Influence of 380 kV AC Underground Cables on the Dynamic Stability of Dutch Transmission System

This research as a part of the TenneT TSO cable research program attempts to find the influence of cable integration into the South-West 380 (SW380) project on the dynamic stability of Dutch transmission system. In fact, due to the cable capacitance which is much higher than capacitance of the OHL, high capacitive charging current is produced in the cable which may causes severe problems in the system. This paper deals with the dynamic response of the system related to this extra reactive power, especially the response of generators with respect to various disturbances like switching on/off the cable, fault current and etc. Furthermore, three different shunt compensation arrangements including line end, cable end and midline compensation are studied and compared from view point of dynamic…