Several key factors determine the selection between High Voltage Alternating Current (HVAC) and High Voltage Direct Current (HVDC) transmission systems for connecting an offshore wind farm to the onshore grid. The most critical factor is the transmission distance. For relatively short distances (typically less than 80-100 km), HVAC is generally the more cost-effective option. HVAC technology is well-established, and the equipment is readily available. However, for longer distances, HVDC becomes more advantageous. This is because HVAC cables experience significant capacitive charging currents, which increase with distance. These charging currents reduce the cable's capacity to transmit active power and can lead to ....
Log in to view the answer
