Practical Implementation of Sliding Mode Control for Boost Converter

The sliding mode control (SMC) represents a powerful tool to enhance performances of power converters. This control technique has a less circuit complexity unlike other standard current-mode controllers. It also provides extreme robustness and fast response against supply, load and circuit parameter variations, even for higher-order converters. Limited numbers of research publications are available with hardware implementation of SMC in switching power converters. Most of the people have discussed this control using a buck converter having a perfect variable structure. This paper presents a simulation study of SMC applied to a boost converter (non minimum phase system) using a new model developed by the authors. MATLAB/SIMULINK is used for simulation studies. Simulation results are practically verified by implementing controller on a prototype board