A 28-pulse AC–DC converter for line current harmonic reduction

Singh, B. ; Gairola, S. (2008) A 28-pulse AC–DC converter for line current harmonic reduction IET Power Electronics, 1 (2). pp. 287-295. ISSN 1755-4535

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Official URL: http://ieeexplore.ieee.org/document/4539515/

Related URL: http://dx.doi.org/10.1049/iet-pel:20070239

Abstract

A novel transformer for 28-pulse AC-DC converter configuration is designed, modelled and simulated to feed isolated DC varying loads. The proposed transformer is suitable for large current rating rectifiers such as electric-aircraft power supply, electro-winning, electro-chemical processes, induction heating, plasma torches and so on, where isolation is required mainly for stepping down the supply voltage. It consists of two paralleled 14-pulse AC-DC converters involving seven-phase shifted AC fed diode bridges. It improves power quality at AC mains and it meets power quality IEEE-519 standards requirements at varying loads.

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