Battery management for fuel cell/battery hybrid power supply system

Author

Sato, Katsuyuki ; Yachi, Toshiaki ; Takeuchi, Akira ; Babasaki, Tadatoshi

Author_Institution

Grad. Sch. of Eng., Tokyo Univ. of Sci., Tokyo, Japan

fYear

2011

fDate

9-13 Oct. 2011

Firstpage

1

Lastpage

7

Abstract

This paper describes an operation control method for fuel cell/battery hybrid power supply systems and a state of charge (SOC) estimation method to simulate their operation. Quickly charging or discharging batteries can compensate for demand load power fluctuation, but battery management is essential in these hybrid power supply systems. In this study, a control method for maintaining a constant value of SOC is proposed and applied to experiments using a charger/discharger and small 6-Ah Ni-MH batteries. An SOC estimation method is also proposed to simulate the operations under fluctuating load demand. The characteristics of the control method are clarified through simulation studies. These results show the effectiveness of the control method at maintaining SOC.

Keywords

battery charge measurement; battery management systems; fuel cell power plants; hybrid power systems; battery management; fuel cell/battery hybrid power supply systems; operation control method; state of charge estimation method; Batteries; Discharges; Iron; System-on-a-chip; Ni-MH; battery; fuel cell; hybrid power supply system;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference (INTELEC), 2011 IEEE 33rd International

Conference_Location

Amsterdam

ISSN

2158-5210

Print_ISBN

978-1-4577-1249-4

Electronic_ISBN

2158-5210

Type

conf

DOI

10.1109/INTLEC.2011.6099747

Filename

6099747