Superconducting cable fault detection method and system
A superconducting cable, fault detection technology, applied in the direction of detecting faults by conductor type, fault location, measuring electricity, etc.
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[0127] In the embodiment of the present invention, taking a detection of a 10m-long superconducting cable as an example, the fault point is set at a position of 4.7m. Specifically, the steps for determining the fault location include:
[0128] (1) Generation and injection of incident waveforms
[0129] Among them, the signal generator is used to output the coded pulse chirp wave, and the parameters are respectively w 0 =2π*10 8 , β=2*10 16 , α=2*10 16 , the output waveform is as Figure 6 shown.
[0130] (2) Extraction of reflected waveform
[0131] After the incident waveform is injected into the superconducting cable, the incident reflected wave is obtained. To extract the reflected waveform, first remove the incident wave and the DC component in the reflected signal, and shift the incident signal so that the first peaks of the two waveforms are aligned, and the waveform is obtained as Figure 8 As shown, the larger amplitude is the incident wave, and the smaller amp...
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