TY - GEN
T1 - Converter-Based Online EIS Measurement of FC Stack Using Binary Multi-Frequency Signals
AU - Ma, Yuqi
AU - Zhuo, Shengrong
AU - Zhang, Yonghui
AU - Huangfu, Yigeng
AU - Li, Bing
AU - Gao, Fei
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - Electrochemical impedance spectroscopy (EIS) testing is a key technical tool to evaluate the health of fuel cells. In recent years, the online EIS measurement method based on a DC/DC converter has gradually become a research focus due to its advantages of no interruption of system operation and low cost. However, how to further improve the efficiency and accuracy of online EIS measurement is still an urgent problem. To this end, this paper proposes the use of a binary multi-frequency signal (BMFS) as an excitation signal. It has two advantages: firstly, it possesses multi-frequency component characteristics; secondly, it ensures a high energy distribution for each frequency component. These features significantly improve the interference resistance in noisy environments, thereby achieving high-precision online measurements of EIS. To verify the effectiveness of the proposed method, a simulation model is constructed on the MATLAB/Simulink platform, and the experimental results prove the feasibility of the method.
AB - Electrochemical impedance spectroscopy (EIS) testing is a key technical tool to evaluate the health of fuel cells. In recent years, the online EIS measurement method based on a DC/DC converter has gradually become a research focus due to its advantages of no interruption of system operation and low cost. However, how to further improve the efficiency and accuracy of online EIS measurement is still an urgent problem. To this end, this paper proposes the use of a binary multi-frequency signal (BMFS) as an excitation signal. It has two advantages: firstly, it possesses multi-frequency component characteristics; secondly, it ensures a high energy distribution for each frequency component. These features significantly improve the interference resistance in noisy environments, thereby achieving high-precision online measurements of EIS. To verify the effectiveness of the proposed method, a simulation model is constructed on the MATLAB/Simulink platform, and the experimental results prove the feasibility of the method.
KW - Fuel cell stack
KW - electrochemical impedance spectroscopy (EIS)
KW - interleaved DC-DC converter
KW - multi-frequency excitation
UR - https://www.scopus.com/pages/publications/105011049766
U2 - 10.1109/IAS62731.2025.11061718
DO - 10.1109/IAS62731.2025.11061718
M3 - 会议稿件
AN - SCOPUS:105011049766
T3 - Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)
BT - 2025 IEEE Industry Applications Society Annual Meeting, IAS 2025
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2025 IEEE Industry Applications Society Annual Meeting, IAS 2025
Y2 - 15 June 2025 through 20 June 2025
ER -