2022
DOI: 10.1109/access.2022.3165815
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Hybrid Entropy in the Time-Frequency Domain for Grading Electrode Sediment Identification

Abstract: The traditional manual periodic screening method of grading electrode sediments is prone to cause the equipment failure of high voltage direct current converter valves. Therefore, we propose to use ultrasonic time-domain reflection method to detect the sediments. However, the ultrasonic echo signals are characterized by nonlinearity and nonsmoothness, which makes it very difficult to extract effective features for sediment detection. To address this issue, we propose an intelligent detection method based on mu… Show more

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References 43 publications
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