Working Condition Real-Time Monitoring Model of Lithium Ion Batteries Based on Distributed Parameter System and Single Particle Model  

基于分布参数系统和单粒子模型的锂离子电池工作状态实时监控模型

作　　者：黄亮[1] 姚畅[2] 

机构地区：[1]北京交通大学电子信息工程学院,北京100044 [2]国家自然科学基金委员会信息中心,北京100085

出　　处：《Chinese Journal of Chemical Physics》2016年第5期623-628,I0002,共7页化学物理学报（英文）

摘　　要：Lithium ion batteries are complicated distributed parameter systems that can be described preferably by partial differential equations and a field theory. To reduce the solution difficulty and the calculation amount, if a distributed parameter system is described by ordinary differential equations （ODE） during the analysis and the design of distributed parameter system, the reliability of the system description will be reduced, and the systemic errors will be introduced. Studies on working condition real-time monitoring can improve the security because the rechargeable LIBs are widely used in many electronic systems and electromechanical equipment. Single particle model （SPM） is the simplification of LIB under some approximations, and can estimate the working parameters of a LIB at the faster simulation speed. A LIB modelling algorithm based on PDEs and SPM is proposed to monitor the working condition of LIBs in real time. Although the lithium ion concentration is an unmeasurable distributed parameter in the anode of LIB, the working condition monitoring model can track the real time lithium ion concentration in the anode of LIB, and calculate the residual which is the difference between the ideal data and the measured data. A fault alarm can be triggered when the residual is beyond the preset threshold. A simulation example verifies that the effectiveness and the accuracy of the working condition real-time monitoring model of LIB based on PDEs and SPM.

关 键 词：Lithium ion battery Distributed parameter system Single particle model Condition monitoring 

分 类 号：O[理学]