An Adaptive Sliding Mode Controller for High Power Factor Boost Rectifier in Continuous Conduction mode

This paper presents a new Adaptive Sliding Mode Control for high power factor boost rectifier operating in the continuous conduction mode. Through gain scheduling, the controller is designed to monitor the output loading condition, and adaptively changes its control parameters to give optimal dynamic performances corresponding to any loading variations. Simulations have been carried out to verify the idea. The results show faster transient response and reduced steady state error during over-loaded operation, and improved controller’s reliability during under loaded operation, under the adaptive controller. The general features are no input voltage sensing, and no use of multiplier. Control complexity is the same as that of standard current-mode controls. Simulation is done by using mathematical model of boost rectifier in MATLAB/SIMULINK environment. Index terms Modeling of Boost Rectifier, CCM, VSCS and SMC, Adaptive SMC

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