Online intelligent fault prediction method for power electronic circuit based on RS-CMAC (rough sets and cerebellar model articulation controller)
A technology of fault prediction and power electronics, applied in the direction of electronic circuit testing, etc., can solve problems such as large amount of calculation and amazing amount of calculation, and achieve the effect of improving efficiency and simplifying input data
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[0025] Below in conjunction with accompanying drawing, the technical scheme of invention is described in detail:
[0026] Such as figure 1 As shown, using the online intelligent fault prediction method of power electronic circuits based on RS-CMAC to predict as Figure 4 The buck circuit shown is faulty. Including the following steps:
[0027] Step 1, select the measurement node from the electronic circuit by the power to be measured, and monitor the voltage of the measurement node online (input voltage U i , output voltage U o ) signal, current (output current I o )Signal.
[0028] Step 2, using such as figure 2 The shown wavelet threshold denoising method, for the input voltage U mentioned in step 1 i , output voltage U o , output current I o Do wavelet threshold processing to get the fault feature sample U′ i , U' o , I' o .
[0029] Step 3, extract circuit performance parameters from the fault feature samples described in step 2, and obtain circuit performanc...
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