Research on permanent single line-to-ground fault identification of AC transmission lines based on discrete wavelet transform
In order to achieve accurate identification of permanent single line-to-ground faults in AC transmission lines,discrete wavelet transform is introduced to conduct research on permanent single line-to-ground fault identification in AC transmission lines.Using discrete wavelet transform to denoise the AC transmission line signals,allowing for discrimination and calculation of single-phase permanent faults.Setting a threshold to complete the identification of permanent single-phase faults in AC transmis-sion lines.Comparative experiments have shown that the new identification method can obtain identification results that are closer to the actual situation,with extremely high identification accuracy,and is worthy of wide application and promotion.
single line-to-ground faultdiscrete wavelet transformtransmission line
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