Grid integration of large offshore wind energy and oil & gas installations using LCC HVDC transmission system

This paper investigates a case study of grid integration of large offshore wind farm and oil & gas installations using Line-Commutated-Converter (LCC) HVDC transmission system. Additionally, a STATCOM provides commutation voltage and reactive power to the system. The Wind farm supplies power to oil & gas installations through the offshore AC network, and to the onshore grid through the LCC-HVDC transmission link. After the derivation of system mathematical model, the operation principle and control strategies of proposed system are described and validated by a PSCAD/EMTDC based model. The simulation results demonstrated the robust system performance during both the normal operation and the various grid fault conditions.