Case study of incorrectly used current harmonics mitigation system
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NTU "KhPI"
Abstract
The paper describe a real case of a failed power transformer due to incorrectly applied active current harmonics mitigation system (active filter) for VFD drives. The used mitigation system injected high frequency current spectrum into the power system what led to overheating in the system components mainly due to skin effect. The possibility of such a problem should always be taken into account when choosing a specific scheme of the active filter.
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Volkov I. V. Case study of incorrectly used current harmonics mitigation system / I. V. Volkov, S. V. Podolnyi // Вестник Национального технического университета "Харьковский политехнический институт" = Bulletin of National Technical University "Kharkiv Polytechnic Institute" : [cб. науч. тр.]. – Харьков, 2017. – Вып. 27 (1249) : Проблемы автоматизированного электропривода. Теория и практика. Силовая электроника и энергоэффективность = Problems of Automated Electrodrivs. Theory and Practice. Power Electronics and Energy Efficiency : темат. вып. – С. 197-200.