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电动汽车锂电池SOC与SOH的联合在线监测技术.docx

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电动汽车锂电池SOC与SOH的联合在线监测技术

目录

内容描述................................................3

1.1研究背景...............................................3

1.2研究意义...............................................4

1.3文献综述...............................................4

电动汽车锂电池SOC与SOH基本概念..........................5

2.1电池状态...............................................6

2.2电池健康状态...........................................7

2.3SOC与SOH的关系.........................................8

电动汽车锂电池SOC与SOH联合在线监测技术原理..............9

3.1监测方法概述...........................................9

3.2关键技术分析..........................................10

3.2.1数据采集技术........................................11

3.2.2模型构建技术........................................12

3.2.3诊断算法研究........................................13

3.2.4预测算法研究........................................14

数据采集与预处理.......................................14

4.1数据采集系统设计......................................15

4.2数据预处理方法........................................16

4.2.1数据清洗............................................17

4.2.2数据归一化..........................................18

模型构建与算法研究.....................................19

5.1模型构建方法..........................................20

5.1.1基于物理模型的SOC与SOH估算..........................21

5.1.2基于机器学习的SOC与SOH估算..........................22

5.2诊断算法研究..........................................23

5.2.1故障诊断方法........................................24

5.2.2故障预测方法........................................24

5.3预测算法研究..........................................25

5.3.1电池寿命预测方法....................................27

5.3.2电池性能预测方法....................................28

实验与结果分析.........................................28

6.1实验平台搭建..........................................29

6.2实验数据采集..........................................30

6.3实验结果分析..........................................31

6.3.1SOC与SOH估算结果....................................32

6.3.2故障诊断与预测结果..................................33

性能评估与优化..............................

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