Patent ID: 11874317
Assignee: SCHNEIDER ELECTRIC INDUSTRIES SAS
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 8:
9. A ground fault directivity detection device, comprising:
a sampling module, configured to sample at least a part of a current signal to obtain a numerical matrix;
an input module, configured to detect whether a maximum value in the numerical matrix is greater than a preset enabling threshold, provide the numerical matrix as an input to a ground fault directionality detection neural network to predict whether the current signal is an upstream fault current signal or a downstream fault current signal in a case that the maximum value in the numerical matrix is greater than or equal to the preset enabling threshold, and detect whether a maximum value in a next numerical matrix is greater than the preset enabling threshold in a case that the maximum value in the numerical matrix is smaller than the preset enabling threshold; and
a classification module, configured with the ground fault directionality detection neural network, wherein the ground fault directionality detection neural network calculates a label vector corresponding to the input in response to the input provided to the ground fault directionality detection neural network, wherein the label vector indicates whether the current signal is an upstream fault current signal or a downstream fault current signal, and the ground fault directionality detection neural network also receives a ground fault confirmation signal, and outputs the label vector when the ground fault confirmation signal indicates that the current signal is a ground fault current signal.