PO based adaptive sliding mode control for PV system under varying load condition

This work presents voltage-oriented MPPT approach that is in combination of classic P&O algorithm and an external voltage based adaptive sliding mode controller. The proposed algorithm has a novel sliding surface with derivative and integral terms, selected to reduce overshoot during sudden changes in solar irradiation and thus improve steady-state fluctuation. The proposed techniques also incorporate for changing the control parameters at each irradiance and temperature. In order to compare the outcome of solar MPPT the proposed technique compared with the most widely used MPPT techniques i.e P&O and Inc onMATLAB/Simulink simulations.