V. CONCLUSIONS
In this paper, the suitability of cable models such as Berg-
erons, frequency dependent and simple -models for transient
study have been investigated and discussed. Simulation results
comparing the performance of different cables models are
presented. It has been identified that the frequency dependent
model is the most accurate model. A reactive power compensa-
tion study for two different cable lengths 50 km and 150 km is
performed. Based on the specifications of the subsea cable and
the reactive power compensation study, the breakeven distance
(the distance above which HVDC transmission is preferred
over HVAC transmission) for the subsea context has been
identified.