Transmission of electrical energy with High Voltage Direct Current (HVDC) has provided the electric power industry
with a dominant means to transmit huge quantity of electricity over very long distances. To investigate the performance, a welldeveloped current source converter based HVDC transmission system model is projected, in which the AC system represented as
damped LLR equivalent and is equipped with double tuned harmonic filter to mitigate the AC-DC harmonics and the DC system
is secured with rectifier current control, inverter current control, voltage control and inverter extinction angle control. The
MATLAB/Simulink based simulation results validate the step response of HVDC transmission system with various controllers.