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Fractional-Order Terminal Sliding-Mode Control for Buck DC/DC Converter

Author

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  • Ningning Yang
  • Chaojun Wu
  • Rong Jia
  • Chongxin Liu

Abstract

In recent years, the combination of fractional calculus (FC) and sliding-mode control (SMC) has been gaining more and more interests due to fusion characteristics of SMC and FC. This paper presents the fractional-order terminal sliding-mode control (FTSMC) which has a new fractional-order sliding surface and assures the finite time convergence of the output voltage error to the equilibrium point during the load changes. TSMC is a special case of FTSMC. Through mathematical analysis, the system can reach the sliding-mode surface in finite time. The theoretical considerations have been verified by numerical simulations. And a Buck DC/DC converter application is presented and compared to illustrate the effectiveness of the proposed method. It is shown that the novel fractional terminal sliding-mode control exhibits considerable improvement in terms of a faster output voltage response during load changes.

Suggested Citation

  • Ningning Yang & Chaojun Wu & Rong Jia & Chongxin Liu, 2016. "Fractional-Order Terminal Sliding-Mode Control for Buck DC/DC Converter," Mathematical Problems in Engineering, Hindawi, vol. 2016, pages 1-7, July.
    • Handle: RePEc:hin:jnlmpe:6935081
    DOI: 10.1155/2016/6935081
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