Partial discharge pattern recognition method based on mixed neural network algorithm
A hybrid neural network and partial discharge technology, which is applied in the direction of measuring electricity, measuring electrical variables, and testing dielectric strength, etc., can solve the problems of sensitive initial weight and threshold selection, easy to fall into local minimum, slow algorithm convergence speed, etc. , to achieve high recognition rate, solve the initial weight sensitivity and easy local convergence, and improve the effect of convergence speed
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[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.
[0027] (1) Collect discharge signals of various typical discharge models in transformer oil
[0028] Construct 5 typical partial discharge models, including internal void type discharge model, creeping surface type discharge, floating potential body type discharge, oil-bubble type discharge, and oil-barrier type discharge. Each discharge model has more than 5 samples. These samples The material and structure are exactly the same, but there are certain differences in size and other aspects. The discharge capacity, discharge voltage, discharge time, discharge phase and discharge period of the discharge are measured by the partial discharge measurement system. F...
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