Substation relay protection device service life prediction method
A technology of relay protection device and prediction method, which is applied in the direction of prediction, instrument, character and pattern recognition, etc., and can solve problems such as difficulty in obtaining high accuracy, failure of neural network, loss, etc.
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[0053] This embodiment provides a method for predicting the service life of a relay protection device in a substation. In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solution in the present invention will be clearly explained below in conjunction with the accompanying drawings. Describe it completely.
[0054] figure 1 Step 1 in describes the process and method of selecting and constructing evaluation indicators. According to the principles of universality, representativeness and compactness, collect and select effective data on the degree of deterioration of relay protection devices, namely: the number of incorrect actions, the number of failures, CPU temperature, operating voltage, and running time as sample data, and the obtained sample data To mark S={(x 1 ,y 1 ),(x 2 ,y 2 ),...,(x n ,y n )}. where x i Represents the sample attributes, namely: the number of incorrect actions, the nu...
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