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<p>This paper proposes a novel control strategy for output voltage regulation in DC-DC boost converters by proposing an innovative sliding mode (SM) controller. In the proposed control scheme, a non-singular fast terminal sliding mode (NFTSM) surface with a new reaching law (NRL) is designed to enhance convergence speed and output voltage accuracy, while decreasing chattering significantly compared to conventional sliding surfaces. First, a detailed comparison of the advantages and disadvantages of NFTSM sliding surface against the classical surfaces identified necessary corrections to any ill effects. Next, the limitations of conventional reaching law are studied, and their consequent ill effects on performance are pointed out. The NRL proposes a solution to these limits, leading to a higher performance dynamic behavior of the controller. The superiority of the method is corroborated by experiments showing that it is better than the controls described for voltage regulation. The results also show that there is good potential for the approach to be put into practice, thus constituting fairly heavy significance for the future of power electronics and energy management systems.</p>

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Development of a boost converter voltage controller based on a modified finite time sliding surface and a novel fast reaching law

  • 期刊论文

  • 发表日期：

    2026年2月9日

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  • Xiaoqing Liu,
  • Liumin Luo

摘要

This paper proposes a novel control strategy for output voltage regulation in DC-DC boost converters by proposing an innovative sliding mode (SM) controller. In the proposed control scheme, a non-singular fast terminal sliding mode (NFTSM) surface with a new reaching law (NRL) is designed to enhance convergence speed and output voltage accuracy, while decreasing chattering significantly compared to conventional sliding surfaces. First, a detailed comparison of the advantages and disadvantages of NFTSM sliding surface against the classical surfaces identified necessary corrections to any ill effects. Next, the limitations of conventional reaching law are studied, and their consequent ill effects on performance are pointed out. The NRL proposes a solution to these limits, leading to a higher performance dynamic behavior of the controller. The superiority of the method is corroborated by experiments showing that it is better than the controls described for voltage regulation. The results also show that there is good potential for the approach to be put into practice, thus constituting fairly heavy significance for the future of power electronics and energy management systems.