Motor fault diagnosis method and system
A fault diagnosis and fault technology, applied in computer parts, instruments, character and pattern recognition, etc., can solve problems such as abnormal motor operation, deterioration, industrial production loss, etc.
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[0100] Example 1
[0101] See figure 1 , This embodiment provides a method for diagnosing motor faults, including the following steps:
[0102] S1: Select the normal operation data of the motor to be tested as the normal training data set, calculate the first detection statistic according to the normal training data set, and calculate the detection threshold according to the first detection statistic;
[0103] S2: Select different types of fault data from the historical fault operation data as the fault training data set, calculate the second detection statistic according to the fault training data set, and use the kernel density estimation method to calculate the failure probability density function of the second detection statistic, and Construct the probability density function set of all types of failure samples;
[0104] S3: Select the real-time running data of the motor to be tested as the test data set, calculate the third detection statistic according to the test data set, an...
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[0168] Example 2
[0169] Corresponding to the above method embodiments, this embodiment provides a motor fault diagnosis system, including a memory, a processor, and a computer program stored in the memory and running on the processor. The processor implements the above method when the computer program is executed. A step of.
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