Inspec keywords: optimal control; HVDC power transmission; dynamic response; power transmission control; voltage control; predictive control; HVDC power convertors; PI control; electric current control; power conversion harmonics

Other keywords: model predictive control; large capacity energy conversion; internal loop current controller; dynamic response speed; PSCAD-EMTDC software platform; outer loop controller; low harmonic design; feedback correction; model prediction control; submodule voltage-balanced control strategy; low dynamic response; optimal voltage control; rolling optimisation; PI parameters; prediction model; modular multilevel converter; modular design; MMC-HVDC system simulation model

Subjects: Voltage control; Optimal control; d.c. transmission; Control of electric power systems; Current control; Power supply quality and harmonics