FPL potentzia-bihurgailuen analisia akats elektrikoen zehar: Analysis of FPL power converters under grid faults

Abstract

Distribution lines are dealing with several challenges such as the increase in power consumption, the integration of renewable resources, etc. which are driving them to more intelligent grids or smart grids. In these smart grids the use of power electronics is essential for adding new required functionalities such as the mitigation of electrical faults. In this sense, mitigation of electrical faults carries out the generation of unbalanced voltages which implies the use of specific power converter topologies. In the case of MV lines, Flexible Power Links (FPL) are a suitable option due to the advantages they report such as bidirectionally of power flow and the possibility of generating unbalanced voltages. This paper analyzes the main topologies used in FPL power converters and studies their behavior when dealing with single-phase faults mitigation. Simulation results are carried out in order to obtain the benefits and disadvantages of each analyzed topology.