Dynamic Performance of an HVDC Link.

This paper presents the results of a simulation study on a 12 pulse HVDC (High
Voltage Direct Current) using a system in Matlab/Simulink. The object of the
study is to investigate the steady state and dynamic performance of the system.
First we examine response of current regulator after change in current reference in
order to see the behavior of the controllers in controlling the desired current. Next,
we present the digital simulation of a test system and show the response to a DC
fault in the line and the AC fault at inverter side. The results are evaluated to
enhance the recovery of the system from the disturbances for a full range of typical
disturbances. The presented approach benefits from Simulink’s advantages in
modeling and simulating dynamical systems.

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