Field Commissioning Test of CNOOC Wenchang VSC-HVDC Transmission System

One of the advantages of VSC-HVDC power transmission is able to supply power to a passive network such as an offshore platform.The commissioning test of CNOOC Wenchang VSC-HVDC system,which is the first VSC-HVDC system in China,is introduced over the programs of system starting,power supply for isolated load,motor and generator connected into grid operation.The results show that the VSC-HVDC system is able to start smoothly,produce a stable AC voltage in inverter side,supply power for isolated resistor and motor load,and operate in a way to connect or disconnect itself with the generator on the platform.