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1 results about "Recurrence plot" patented technology

In descriptive statistics and chaos theory, a recurrence plot (RP) is a plot showing, for each moment i in time, the times at which a phase space trajectory visits roughly the same area in the phase space as at time j. In other words, it is a graph of...

A method and system for identifying faults in high-frequency transformers

PendingCN122087584AGet fault detection resultsachieve precisionBiological modelsData setAlgorithm
This invention discloses a method and system for high-frequency transformer fault identification, belonging to the field of high-frequency transformer fault detection technology. The method comprises: acquiring a characteristic gas vector sequence of the high-frequency transformer and converting the characteristic gas vector sequence into an actual fault recurrence graph; generating an expanded dataset based on the actual fault recurrence graph, a pre-acquired random noise vector, and a preset initial depth convolutional generative adversarial network model; training a preset initial MobileNetV3 model based on the expanded dataset and the characteristic gas vector sequence and constructing a cross-entropy loss function, then updating the model with the goal of minimizing the cross-entropy loss function until a preset convergence condition is met, thus obtaining the MobileNetV3 model; inputting the fault recurrence graph to be tested into the MobileNetV3 model to obtain the fault detection result of the high-frequency transformer to be detected. Therefore, by implementing this invention, the low accuracy of high-frequency transformer fault identification and the insufficient ability to identify complex faults can be avoided, achieving high-precision and high-reliability identification of various types of high-frequency transformer faults.
Owner:ELECTRIC POWER RES INST OF GUANGDONG POWER GRID CO LTD