Inspec keywords: HVDC power convertors; power transmission faults; power transmission protection; fault diagnosis; power grids; voltage-source convertors; wavelet transforms; HVDC power transmission; power transmission lines

Other keywords: faults scenarios; directional travelling wave; two-terminal VSC-HVDC system; DC cable lines; travelling waves; internal faults; VSC-HVDC directional pilot protection; protection method; arrival time difference; backward fault; initial travelling wave head; PSCAD/EMTDC; forward fault; fault resistance; propagation time difference; external faults

Subjects: d.c. transmission; Power convertors and power supplies to apparatus; Power transmission lines and cables; Integral transforms; Power system protection