The design of cable joint fault detection method based on augmented time-frequency domain reflection method

Jinhai Yang; Hongjiang Yin; Xuefeng Liu; Lei Yu; Hongping Wang

doi:10.1117/12.2668535

14 February 2023 The design of cable joint fault detection method based on augmented time-frequency domain reflection method

Jinhai Yang, Hongjiang Yin, Xuefeng Liu, Lei Yu, Hongping Wang

Author Affiliations +

Proceedings Volume 12589, International Conference on Optical Technology, Semiconductor Materials, and Devices (OTSMD 2022); 125890W (2023) https://doi.org/10.1117/12.2668535
Event: International Conference on Optical Technology, Semiconductor Materials, and Devices (OTSMD 2022), 2022, Longyan, China

Abstract

Conventional cable joint fault detection methods use covariance matrices to extract fault features with high sample transformation amplitudes, resulting in significant differences between the obtained Wigner-Hough transformation peaks and the actual ones. Therefore, a new cable joint fault detection method is required based on the extended time-frequency domain reflection method. Based on the energy transfer characteristics of the cable, a transmission line schematic is drawn to extract the fault characteristics. Then the fault frequency domain is divided by combining the extended time frequency domain reflection to achieve cable joint fault detection. The experimental results show that the peak values of Wigner-Hough transitions obtained by the designed cable joint fault detection method are less different from the actual ones, which proves that its fault detection effect is good, accurate, and has a certain application value.

Citation Download Citation

Jinhai Yang, Hongjiang Yin, Xuefeng Liu, Lei Yu, and Hongping Wang "The design of cable joint fault detection method based on augmented time-frequency domain reflection method", Proc. SPIE 12589, International Conference on Optical Technology, Semiconductor Materials, and Devices (OTSMD 2022), 125890W (14 February 2023); https://doi.org/10.1117/12.2668535

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