Fuzzy - sliding mode controller for sepic in a solar energy system

The paper attempts to design a hybrid control strategy with a view to extract a regulated voltage from a Single Ended Primary Inductance Converter (SEPIC) over a range of operating loads. The converter energized from a solar source operates in the boost mode to suit the realistic needs of the practical utilities. The exercise endeavors to evolve a composite fuzzy - sliding mode (FSM) mechanism through which it surges to off- set the elemental non- linearities and parametric variations in the converter system and reach to the desired level of output. The procedure inscribes adequate artifacts to reject servo and regulatory disturbances and enable the SEPIC to perceive as an astute interface to the grid. The simulated response validated using experimental results exhibit the merits of the control methodology and suitability of the scheme for use in real world power systems.