Voltage sag sensitive equipment fault level evaluation method based on data mining
A technology for sensitive equipment and voltage sag, which is applied in the fields of electrical digital data processing, measuring current/voltage, digital data information retrieval, etc., can solve the problem of insufficient data utilization, and achieve the effect of high precision and reasonable process structure
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[0075] like Figure 1 to Figure 7 As shown, the data mining-based method for evaluating the fault level of voltage sag sensitive equipment in the present invention includes the following steps:
[0076] Step A: From the long-term monitoring data, select the appropriate characteristic attribute of voltage sag, and calculate the failure rate of sensitive equipment according to the monitoring data, determine the failure level of sensitive equipment according to the failure rate of sensitive equipment, and convert the monitoring data into A database consisting of voltage sag characteristic attributes and sensitive equipment failure levels;
[0077] Step B: Mining the association rules between the characteristic attributes of voltage sag and the fault level of sensitive equipment through the multidimensional matrix simplification method, and setting two sets of support and confidence limits;
[0078] Step C: Using the improved gray target theory, match the voltage sag characterist...
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