Diode-clamped multilevel converter topology for battery cells charging applications

Author

Saha, Ankita ; Sozer, Yilmaz

Author_Institution

Electr. & Comput. Eng. Dept., Univ. of Akron, Akron, OH, USA

fYear

2013

fDate

21-23 May 2013

Firstpage

1

Lastpage

6

Abstract

A new charger control strategy for optimum charging of individual battery cells is proposed. The charger can directly charge individual battery cells based on their state-of-charge (SOC) using multilevel converter topology. In multilevel converter, individual cells are connected in series on the DC side of the converter. By choosing switching pattern and their duration in a combined manner, the charging current in each cell of the converter can be controlled very competently. The technique using diode-clamped multilevel converter is an excellent candidate for the unification of the charger and the individual cell current controller. The proposed control technique in balancing the individual cell charging currents is verified for different operating conditions.

Keywords

network topology; power convertors; secondary cells; battery cells charging applications; charger control strategy; choosing switching pattern; diode-clamped multilevel converter topology; optimum charging; state-of-charge; Aerospace electronics; Batteries; Switches; System-on-chip; Topology; Vectors; Battery charging; Multilevel converter; Space vector PWM; State-of-charge (SOC);

fLanguage

English

Publisher

ieee

Conference_Titel

Energytech, 2013 IEEE

Conference_Location

Cleveland, OH

Type

conf

DOI

10.1109/EnergyTech.2013.6645309

Filename

6645309