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A New Unity Power Factor Rectifier System using an Active Waveshaping Technique  

Choi, Se-Wan (Dept. of Control and Instrumentation Eng., Seoul National University of Technology)
Bae, Young-Sang (Dept. of Control and Instrumentation Eng., Seoul National University of Technology)
Publication Information
Journal of Power Electronics / v.9, no.2, 2009 , pp. 173-179 More about this Journal
Abstract
This paper proposes a new three-phase diode rectifier system with a sinusoidal input current at unity power factor and a regulated and isolated output voltage at low level. The inherent natural wave-shaping capability of the reduced kVA polyphase transformer together with an active current wave-shaping technique results in a significant reduction of input and output filter requirements associated with switching ripple and EMI. The operation principles are described along with a design example and a comparative evaluation. Experimental results on a 1.5kW prototype are provided to validate the proposed concept.
Keywords
Permanent magnet synchronous motor; Parameter measurement; P-Q circle diagram; Iron loss diode rectifier; Waveshaping; Three-phase power factor correction; Polyphase transformer;
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Times Cited By Web Of Science : 1  (Related Records In Web of Science)
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