Comparison and Analysis of the Influence of Different Data Transformation Methods on the Fault Identification of Flexible DC Transmission Lines by Convolutional Neural Network

Table 8

Comparison of classification recall of different algorithms after different combinations of two data transformation methods.

Different combinations	Classification algorithm
	BYS	CART	KNN	BAG	SVM	CNN
WT + EMD	88.52	94.34	93.72	96.68	93.50	98.60
VMD + WT	92.88	96.44	99.00	98.10	99.50	99.30
FFT + EMD	89.00	94.94	93.86	98.74	94.28	99.52
VMD + EMD	92.40	96.06	94.72	98.96	98.00	99.54
FFT + WT	88.76	94.64	98.80	98.60	95.30	99.76
VMD + FFT	93.84	96.16	99.10	98.86	99.42	99.96