Fault location in VSC-HVDC section for grid integrated offshore wind farm by EMD

The fault location of VSC-HVDC section for grid integrated offshore wind farm is found by Empirical Mode Decomposition (EMD) using Hilbert transform (HT). The intrinsic mode function (IMF) of the fault generated in traveling wave signal retrieved at rectifier and inverter end is extracted by EMD. The HT is used to detect the magnitude and phase of each IMF. The HT of first IMF (IMF1-H) is evaluated for fault location objective and is further compared with wavelet transform (WT). The efficacy of the proposed fault location scheme is reflected in the simulation result.