Average model of dual active bridge interfacing ultra-capacitor in electrical vehicle

Author

Amari, M. ; Khelifi, I. ; Bacha, F.

Author_Institution

Lab. of Comput. for Ind. Syst., Univ. of Tunis, Tunis, Tunisia

fYear

2014

fDate

25-27 March 2014

Firstpage

1

Lastpage

6

Abstract

In this paper a new bidirectional DC-DC converter is proposed to transfer energy between ultra-capacitor and DC bus in electric vehicle. We present the average model of this converter. This model is used to calculate the small signal and transient characteristics of the converter. The derived small signal model can be developed and the transfer function between the output voltage and the duty cycle is calculated. This function is used to design a PI controller to regulate the output voltage at desired voltage in the closed loop under load and input voltage variations with at short time response.

Keywords

DC-DC power convertors; electric vehicles; supercapacitors; transfer functions; DC bus; PI controller design; average model; bidirectional DC-DC converter; closed loop system; dual active bridge interfacing ultracapacitor; duty cycle; electrical vehicle; input voltage variations; output voltage; output voltage regulation; short time response; small signal model; transfer function; transient characteristics; Bridge circuits; Capacitors; Equations; Mathematical model; Power conversion; Voltage control; Average model; Boost Mode Buck mode DC-DC converter; Dual Active Bridge; Small signal;

fLanguage

English

Publisher

ieee

Conference_Titel

Renewable Energy Congress (IREC), 2014 5th International

Conference_Location

Hammamet

Print_ISBN

978-1-4799-2196-6

Type

conf

DOI

10.1109/IREC.2014.6826984

Filename

6826984