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This paper presents a design method for passive filters used to compensate power factor and current harmonics generated by high power cycloconverter drives. The paper includes the analysis of different passive filter topologies effectiveness (band-pass, high-pass and C type), a procedure to calculate filter parameters, tuning frequency selection, and reactive power distribution. The passive filters are designed to compensate high power grinding mill drives energized from cycloconverters. Simulated results based on a real grinding mill plant prove the effectiveness of the proposed method.

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