Adaptive Fast Integral Terminal Sliding Mode Control Strategy Based on Four-Switch Buck–Boost Converters

Borui Ma, Jiye Jiao () and Zilong Ye
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Borui Ma: College of Electronic Engineering, Xi’an University of Posts and Telecommunications, Xi’an 710121, China
Jiye Jiao: College of Electronic Engineering, Xi’an University of Posts and Telecommunications, Xi’an 710121, China
Zilong Ye: College of Computer Science, Xi’an University of Posts and Telecommunications, Xi’an 710121, China

Energies, 2024, vol. 17, issue 15, 1-21

Abstract: With the rapid development of electronic power systems, DC-DC converters are widely used, including the Four-Switch Buck–Boost (FSBB) converter, which has a unique advantage in scenarios with a wide range of voltage inputs. To improve the response speed and anti-interference capability of the FSBB converter, this paper proposes an adaptive global fast integral terminal sliding mode control method. Through an in-depth analysis of the fundamental characteristics of the FSBB converter, this study employed a global fast integral terminal sliding mode controller combined with an adaptive algorithm to significantly improve the dynamic performance and robustness of the FSBB converter. The simulation and experimental results show that the proposed method could track the reference voltage quickly and accurately in different modes, exhibiting excellent system robustness compared to conventional sliding mode control, terminal sliding mode control, and PID control methods.

Keywords: Four-Switch Buck–Boost converters; sliding mode control; adaptive algorithm; robustness (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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