Cable partial discharge mode identification method based on depth sample enhancement
A partial discharge and pattern recognition technology, applied in the direction of testing dielectric strength, etc., can solve the problems of cable running failure, bringing errors, a large amount of training data, etc., to achieve the effect of avoiding errors, high prediction and recognition accuracy, and simple conversion process
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[0038] Example 1
[0039] Such as Figure 5 As shown, a partial discharge pattern identification method based on depth sample enhanced cable, including the following steps:
[0040] Step A: The partial discharge time domain signal of the collected cable insulation defect is subjected to the conversion of the image to obtain a two-dimensional image as an initial sample set;
[0041] When the signal is collected, the insulation defect is first boost until the defect breakdown is determined, and the breakdown voltage of the defect is determined, and then a certain number of discharge voltage values are selected in the defect discharge voltage range, maintain the discharge voltage, and collect the local discharge current of DC cable. The domain signal, the time domain signal signals to the conversion of the image, follows the steps of: randomly select the time domain signal within one period of time from the acquired time domain signal, constitute the signal indicator value correspo...
Example Embodiment
[0054] Example 2
[0055] Such as Figure 5 As shown, a partial discharge pattern identification method based on depth sample enhanced cable, including the following steps:
[0056] Step A: The partial discharge time domain signal of the collected cable insulation defect is subjected to the conversion of the image to obtain a two-dimensional image as an initial sample set;
[0057] When the signal is collected, the insulation defect is first boost until the defect breakdown is determined, and the breakdown voltage of the defect is determined, and then a certain number of discharge voltage values are selected in the defect discharge voltage range, maintain the discharge voltage, and collect the local discharge current of DC cable. The domain signal, the time domain signal signals to the conversion of the image, follows the steps of: randomly select the time domain signal within one period of time from the acquired time domain signal, constitute the signal indicator value correspo...
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