摘要
为保证磷酸铁锂(LFP)电池能够安全、高效、经济地运行,不仅要规定电池的运行范围,而且在其运行范围内划分工作区间。以电池电压为标尺将LFP运行范围进行优化,分为三类工作区间,即最佳工作区、辨识修正区和故障区,并对故障区区分为报警和保护两部分。通过对电池工作区间的影响因素进行详细论述,剖析电池剩余电量(SOC)、内阻、电流以及其他因素对工作区的影响。利用辨识修正区的电气特性实现SOC状态的算法修正以及均衡控制技术的优化。
To ensure lithiun iron phosphate （LFP） battery runs safely, effectively and economically, it is necessary not only to stipulate battery＇ s operation range, hut also to divide work intervals in the operation range. Based on battery＇ s voltage,the operation range of LFP was optimized as divided into three work intervals, namely best run interval, identification correction interval and fauh interval. The fault interval also is divided into two parts： alarm and protection. This paper described the influential factors on battery＇ s work intervals. Based on it, the influence of battery＇ s SOC （ state of charge）, internal resistance, current and other factors on work intervals was analyzed. The electrical characteristics of identification correction interval were used to correct the algorithm of SOC and to realize the optimization of proportionate control technology.
出处
《电器与能效管理技术》
2014年第10期60-66,共7页
Electrical & Energy Management Technology
基金
国家电网公司基础性前瞻性科技项目基金(DG71-13-002
DG71-13-014)
