分阶段电池SOC估算研究  

Estimation research of battery SOC in stages

作　　者：邓涛[1] 李德才[1] 罗卫兴 韩海硕 DENG Tao;LI De-cai;LUO Wei-xing;HAN Hai-shuo(School of Mechatronics ＆ Automotive Engineering, Chongqing Jiaotong University,chongqing 400074,chin)

机构地区：[1]重庆交通大学机电与车辆工程学院,重庆400074

出　　处：《电源技术》2018年第5期651-655,共5页Chinese Journal of Power Sources

基　　金：国家自然科学基金资助项目(51305473);中国博士后科学基金资助项目(2014M552317);重庆市基础与前沿研究计划项目(cs tc2013jcyj A60007);重庆市教委科学技术研究项目(KJ 120421);重庆市博士后研究人员科研项目特别资助(xm2014032)

摘　　要：针对电池SOC传统单一或简单综合估算算法精度不高且计算量较大的问题,基于电池本身特性及汽车行驶过程中电池状态特点,提出分阶段处理思想,将估算过程分为纯充电、纯放电和充放电混合阶段,针对不同阶段提出对应的分阶段估算算法和综合算法,并进行分阶段和综合仿真分析比较。结果表明:各个算法在分阶段处理后的相应估算效果符合要求,为综合算法提供了理论基础;综合算法在复杂工况情况下对SOC的估算效果更加灵敏精确,计算量更小。For the problem of low accuracy and large computation of single or simple synthesis estimation algorithm for battery SOC, based on the characteristics of battery and the battery state in the driving process, the idea of phase processing was proposed. The estimation process could be divided into pure charge, pure discharge with charge and discharge mixing stage. The corresponding phase estimation algorithm and comprehensive algorithm were proposed in different stages. The phase and comprehensive simulation analysis and comparison were carried out. The results show that the corresponding estimation effect of each algorithm coincides with the requirements, providing theoretic basis for the comprehensive algorithm. The estimation effect of comprehensive algorithm for SOC is more sensitive and accurate under complex condition.

关 键 词：估算算法 分阶段 SOC 

分 类 号：TM912[电气工程—电力电子与电力传动]