基于PNGV电路模型的航空钴酸锂电池内阻研究  

Research on Internal Resistance of Aviation Battery Based on PNGV Circuit Model

作　　者：梁奇[1] 于春梅[1] 王顺利[1] 刘力舟 

机构地区：[1]西南科技大学信息工程学院,绵阳621010

出　　处：《电源学报》2017年第2期153-158,共6页Journal of Power Supply

基　　金：四川省创新训练资助项目(201410619004);四川省科技支撑计划资助项目(2014GZ0078);光电检测技术与应用资助项目(12zd1105)~~

摘　　要：对航空钴酸锂离子电池进行PNGV建模。通过模型的建立,可依据测试出的外部变量值来估算电池的内部状态变量。实验使用HPPC(hybrid pulse power characterization)法来获取锂电池在脉冲加载和过渡过程中的各项参数。最后通过Matlab/Simulink对电池的PNGV等效模型进行仿真分析。研究表明:所选取的PNGV模型精度高,能真实地模拟电池充放电特性;在固定温度和已知SOC的情况下,模型参数能得到较准确的估计。本实验结论可为锂电池的内部状态变量估算提供理论依据。Based on the partnership foranew generation of vehicle （PNGV） model, the internal state variables of the battery are estimated based on the measured external variables.The experiment uses hybrid pulse power characterization （HPPC） method to obtain the lithium battery in the pulse loading and the transition process parameters. Finally, the PNGV equivalent model of the battery is simulated and analyzed by Matlab/SimulinkThe results show that the selected PNGV model has highprecision and can simulate the charge and discharge characteristics of battery truly. The model parameters can be estimated accurately under fixed temperature and known S0C.The experimental results can provide a theoretical basis for internal state variable estimation of lithium batteries.

关 键 词：锂离子电池 混合脉冲功率特性 HPPC PNGV模型 参数辨识 内阻 

分 类 号：TP302.1[自动化与计算机技术—计算机系统结构]