Faulty Line Selection Based on Modified CEEMDAN Optimal Denoising Smooth Model and Duffing Oscillator for Un-Effectively Grounded System

Table 1

EMD decomposition IMF correlation.

	x1	x2	x3
IMF1	0.7449	0.0051	0.0282
IMF2	0.6273	0.1157	0.0416
IMF3	0.0013	0.7748	0.0105
IMF4	0.0003	0.0034	−0.0055
IMF5	−0.0006	0.0112	0.0356
IMF6	0.0003	−0.0124	0.0261
RS7	0.0010	−0.0143	0.0087