Robust maximum power point tracking method for a stand-alone PV power system

This paper proposes a control strategy of a maximum power point of a stand-alone PV system using the sliding mode control technique. This control technique has proved to be very robust with respect to system parameter variations and external disturbances, and provide a simple control law design. The structure selected of the control law is a configuration using the principle of the equivalent and non linear control. The efficiency of the proposed control approach is verified and compared with the traditional P&O technique, through simulations, have shown good performances of the system.