Inspec keywords: fault currents; power transmission faults; DC power transmission; least squares approximations; power convertors; regression analysis; power system simulation; power engineering computing; fault location; power transmission protection; Hilbert transforms; support vector machines

Other keywords: direct current system; dc transmission line protection; fault distance; fault location; power transmission fields; multiterminal modular-multilevel-converter-based high-voltage; least-squares-based-support vector regression scheme; MMC–MTDC transmission lines; fault current; dc fault; squares-support vector regression; fault features; multiterminal MMC–HVDC system; MMC–MTDC system

Subjects: Interpolation and function approximation (numerical analysis); Power engineering computing; Integral transforms in numerical analysis; Interpolation and function approximation (numerical analysis); Power convertors and power supplies to apparatus; Other topics in statistics; Knowledge engineering techniques; Power system protection; Integral transforms in numerical analysis; d.c. transmission; Other topics in statistics