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This paper presents a modified design of a sliding mode controller based on fuzzy logic for a dc-dc boost converter. Here a proportional - integral (PI)-type current mode control is employed and a sliding mode controller is designed utilizing fuzzy algorithm. Sliding mode controller ensures robustness against all variations and fuzzy logic helps to reduce chattering phenomenon introduced by sliding...
A novel current assisted Hinfin controller for boost converter is presented in this paper. The proposed controller combines the Hinfin robust stabilization technique and classical loop-shaping. The current loop of the boost converter is closed with constant gain and then, the Hinfin controller is estimated and applied to the converter, closing the voltage loop. The derived controller has been compared...
In this paper, a comparative analysis of two nonlinear control schemes proposed for a single ended primary inductance converter (SEPIC) power factor corrector (PFC) is presented. The SEPIC converter, compared to conventional buck or boost ones, allows a low current ripple at the input for a relatively low level of the DC-bus voltage. Consequently, the high frequency filter needed at the AC-side of...
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