Inverter; Reliability;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Electrical Drives Automation and Motion (SPEEDAM), 2010 International Symposium on

Conference_Location

Pisa

Print_ISBN

978-1-4244-4986-6

Electronic_ISBN

978-1-4244-7919-1

Type

conf

DOI

10.1109/SPEEDAM.2010.5542235

Filename

5542235