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Sliding and fuzzy control of a boost converter using an 8-bit microcontroller

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5 Author(s)
Vidal-Idiarte, E. ; DEEEA-Univ. Rovira i Virgili, Tarragona, Spain ; Martinez-Salamero, L. ; Guinjoan, F. ; Calvente, J.
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A two-loop control method for a boost converter, which combines fuzzy and sliding-mode methodologies, is presented. An inner loop controls the inductor current through a sliding surface whose reference signal is given by a slower outer loop. This outer loop employs a fuzzy logic mechanism to implement a PI controller that guarantees output voltage regulation and results in an excellent transient response during start-up. The controller implementation requires standard analogue devices for the inner loop and an inexpensive 8-bit microcontroller for the outer loop. Experimental results are in good agreement with the theoretical predictions and show a better dynamic performance than those obtained by means of classical analogue two-loop techniques.

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Electric Power Applications, IEE Proceedings -  (Volume:151 ,  Issue: 1 )