Design of hybrid energy storage system using dual batteries for renewable applications

Author

Takeda, Kenji ; Takahashi, C. ; Arita, H. ; Kusumi, Naohiro ; Amano, M. ; Emori, A.

Author_Institution

Hitachi Res. Lab., Hitachi Ltd., Hitachi, Japan

fYear

2014

fDate

27-31 July 2014

Firstpage

1

Lastpage

5

Abstract

Battery systems are mainly designed in terms of charge/discharge power and energy capacity. Hybrid Battery Energy Storage Systems (HBESS) which are made of several kinds of batteries can reduce system volume and cost. In this paper, power and energy management algorithms and costs estimation method for HBESS are described. The validity of the algorithms is confirmed by simulations using charge/discharge power demand waveforms of a wind farm. By using this algorithm, it is estimated that in some cases up to 36% of battery cost can be reduced, compared to single-type BESS. Furthermore, the algorithms are demonstrated on a test 200kW system in our laboratory consisting of two kinds of lithium-ion battery: high power type for hybrid vehicles, and high energy type for stationary applications.

Keywords

energy management systems; hybrid electric vehicles; hybrid power systems; secondary cells; HBESS; charge-discharge power demand waveforms; cost reduction; costs estimation method; dual batteries; energy capacity; energy management algorithm; hybrid battery energy storage systems; hybrid vehicles; lithium-ion battery; power management algorithm; renewable energy applications; single-type BESS; Algorithm design and analysis; Batteries; Discharges (electric); Filtering; Vectors; Wind farms; Energy storage system (ESS); lead-acid battery; lithium-ion battery; renewable energy;

fLanguage

English

Publisher

ieee

Conference_Titel

PES General Meeting | Conference & Exposition, 2014 IEEE

Conference_Location

National Harbor, MD

Type

conf

DOI

10.1109/PESGM.2014.6938860

Filename

6938860