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Elimination of Chattering by Control Strategy Based on the Multiphase Sliding Model Control for Efficient Power Conversion in a DC-DC Circuit

Author

Listed:
  • Woonki Na

    (Electrical and Computer Engineering, California State University, Fresno 93740, CA, USA)

  • Pengyuan Chen

    (Electrical and Computer Engineering, California State University, Fresno 93740, CA, USA)

  • Jonghoon Kim

    (Electrical Engineering, Chungnam National University, Daejeon 34134, Korea)

Abstract

In this paper, a multiphase sliding mode (MPSM) control method with a master–slave structure is proposed and analyzed in order to suppress ripples at input terminals or output terminals in DC/DC converter applications. With the proposed MPSM, the switching frequency of a multiphase DC/DC converter does not need to be operating such a high switching frequency as adopted in a conventional sliding mode control-based DC/DC converter. As a result, switching power losses could be reduced in this converter. Another advantage of this proposed method is that the master–slave multiphase slide control loop could figure out a proper phase shift between each switching phase of a DC/DC converter instead of precalculated phase shift. The proposed concepts are proven by the PSIM computer simulations and the feasibility of the proposed concepts is validated through the test experiments.

Suggested Citation

  • Woonki Na & Pengyuan Chen & Jonghoon Kim, 2017. "Elimination of Chattering by Control Strategy Based on the Multiphase Sliding Model Control for Efficient Power Conversion in a DC-DC Circuit," Energies, MDPI, vol. 10(9), pages 1-14, September.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:9:p:1389-:d:111790
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