Title :
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
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;
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
DOI :
10.1109/SPEEDAM.2010.5542235
