Novel power conditioning system for residential fuel cell power plants

Author

Jalakas, Tanel ; Roasto, Indrek ; Vinnikov, Dmitri ; Agabus, Hannes

Author_Institution

Dept. of Electr. Drives & Power Electron., Tallinn Univ. of Technol., Tallinn, Estonia

fYear

2012

fDate

25-28 June 2012

Firstpage

578

Lastpage

585

Abstract

This paper describes a novel power conditioning system for residential fuel cell power plants, consisting of a step-up DC/DC converter and a single or a multiphase inverter. To increase the efficiency of the whole system a quasi Z-source inverter along with a step-up isolation transformer and a voltage doubler rectifier can be used. Due the continuous input current and low current ripple, the service life of a fuel cell is significantly increased. Further reduction in the output current ripple of a fuel cell is achieved by implementing an interleaved converter design with shifted switching and active ripple cancellation. Interleaved converter design also enables variations in the operating cell count to increase the overall efficiency of a power conditioning system.

Keywords

DC-DC power convertors; fuel cell power plants; invertors; rectifiers; active ripple cancellation; current ripple; interleaved converter design; multiphase inverter; power conditioning system; quasi Z-source inverter; residential fuel cell power plants; step-up DC-DC converter; step-up isolation transformer; voltage doubler rectifier; Batteries; DC-DC power converters; Fuel cells; Inverters; Power generation; Pulse width modulation; Transistors; Fuel cell power conditioning system; interleaved converter; qZSI converter;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics for Distributed Generation Systems (PEDG), 2012 3rd IEEE International Symposium on

Conference_Location

Aalborg

Print_ISBN

978-1-4673-2021-4

Electronic_ISBN

978-1-4673-2022-1

Type

conf

DOI

10.1109/PEDG.2012.6254060

Filename

6254060