Cable insulation condition monitoring method and system based on QGA-VMD
A cable insulation and monitoring system technology, applied in the direction of gene model, genetic rule, test dielectric strength, etc., can solve problems such as limitation, spectrum leakage, error, etc., to achieve the effect of improving efficiency, ensuring safe operation, and reducing maintenance costs
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[0048] like Figure 1 to Figure 4 As shown, the present invention relates to a high-precision QGA-VMD-based cable insulation condition monitoring method and system, which can be applied to high voltage field; waveform analysis, filter processing field; on-line insulation monitoring field and insulation fault diagnosis field.
[0049] like figure 1 Shown is the flow chart of the present invention based on the QGA-VMD fully mechanized mining cable insulation condition monitoring method, mainly comprises the following steps:
[0050] S1: Use a sampling circuit composed of voltage transformers and current transformers to sample the original voltage and original current, and perform preliminary filtering processing;
[0051] S2: Utilize the quantum genetic algorithm (QGA) to optimize the penalty factor α and the number of decomposition modes K in the variational mode decomposition algorithm (VMD), and obtain the optimized algorithm QGA-VMD; specifically include the following steps: ...
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