基于UKF的锂离子电池SOC估算方法-控制工程专业论文.docxVIP

estimate the battery SOC, through the analysis of the influence factors of the battery SOC, respectively study the relationship with environment temperature, charge and discharge rate , cycle times, battery internal resistance and the battery SOC. Then obtain the revised Ah counting method. ④Study a unscented kalman filer method, and its core ideology UT transform, then establish the SOC estimation model by using UKF filter, and simulation in Matlab. Then compared with the estimation results based on the revised Ah counting method, the conclusion verify that the UKF filter is effective in estimation battery SOC This paper based on a comprehensive battery model which combined the Thevenin model with the KiBaM model, using UKF filter to estimate the battery SOC, and compared it with the revised Ah counting method, the simulation results show that UKF is effective in estimation battery SOC Keywords: lithium-ion battery, state-of-charge, battery equivalent model, unscented kalman filter 目 录 中文摘要I 英文摘要 II HYPERLINK \l _bookmark0 1 绪 论 1 HYPERLINK \l _bookmark1 1.1 论文研究背景及意义 1 HYPERLINK \l _bookmark2 1.1.1 论文研究背景 1 HYPERLINK \l _bookmark3 1.1.2 论文研究意义 2 HYPERLINK \l _bookmark4 1.2 电池状态估算的研究现状 3 HYPERLINK \l _bookmark5 1.2.1 国外研究现状 3 HYPERLINK \l _bookmark6 1.2.2 国内研究现状 4 HYPERLINK \l _bookmark7 1.3 论文的主要内容 5 HYPERLINK \l _bookmark8 2 锂电池的工作原理及性能指标 6 HYPERLINK \l _bookmark9 2.1 锂电池的结构及工作原理 6 HYPERLINK \l _bookmark10 2.2 电池的电极极化 8 HYPERLINK \l _bookmark11 2.3 锂电池的性能指标 9 HYPERLINK \l _bookmark12 2.3.1 电池容量和比容量 9 HYPERLINK \l _bookmark13 2.3.2 电池的能量和功率 11 HYPERLINK \l _bookmark14 2.3.3 电池电动势和电压 11 HYPERLINK \l _bookmark15 2.3.4 电池电流 12 HYPERLINK \l _bookmark16 2.3.5 电池的荷电状态 SOC 与放电深度 DOD 12 HYPERLINK \l _bookmark17 2.4 本章小结 13 HYPERLINK \l _bookmark18 3 锂电池动态等效模型研究 14 HYPERLINK \l _bookmark19 3.1 锂离子电池模型建立 14 HYPERLINK \l _bookmark20 3.1.1 模型 15 HYPERLINK \l _bookmark21 3.1.2 ?模型 15 HYPERLINK \l _bookmark22 PNGV 模型 16 HYPERLINK