基于运行数据融合的储能电池一致性评估方法研究  

Research on Consistency Assessment Method for Energy Storage Battery Based on Operating Data Fusion

作　　者：贾学翠[1] 李相俊[1] 汪奂伶[1] 张宇航[1] 惠东[1] 

机构地区：[1]新能源与储能运行控制国家重点实验室(中国电力科学研究院),北京100192

出　　处：《供用电》2017年第4期29-35,共7页Distribution & Utilization

基　　金：中国电力科学研究院青年基金项目(DG84-16-036);北京市科技新星计划(Z141101001814094)~~

摘　　要：利用储能电池的电压极差、电压标准差系数以及温度极差3项电池一致性指标,提出基于模糊评估的储能电池一致性综合评估方法。该方法通过对一段时间内电池储能系统历史运行数据的融合,得出该时间段内的储能电池一致性,方法简便实用。以某250kW磷酸铁锂电池储能系统的历史数据为基础,对电池一致性进行评估分析,结果表明该方法可准确评估电池一致性,并可及时发现可能存在异常的单体电池,进行重点分析与监测。一致性评估分析结果将为电池储能系统的检修维护提供重要的参考依据。An fuzzy assessment method for energy storage battery consistency over a period of time is proposed based on three battery consistency indexes,which are maximum voltage difference,voltage standard deviation coefficient and maximum temperature difference. The battery consistency assessment method is based on historical operating data,which is simple and practical. The historical data of a 250 kW lithium-iron phosphate battery energy storage system is used to analyze the battery consistency,the results show that the proposed method can accurately assess the battery consistency. It also can discover the possible exception battery for analysis and monitoring. The assessment results will provide important reference for battery energy storage system maintenance.

关 键 词：储能电池 一致性 数据融合 模糊评估方法 

分 类 号：TM72[电气工程—电力系统及自动化]