Performance analysis of VSC-MMC Based Hybrid HVDC transmission system

Modern HVDC systems are having many advantages than HVAC systems. Two AC systems are connected using a new VSC-MMC based Hybrid HVDC system in this paper which gives many advantages than the conventional HVDC systems and LCC-VSC Hybrid systems. The proposed system gives the fast dynamic response by using different control strategies. The active and reactive power is controlled and the dc line voltage is maintained constant at inverter station. Under steady state and transient conditions the system performance is investigated by MATLAB simulations. The results show the feasibility of the hybrid system.