Inspec keywords: HVDC power transmission; power transmission protection; lightning protection; power transmission lines; power grids; wavelet transforms; power transmission faults

Other keywords: flexible DC transmission; multiterminal DC grid; external faults; voltage pole-wave protection scheme; fault line; high-speed nonunit protection criterion; internal faults; fast protection; DC lines; multiterminal HVDC; selective operation; Zhangbei MTDC grid; voltage response characteristics; flexible DC transmission lines

Subjects: Integral transforms; Power system protection; d.c. transmission