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The electrification of railway systems have always presented major challenges to the public electrical power systems. Electric locomotives are usually supplied by a single-phase AC catenary, causing unbalance and the appearance of negative sequence components (NSCs) in the three-phase electrical power grids. In addition, the traction power system of the electric locomotive is usually comprised by uncontrolled rectifiers to convert AC voltage to DC voltage, which produce high levels of currentdoi:10.5281/zenodo.1491308 fatcat:lnxklwqaxzdljnjpwtzlhsfswe