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AC-DC converter with unity power factor and minimum harmonic content of line current: design considerations

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3 Author(s)
R. Blundell ; Dept. of Electr. Power & Control Eng., Malta Univ., Malta ; L. Kupka ; S. Spiteri

The paper describes some important design considerations in developing a variable three-phase AC-DC converter with unity power factor and the minimum harmonic content of the line current using boost converter topology. The design details of expanding a single-phase converter into a three-phase system are presented. This article also describes the major problems encountered in carrying out such essential modifications, together with their practical solution. A detailed circuit design is included. The prototype circuit was tested for both resistive and inductive loads. The results of operating the converter with a typical DC motor load are also presented

Published in:

IEE Proceedings - Electric Power Applications  (Volume:145 ,  Issue: 6 )