A novel state of health estimation method of Li-ion battery using group method of data handling

被引：178

作者：

Wu, Ji ^{[1
]}

Wang, Yujie ^{[1
]}

Zhang, Xu ^{[1
]}

Chen, Zonghai ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Automat, Hefei 230027, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2016年 / 327卷

关键词：

State of health; Control theory; Group method of data handling; Differential geometry; PARTICLE-FILTER; CHARGE ESTIMATION; DYNAMIC CURRENTS; MODEL; TEMPERATURES; FRAMEWORK; SYSTEMS; SOC;

D O I：

10.1016/j.jpowsour.2016.07.065

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper, the control theory is applied to assist the estimation of state of health (SoH) which is a key parameter to battery management. Battery can be treated as a system, and the internal state, e.g. SoH, can be observed through certain system output data. Based on the philosophy of human health and athletic ability estimation, variables from a specific process, which is a constant current charge subprocess, are obtained to depict battery SoH. These variables are selected according to the differential geometric analysis of battery terminal voltage curves. Moreover, the relationship between the differential geometric properties and battery SoH is modelled by the group method of data handling (GMDH) polynomial neural network. Thus, battery SoH can be estimated by GMDH with inputs of voltage curve properties. Experiments have been conducted on different types of Li-ion battery, and the results show that the proposed method is valid for SoH estimation. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：457 / 464

页数：8

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