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 7

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

Different combinations	Classification algorithm
	BYS	CART	KNN	BAG	SVM	CNN
WT + EMD	85.34	94.64	93.57	96.96	93.78	98.60
VMD + WT	93.13	96.56	99.01	98.14	99.50	99.30
FFT + EMD	89.10	95.06	93.90	98.75	94.57	99.54
VMD + EMD	92.56	96.18	94.78	98.97	98.07	99.60
FFT + WT	89.75	94.91	98.81	98.17	95.60	99.76
VMD + FFT	94.23	96.28	99.10	98.69	99.40	99.96