Flatness based control of an isolated three-port bidirectional DC-DC converter for a fuel cell hybrid source

Author

Phattanasak, Matheepot ; Gavagsaz-Ghoachani, Roghayeh ; Martin, Jean-Philippe ; Pierfederici, Serge ; Davat, Bernard

Author_Institution

Groupe de Rech. en Electron. et en Electrotech. de Nancy (GREEN), Nancy-Univ., Vandoeuvre-lès-Nancy, France

fYear

2011

fDate

17-22 Sept. 2011

Firstpage

977

Lastpage

984

Abstract

A flatness based controller for a hybrid source system, which is a fuel cell (FC) and supercapacitor (SC), is presented. The FC is used as a main power source. The SC is employed as auxiliary source to deal with the slow transient response of FC. An isolated three-port bidirectional full-bridge dc-dc converter is utilized to transfer energy bidirectionally between the load and the auxiliary source. The FC current-changing rate limitation is taken into account. The hybrid source including the proposed controller is validated through simulation and experimental results.

Keywords

DC-DC power convertors; fuel cells; hybrid power systems; supercapacitors; FC; FC current-changing rate limitation; SC; auxiliary source; flatness based control; fuel cell hybrid source; isolated three-port bidirectional DC-DC converter; supercapacitor; Capacitors; Mathematical model; Power conversion; Trajectory; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2011 IEEE

Conference_Location

Phoenix, AZ

Print_ISBN

978-1-4577-0542-7

Type

conf

DOI

10.1109/ECCE.2011.6063878

Filename

6063878