Sensitivity analysis of the impedance parameters of converters based on the Sobol method

Zhongfei Qiao; Rongfeng Yang; Weiqiang Liao; Yibin Fang; Yingjun Gui; Xin Dong

doi:10.1117/12.3004249

25 September 2023 Sensitivity analysis of the impedance parameters of converters based on the Sobol method

Zhongfei Qiao, Rongfeng Yang, Weiqiang Liao, Yibin Fang, Yingjun Gui, Xin Dong

Proceedings Volume 12788, Second International Conference on Energy, Power, and Electrical Technology (ICEPET 2023); 127883A (2023) https://doi.org/10.1117/12.3004249
Event: Second International Conference on Energy, Power, and Electrical Technology (ICEPET 2023), 2023, Kuala Lumpur, Malaysia

Abstract

To address the problem that the output impedance of the bidirectional DC/DC converter is difficult to quantify due to the participation of multiple control links and the coupling of multiple parameters, a sensitivity analysis of the output impedance of the bidirectional DC/DC converter based on the Sobol method is proposed to quantify the influence of each parameter on the output impedance. Firstly, the mathematical model of the bi-directional DC/DC converter of the marine lithium battery energy storage system is established and the analytical expression of the output impedance of the bidirectional DC/DC converter is derived; secondly, the Sobol method is used to carry out the impedance sensitivity analysis and quantify the influence of each parameter. Finally, the output impedance model of the bi-directional DC/DC converter of the marine lithium battery energy storage system is measured by MATLAB/Simulink simulation, and the correctness of the sensitivity analysis is verified by changing the relevant parameters.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Zhongfei Qiao, Rongfeng Yang, Weiqiang Liao, Yibin Fang, Yingjun Gui, and Xin Dong "Sensitivity analysis of the impedance parameters of converters based on the Sobol method", Proc. SPIE 12788, Second International Conference on Energy, Power, and Electrical Technology (ICEPET 2023), 127883A (25 September 2023); https://doi.org/10.1117/12.3004249

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KEYWORDS

Batteries

Circuit switching

Chlorine

Matrices

Oceanography

Control systems

Statistical analysis

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