Convolutional Neural Network for Voltage Sag Source Azimuth Recognition in Electrical Internet of Things

Table 2

Classification indicator.

Classification algorithm	Classification feature	Accuracy	Kappa
CNN	Characteristic matrix	99.12%	99.06%
KNN	Characteristic matrix	97.06%	96.88%
	Disturbance power	43.53%	40.00%
	Equivalent impedance	54.41%	51.56%
	System slope	51.76%	48.75%
	Real part of current	57.94%	55.31%
EL	Characteristic matrix	87.94%	87.19%
	Disturbance power	40.29%	36.56%
	Equivalent impedance	57.06%	54.38%
	System slope	41.18%	37.50%
	Real part of current	32.94%	28.75%