Two-Stage Fault Diagnosis Method Based on the Extension Theory for PV Power Systems

Table 4

The results of the fault diagnosis by day in different ways.

Test method	Learning times	Learning accuracy (%)	Test accuracy (%)
The proposed method	no	no	100%
K-means clustering method	no	69.17%	62.5%
Multilayer neural network I (5-8-8)	1000	85.83%	83.33%
Multilayer neural network II (5-10-8)	1000	87.5%	86.67%
Multilayer neural network III (5-12-8)	1000	93.33%	92.5%