Unidirectional Series Interline DC/DC Current Flow Controller for Meshed HVDC grids

Meshed High Voltage Direct Current (HVDC) grids may require additional devices such as Current Flow Controllers (CFC) or Power Flow Controllers (PFC) that can control the DC currents in order to avoid overloads and bottlenecks. This paper studies the unidirectional series interline DC/DC CFC topology. Different control modes are considered for the aforementioned converter and it is validated through simulation results and a prototype is built and tested in an experimental platform in the laboratory.