Method and device for fault detection
AssigneeSilergy Semiconductor Technology (Hangzhou) LTD
InventorNathan Hackett
Life of this patent
Estimating the term…
Abstract
A method of performing fault detection can include: performing a sampling operation to obtain a first voltage signal and a first current signal from a circuit path; performing a phase adjustment on the first voltage signal and the first current signal to generate a second voltage signal and a second current signal; transmitting the second voltage signal and the second current signal to a fault detection network that is pre-trained to accordingly process and generate a fault detection result; and operably disconnecting the circuit path when a fault is detected based on the fault detection result.
Claims15
A method of performing fault detection, the method comprising:
- a) performing a sampling operation to obtain a first voltage signal and a first current signal from a circuit path;
- b) performing a phase adjustment on the first voltage signal and the first current signal to generate a second voltage signal and a second current signal, wherein the performing the phase adjustment comprises determining a fundamental frequency of the first voltage signal, obtaining phase information of the first voltage signal corresponding to the fundamental frequency, and adjusting phases of the first voltage signal and the first current signal according to the phase information;
- c) transmitting the second voltage signal and the second current signal to a fault detection network that is pre-trained to accordingly process and generate a fault detection result;
- and
- d) operably disconnecting the circuit path when a fault is detected based on the fault detection result.
A method of performing fault detection,
- the method comprising:
- a) performing a sampling operation to obtain a first voltage signal and a first current signal from a circuit path;
- b) performing a phase adjustment on the first voltage signal and the first current signal to generate a second voltage signal and a second current signal;
- c) transmitting the second voltage signal and the second current signal to a fault detection network that is pre-trained to accordingly process and generate a fault detection result;
- d) operably disconnecting the circuit path when a fault is detected based on the fault detection result;
- e) wherein the transmitting the second voltage signal and the second current signal to the fault detection network pre-trained to accordingly calculate and render the fault detection result comprises, after the phase adjustment, transmitting the second voltage signal, and the second current signal to the fault detection network;
- and
- f) wherein spectrum information of the second voltage signal and the second current signal are processed to obtain the fault detection result, and the spectrum information comprises phase information and amplitude information.
A fault detection device, comprising:
- a) a sampling module configured to sample to obtain a first voltage signal and a first current signal from a circuit path;
- b) a phase adjustment module configured to performing a phase adjustment on the first voltage signal and the first current signal to generate a second voltage signal and a second current signal;
- c) a processor configured to transmit the second voltage signal and the second current signal to a fault detection network pre-trained to accordingly process and generate a fault detection result, and to operably control a connectivity of the circuit path according to the fault detection result;
- and
- d) a frequency normalization module coupled to a first DFT unit and a second DFT unit, and being operably arranged to perform a spectrogram scaling on the second voltage signal and the second current signal through interpolation filtering or spline interpolation to normalize frequencies of the second voltage signal and the second current signal.
Dependencies are inferred from the claim text.