A new SOC estimation algorithm without integrated error using DCIR repetitive calculation

Yong Ki Cho; Yong Min Jeong; Jung Hoon Ahn; Seung Hee Ryu; Byoung Kuk Lee

doi:10.1109/ICEMS.2014.7013590

A new SOC estimation algorithm without integrated error using DCIR repetitive calculation

Yong Ki Cho
, Yong Min Jeong
, Jung Hoon Ahn
, Seung Hee Ryu
, Byoung Kuk Lee

Department of Electronic and Electrical Engineering

Sungkyunkwan University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

5 Scopus citations

Abstract

In this paper, the State of Charge (SOC) estimation algorithm is proposed using the Direct Current Internal Resistance (DCIR) repetitive calculation, which reflects the renewed Open Circuit Voltage (OCV) in real-time by using the measured DCIR through the constant current injection method. Therefore, it is possible to improve the estimation error because there is no integration error and reset interval. Finally, the performance of the proposed method is evaluated by comparing with the estimated SOC result using the Coulomb-Counting method under the various C-rates experimental conditions. Also, a State of Health (SOH) estimation method using measured DCIR and Extended Kalman filter (EKF) is proposed. The accuracy of estimation method is evaluated by MATLAB simulation results.

Original language	English
Title of host publication	2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	865-870
Number of pages	6
ISBN (Electronic)	9781479951611
DOIs	https://doi.org/10.1109/ICEMS.2014.7013590
State	Published - 2014
Event	2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014 - Hangzhou, China Duration: 22 Oct 2014 → 25 Oct 2014

Publication series

Name	2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014

Conference

Conference	2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014
Country/Territory	China
City	Hangzhou
Period	22/10/14 → 25/10/14

Access to Document

10.1109/ICEMS.2014.7013590

Cite this

Cho, Y. K., Jeong, Y. M., Ahn, J. H., Ryu, S. H., & Lee, B. K. (2014). A new SOC estimation algorithm without integrated error using DCIR repetitive calculation. In 2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014 (pp. 865-870). Article 7013590 (2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICEMS.2014.7013590

Cho, Yong Ki ; Jeong, Yong Min ; Ahn, Jung Hoon et al. / A new SOC estimation algorithm without integrated error using DCIR repetitive calculation. 2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014. Institute of Electrical and Electronics Engineers Inc., 2014. pp. 865-870 (2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014).

@inproceedings{98c2f16cc1064e2380a2d5b8da5cd738,

title = "A new SOC estimation algorithm without integrated error using DCIR repetitive calculation",

abstract = "In this paper, the State of Charge (SOC) estimation algorithm is proposed using the Direct Current Internal Resistance (DCIR) repetitive calculation, which reflects the renewed Open Circuit Voltage (OCV) in real-time by using the measured DCIR through the constant current injection method. Therefore, it is possible to improve the estimation error because there is no integration error and reset interval. Finally, the performance of the proposed method is evaluated by comparing with the estimated SOC result using the Coulomb-Counting method under the various C-rates experimental conditions. Also, a State of Health (SOH) estimation method using measured DCIR and Extended Kalman filter (EKF) is proposed. The accuracy of estimation method is evaluated by MATLAB simulation results.",

author = "Cho, \{Yong Ki\} and Jeong, \{Yong Min\} and Ahn, \{Jung Hoon\} and Ryu, \{Seung Hee\} and Lee, \{Byoung Kuk\}",

note = "Publisher Copyright: {\textcopyright} 2014 IEEE.; 2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014 ; Conference date: 22-10-2014 Through 25-10-2014",

year = "2014",

doi = "10.1109/ICEMS.2014.7013590",

language = "English",

series = "2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "865--870",

booktitle = "2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014",

}

Cho, YK, Jeong, YM, Ahn, JH, Ryu, SH & Lee, BK 2014, A new SOC estimation algorithm without integrated error using DCIR repetitive calculation. in 2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014., 7013590, 2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014, Institute of Electrical and Electronics Engineers Inc., pp. 865-870, 2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014, Hangzhou, China, 22/10/14. https://doi.org/10.1109/ICEMS.2014.7013590

A new SOC estimation algorithm without integrated error using DCIR repetitive calculation. / Cho, Yong Ki; Jeong, Yong Min; Ahn, Jung Hoon et al.
2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014. Institute of Electrical and Electronics Engineers Inc., 2014. p. 865-870 7013590 (2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - A new SOC estimation algorithm without integrated error using DCIR repetitive calculation

AU - Cho, Yong Ki

AU - Jeong, Yong Min

AU - Ahn, Jung Hoon

AU - Ryu, Seung Hee

AU - Lee, Byoung Kuk

PY - 2014

Y1 - 2014

N2 - In this paper, the State of Charge (SOC) estimation algorithm is proposed using the Direct Current Internal Resistance (DCIR) repetitive calculation, which reflects the renewed Open Circuit Voltage (OCV) in real-time by using the measured DCIR through the constant current injection method. Therefore, it is possible to improve the estimation error because there is no integration error and reset interval. Finally, the performance of the proposed method is evaluated by comparing with the estimated SOC result using the Coulomb-Counting method under the various C-rates experimental conditions. Also, a State of Health (SOH) estimation method using measured DCIR and Extended Kalman filter (EKF) is proposed. The accuracy of estimation method is evaluated by MATLAB simulation results.

AB - In this paper, the State of Charge (SOC) estimation algorithm is proposed using the Direct Current Internal Resistance (DCIR) repetitive calculation, which reflects the renewed Open Circuit Voltage (OCV) in real-time by using the measured DCIR through the constant current injection method. Therefore, it is possible to improve the estimation error because there is no integration error and reset interval. Finally, the performance of the proposed method is evaluated by comparing with the estimated SOC result using the Coulomb-Counting method under the various C-rates experimental conditions. Also, a State of Health (SOH) estimation method using measured DCIR and Extended Kalman filter (EKF) is proposed. The accuracy of estimation method is evaluated by MATLAB simulation results.

UR - https://www.scopus.com/pages/publications/84922792927

U2 - 10.1109/ICEMS.2014.7013590

DO - 10.1109/ICEMS.2014.7013590

M3 - Conference contribution

AN - SCOPUS:84922792927

T3 - 2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014

SP - 865

EP - 870

BT - 2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014

Y2 - 22 October 2014 through 25 October 2014

ER -

Cho YK, Jeong YM, Ahn JH, Ryu SH, Lee BK. A new SOC estimation algorithm without integrated error using DCIR repetitive calculation. In 2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014. Institute of Electrical and Electronics Engineers Inc. 2014. p. 865-870. 7013590. (2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014). doi: 10.1109/ICEMS.2014.7013590

A new SOC estimation algorithm without integrated error using DCIR repetitive calculation

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