Multiparameters Model of the Initial SOC Considering the Relaxation Effect

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	Multiparameters Model of the Initial SOC Considering the Relaxation Effect
	Zhang, Yanhui 1,2; Song, Wenji1 ; Lin, Shili 1; Feng, Ziping1
刊名	acs sustainable chemistry & engineering
	2014-04-01
卷号	2 期号:4 页码:599-605
关键词	Battery Battery models Initial state-of-charge (SOC0) State-of-charge (SOC)
英文摘要	to improve the accuracy of the initial state-of-charge (soco) estimation, an enhanced soc0 model-based ampere-hour (ah) model of a lifepo4 battery is presented for application in a battery energy storage system. it varies as a function of the open circuit voltage (ocv), rates, and relaxation effect. here, the thevenin equivalent circuit model is selected to model the lifepo4 battery, and its mathematic equations are deduced to determine the inherent trade-off between the time constant and main parameter of the battery, which can address the dilemma of the conventional soc0 method (ocv model) as the relaxation effect and how long the battery takes to reach a steady state. to illustrate advantages of the enhanced estimation model, a comparison analysis is performed on the enhanced model with the former model under the dynamic stress test. furthermore, the experimental results indicate that the correction of soc0 can significantly decrease the estimation error. the enhanced soc0 model is expected to help determine operational parameters for batteries of variable power sources.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, multidisciplinary ; engineering, chemical
研究领域[WOS]	chemistry ; engineering
关键词[WOS]	state-of-charge ; open-circuit voltage ; battery model ; estimator ; design
收录类别	SCI
语种	英语
WOS记录号	WOS:000334092600008
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/10711]
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, Guangdong, 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. Multiparameters Model of the Initial SOC Considering the Relaxation Effect[J]. acs sustainable chemistry & engineering,2014,2(4):599-605.
APA	Zhang, Yanhui,Song, Wenji,Lin, Shili,&Feng, Ziping.(2014).Multiparameters Model of the Initial SOC Considering the Relaxation Effect.acs sustainable chemistry & engineering,2(4),599-605.
MLA	Zhang, Yanhui,et al."Multiparameters Model of the Initial SOC Considering the Relaxation Effect".acs sustainable chemistry & engineering 2.4(2014):599-605.