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

<div>Waveforms of different denoising methods. (a) Line <i>l</i><sub><i>2</i></sub> zero-sequence current with noise. (b) Line <i>l</i><sub><i>2</i></sub> zero-sequence current without noise. (c) Wavelet threshold denoising method. (d) MCEEMDAN optimal denoising.</div>

Mathematical Problems in Engineering

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Figure 14

Figure 14: Faulty Line Selection Based on Modified CEEMDAN Optimal Denoising Smooth Model and Duffing Oscillator for Un-Effectively Grounded System 