To enable the integration of large-scale renewable energy, hybrid HVDC technology, which combines technical advantages LCC-HVDC and VSC-HVDC, is being gradually deployed in power grid nowadays. The operation Wu-dong-de Hybrid DC Project Jian-su cascaded MTDC has proved its advantages. However, for simultaneous application different converter station technologies system, control strategies becom...

VSC-HVDC systems are widely used to integrate wind farms, asynchronous generations and networks operating at different frequencies. The Multi-terminal (MT) multi-fed (MF) HVDC’s the system mainly constituted of VSC’s, renewable sources transmitting bulk power conventional AC grids. A sudden change in steady state even adjacent may create severe disturbances operation such HVDC systems. or DC di...

A single-end based fault location method is proposed for VSC (Voltage Sourced Converter) HVDC (High Voltage Direct Current) transmission systems. With the method, there no need communication system to collect data from different locations and checking synchronization avoided. The derived relationship between aerial ground voltage components along DC system. Bergeron model equations are used cal...