摘要
电池组不一致性对于电动汽车的安全性和电池管理系统的复杂度有着重要影响。设计MH-Ni电池组不一致性研究试验,结合内阻模型分析了电流、SOC和温度对电池组不一致性的影响,建立了电池组过放电过程数学模型,提出确定电池管理系统电压传感器数量的新方法,通过试验对模型及方法进行了验证。
Safety of electrical vehicle and complexity of battery management system were influenced by nonuniformity characteristics of battery pack. Special tests were designed to analyze how current,SOC and temperature influence nonuniformity characteristics of a Ni-MH battery pack by the study of internal resistance battery model. Over-discharge characteristic of Ni-MH battery was modeled; a new method on how to determine the voltage sensor number of battery management system was proposed and validated by test data.
出处
《电源技术》
CAS
CSCD
北大核心
2005年第11期750-754,共5页
Chinese Journal of Power Sources
基金
国家"十五"863计划电动汽车重大专项基金资助项目(2003AA501100)
关键词
MH—Ni电池组
不一致性
过放电
建模
Ni-MH battery
nonuniformity characterstic
over-discharge
modeling
