LMI Robust Control Design for SIDO Boost Converter Based on SFG Modelling Method
Subject Areas : electrical and computer engineeringM. Abbasi 1 , Mohammad Reza Alizadeh Pahlavani 2 , Ahmad Afifi 3
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2 - دانشگاه صنعتی مالک اشتر
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Keywords: SIDO convertersignal flow graph modelrobust controlLMI,
Abstract :
A robust control design process based on a linear Matrix Inequalities (LMI) for a Single Inductor Multi Output (SIMO) boost converter has been presented in this paper. Considering complicated multi-stages operation of SIDO converter, Signal Flow Graph (SFG) modelling was used to predict all behavior of the converter. Using the SFG model, nonlinearities and uncertainties was modelled as a convex polytope for LMI design constraints. This method guarantees a certain perturbation rejection level and a region of pole location. The derived parameters from LMI were applied on state-feedback coefficients in Matlab/Simulink to show the validity of the presented LMI method. Finally, the obtained results have been compared with a conventional PI controller.
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