Impedance-based and circuit-parameter-based battery models for HEV power systems
- Authors
- Hang, J. H.; Yoo, J. Y.
- Issue Date
- 1-10월-2008
- Publisher
- KOREAN SOC AUTOMOTIVE ENGINEERS-KSAE
- Keywords
- HEV; LiPB; battery modeling; electrical equivalent circuit; impedence; circuit parameter
- Citation
- INTERNATIONAL JOURNAL OF AUTOMOTIVE TECHNOLOGY, v.9, no.5, pp.615 - 623
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- INTERNATIONAL JOURNAL OF AUTOMOTIVE TECHNOLOGY
- Volume
- 9
- Number
- 5
- Start Page
- 615
- End Page
- 623
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/122577
- DOI
- 10.1007/s12239-008-0073-y
- ISSN
- 1229-9138
- Abstract
- The relationship between voltage and current inside a battery, or the impedence, plays an important role in the simulation and design of hybrid electric vehicle (HEV) power systems. This papar proposes a new approach employing the Bode plot for evaluation of equivalent circuit parameters for a lithium polymer battery (LiPB) for HEV application. The main concept of the proposed circuit-parameter-based model approach is the application of a transfer function used to process the frequency response of the battery for calculation of accurate circuit parameters. Additionally, the Bode plot is also applied to derive the impedance-based model direclty from frequency response measurements for shot time simulations and practical use in the HEV. Two methods for battery modeling are proposed and verified experimentally with the voltage-current profile of a conventional HEV using the battery measured in this paper. The results show that the proposed circuit-parameter-based technique provides a satisfactory battery equivalent circuit model.
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