Representative modelling of very long HVDC cables

A representative frequency dependent model (FDM) of an HVDC cable is important in ensuring systems are designed harmoniously. the proposed and very long, 4200 km, AAPowerLink cables implemented PSCAD/EMTDC. The suitability approximations required for efficient simulation evaluated according to anticipated specifications. In practice, a submarine this length has between 40 80 field joints (FJ), which can be onerous individually express computationally expensive model. Frequency domain analysis shows minimum 8 FJs sufficient represent behaviour core voltage. sensitivity FDM parameters operating conditions assessed. applied establishing single ended fault location techniques. For km these techniques determine within 200 (≈5%). Additional methods explored refine estimates.