A STD based sliding mode control design for DC-DC buck converter

Yigeng Huangfu, Shengrong Zhuo, Xiaofei Wang, Kangbo Jiang

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

The conventional sliding mode control design for DC-DC buck converter needs to measure the converter output voltage and the capacitor current simultaneously. In contrast to this, the paper proposes an innovative super-twisting differentiator (STD) based sliding mode control for DC-DC buck converter. The STD based sliding mode control only needs to measure the converter output voltage. There is no need to measure the capacitor current, such that the current sensor can be removed from the control loop, thus the control system is simplified. It has been demonstrated by simulation results that when compared with conventional sliding mode control, the proposed STD sliding mode control can achieve smaller steady state voltage error and at the same time, the strong robustness against the input voltage perturbation and load resistance disturbance can also be preserved.

Original languageEnglish
Pages (from-to)663-668
Number of pages6
JournalXibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University
Volume34
Issue number4
StatePublished - 1 Aug 2016

Keywords

  • DC-DC converter
  • MATLAB
  • Sliding mode differentiator
  • Super-twisting controller

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