Real-Time Investigation of an Adaptive Fuzzy Synergetic Controller for a DC-DC Buck Converter

K. Behih, K. Benmahammed, Z. Bouchama, M. N. Harmas

Abstract


In this paper, an adaptive fuzzy synergetic controller (AFSC) for a DC-DC converter is introduced. Two robust control techniques, synergetic control combined with fuzzy logic control, are utilized to produce a reliable DC-DC power supply. This is-realized by an indirect adaptive control of a DC-DC buck converter. To further enhance robustness, a nonlinear constraint, the equivalent of the sliding surface, is used to guarantee performance and stability for any operating condition. To ensure overall strength, closed-loop signals are bounded and the stability is guaranteed using the Lyapunov theory. Control parameters are optimized using a PSO algorithm to further enhance performances. The proposed controller (AFSC) is designed through a dSpace based experimental setup to provide robust DC-DC buck converter voltage control.


Keywords


adaptive; fuzzy control; synergetic control; DC–DC converter; PSO algorithm; dSpaceboard DS1104

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References


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