The Transactions of the Korean Institute of Electrical Engineers P (전기학회논문지P)

The Korean Institute of Electrical Engineers (대한전기학회)
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Power Factor Correction of Single-phase Boost Converter for Low-cost Type UPS Configuration

저 가격형 UPS를 구성하기 위한 단상 부스트 컨버터의 고 역률 제어

  • 박종찬 (오산대학교 전기시스템제어과) ;
  • 손진근 (가천대학교, 전기공학과)
  • Received : 2013.06.28
  • Accepted : 2013.08.21
  • Published : 2013.09.01
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Abstract

A novel AC to DC PWM converters with unity input power factor are proposed to overcome the above shortcoming. The main function of these converters is to shape the input line current to force it exactly in phase with the input AC voltage. Therefore, the input power factor can be improved to near unity and the input current harmonics can be eliminated. In this paper, half-bridge converter with two active switches and two diodes are utilized for low-cost type UPS configuration. By having only two semiconductors in the current path at any time, losses can be reduced over the conventional boost topology. Also, this converter provides controllable dc-link voltage, high power factor, and low cost type converter by simple power circuits. Simulation results show that the proposed half-bridge converter/inverter control technique can be applied to single-phase low-cost type UPS systems successfully.

Keywords

References

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