A novel model of the initial state of charge estimation for LiFePO4 batteries
文献类型：期刊论文
| 作者 | Zhang, Yanhui1,2; Song, Wenji1 ; Lin, Shili1; Feng, Ziping1
|
| 刊名 | journal of power sources
 |
| 出版日期 | 2014-02-15 |
| 卷号 | 248页码:1028-1033 |
| 关键词 | Battery Energy efficiency State of charge Hybrid power generation system |
| 英文摘要 | the state-of-charge (soc) is an important performance parameter and evaluation index in rechargeable battery energy storage systems. here, a novel smart estimation method based on coulomb counting is proposed in order to enhance estimation accuracy. firstly, an enhanced model for the initial soc (soc0) estimation based on dynamic multi-parameter method is investigated, because soc0 plays a key role in calculating real soc in-time. all the design limits, such as voltage, temperature, are used as its constraints. and more importantly, the relaxation effect also is considered. the soc0 with the main parameters satisfies gauss function. secondly, the quantitative relations of the energy efficiencies are measured and analyzed under the moderate discharging situation. the results show a negative quadratic correlation between energy efficiency and rate, and exhibit a reduction in energy efficiency as rate increases. lastly, a test with several consecutive hybrid pulse power characteristic test profiles is carried. the experimental results indicate that the correction of soc0 can efficiently limit the error below 4%, and also exhibit that considering on the effect of energy efficiency can further reduce its estimation error. (c) 2013 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | electrochemistry ; energy & fuels |
| 研究领域[WOS] | electrochemistry ; energy & fuels |
| 关键词[WOS] | lithium-ion batteries ; electric vehicles ; of-charge ; management |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000330551000129 |
| 源URL | [http://ir.giec.ac.cn/handle/344007/10676]  |
| 专题 | 中国科学院广州能源研究所 |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 2.Univ Chinese Acad Sci, Beijing 10049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Yanhui,Song, Wenji,Lin, Shili,et al. A novel model of the initial state of charge estimation for LiFePO4 batteries[J]. journal of power sources,2014,248:1028-1033. |
| APA | Zhang, Yanhui,Song, Wenji,Lin, Shili,&Feng, Ziping.(2014).A novel model of the initial state of charge estimation for LiFePO4 batteries.journal of power sources,248,1028-1033. |
| MLA | Zhang, Yanhui,et al."A novel model of the initial state of charge estimation for LiFePO4 batteries".journal of power sources 248(2014):1028-1033. |
入库方式： OAI收割
来源：广州能源研究所
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