磷酸铁锂电池老化分析及模型搭建  

Analysis and simulation of LiFePO_4 battery considering deterioration

作　　者：张宝群 马龙飞 范刘洋[2] 汪可友[2] 时锐 

机构地区：[1]国网北京电科院,北京100085 [2]上海交通大学电气工程系,上海200240

出　　处：《电源技术》2015年第11期2374-2376,共3页Chinese Journal of Power Sources

基　　金：国家"863"计划项目(2011AA05A109)

摘　　要：为了对电动汽车动力电池进行精确建模,对磷酸铁锂电池进行了循环寿命测试及混合脉冲功率特性测试。通过循环寿命测试的结果分析,研究了电池老化对电池开路电压、电池内阻等参数的影响。结合混合脉冲功率特性测试的结果,在Simulink上搭建了电池的仿真模型。仿真结果表明,该模型精度较高,能够很好体现电池特性。The parameters of battery system for electric vehicles are deteriorating with multiple charging and discharging behavior. An improved PNGV model which could reflect battery deterioration was proposed. In order to accurately model electric vehicle batteries, cycle life test and hybrid pulse power characteristic test had to be performed. Based on the experimental data of the cycle life test, battery deterioration effects on open circuit voltage, internal resistance and other parameters were analyzed. The proposed model was validated using Matlab/Simulink. Simulation results compared to the experimental data show the efficiency and accuracy of the proposed model.

关 键 词：电动汽车 磷酸铁锂电池 电池老化 PNGV模型 

分 类 号：TM912.9[电气工程—电力电子与电力传动]