TY - GEN
T1 - Online Measurement of Battery Impedance Spectrum Based on DC/DC Converter using a Low-frequency Modulated Multi-Sine Excitation Signal
AU - Du, Ruijuan
AU - Zhuo, Shengrong
AU - Huangfu, Yigeng
AU - Gao, Fei
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - Electrochemical impedance spectroscopy (EIS) has great potential in detecting key performance indicators of batteries. The EIS measurement method based on the DC/DC converter has the advantages of small size, low cost, on-board usability, and real-time online measurement. A key issue in this measurement method is the selection of the excitation signal. There are shortcomings in existing excitation signals; thus, this article proposes a low-frequency modulated multi-sine excitation with a relatively low frequency of level switching. The proposed excitation is applied to the impedance measurement based on a DC/DC converter. The simulation results demonstrate that this excitation is easy to implement based on a DC/DC converter and exhibits almost the same measurement accuracy compared to the multi-sine excitation.
AB - Electrochemical impedance spectroscopy (EIS) has great potential in detecting key performance indicators of batteries. The EIS measurement method based on the DC/DC converter has the advantages of small size, low cost, on-board usability, and real-time online measurement. A key issue in this measurement method is the selection of the excitation signal. There are shortcomings in existing excitation signals; thus, this article proposes a low-frequency modulated multi-sine excitation with a relatively low frequency of level switching. The proposed excitation is applied to the impedance measurement based on a DC/DC converter. The simulation results demonstrate that this excitation is easy to implement based on a DC/DC converter and exhibits almost the same measurement accuracy compared to the multi-sine excitation.
KW - battery
KW - electrochemical impedance spectroscopy
KW - impedance measurement
KW - pulse width modulation
UR - https://www.scopus.com/pages/publications/105033222288
U2 - 10.1109/ITECAsia-Pacific63742.2025.11344908
DO - 10.1109/ITECAsia-Pacific63742.2025.11344908
M3 - 会议稿件
AN - SCOPUS:105033222288
T3 - Proceedings of the 2025 IEEE Transportation Electrification Conference and Expo, Asia-Pacific, ITEC Asia-Pacific 2025
BT - Proceedings of the 2025 IEEE Transportation Electrification Conference and Expo, Asia-Pacific, ITEC Asia-Pacific 2025
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2025 IEEE Transportation Electrification Conference and Expo, Asia-Pacific, ITEC Asia-Pacific 2025
Y2 - 25 November 2025 through 28 November 2025
ER -