Fault section binary positioning method based on self-checking learning
A technology of fault section and location method, applied in the direction of neural learning method, fault location, short-circuit test, etc., can solve the problems of unknown operating status and low search efficiency, so as to improve robustness, obvious fault characteristics, and avoid misjudgment Effect
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[0031] In order to express the objectives, technical solutions and advantages of the present invention more clearly, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.
[0032] The similarity judgment of the present invention for the upstream and downstream transient zero-sequence currents of the fault point is based on figure 1 The schematic diagram of the structure of the Siamese neural network consists of two branch networks, the structure and weight parameters of the two sub-networks are shared, and the feature vector is finally output through a similarity measurement module:
[0033] X 1 and X 2 For the two time series to be compared, they are respectively input into two neural networks that share the weight W. original sequence X i and X j Obtain a new vector Net(w, X through the nonlinear mapping of Network i ) and Net(w,X j ), w is the network share parameter.
[0034] Suppose Net...
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