Journal
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Volume 64, Issue 2, Pages 948-955Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2016.2618341
Keywords
Harmonic elimination; multipulse rectifier; phase-shifting transformer; round shaped
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Funding
- National Natural Science Foundation of China [51177171, 51507180]
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In this paper, a novel rectifier transformer that has a round-shaped structure is investigated. The transformer can convert three-phase power into 12-phase, which supplies to a rectifier composed by four bridges for producing dc voltage with 24-pulse. With such transformers, rectifier performance can be improved in both input and output waveforms. The principle of harmonics elimination is explained and some critical problems may be encountered in design are discussed. The experiments on the prototype are carried out for performance assessments regarding characteristics, such as ripple factor, total harmonic distortion, efficiency, etc. The results demonstrated the effectiveness of the novel transformer in harmonics mitigation.
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