The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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Input Current Ripple Reduction Algorithm for Interleaved DC-DC Converter

다상 DC-DC 컨버터의 입력 전류 리플 저감 제어 알고리즘

  • Joo, Dong-Myoung (College of Information and Communication Eng., Sungkyunkwan Univ.) ;
  • Kim, Dong-Hee (College of Information and Communication Eng., Sungkyunkwan Univ.) ;
  • Lee, Byoung-Kuk (College of Information and Communication Eng., Sungkyunkwan Univ.)
  • Received : 2013.10.14
  • Accepted : 2014.02.14
  • Published : 2014.06.20
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Abstract

Input current ripple and harmonic components of the power device are main causes of electromagnetic interference (EMI). Although the discontinuous conduction mode (DCM) operation can reduce harmonic components of the power device by reducing reverse recovery current of diode and turn-off voltage spikes of the switch, input current ripple increases due to high peak to peak inductor current. Therefore, in this paper, frequency control algorithm is proposed to reduce the input current ripple of DCM operated interleaved boost converter. In the proposed algorithm, duty ratio is fixed either 0.33 or 0.67 to minimize the input current ripple and the switching frequency is controlled according to operating conditions. 600 W 3-phase interleaved boost converter prototype system is built to verify proposed algorithm.

Keywords

References

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  1. Bi-Directional Interleaved Current-Fed Resonant Converter with Reduced Sized of Output Filter for FCEV vol.19, pp.6, 2014, https://doi.org/10.6113/TKPE.2014.19.6.503