Converter input detection signal filtering

摘要

A method for transferring electric power from a primary side (5) to a secondary side (6) of a converter (11) and/or vice versa, in particular for the purpose of delivering electric power to a high power application such as to a driving motor of a railroad vehicle. The converter (11) comprises at least one electric or electronic switch for repeatedly interrupting and closing an electric connection thereby operating the converter (11). A detection signal representing the operating state of the input is filtered by performing a filtering process (unit 50). The filtered detection signal is used to control (units 4, 21) the operation of the converter (11). The filtering process is at least partly performed by a comb filter (in unit 50).