ANFIS based Proportional Integral Non-Singular Terminal Sliding Mode MPPT Control for PV system

In this research, a cascaded adaptive neuro-fuzzy inference system (ANFIS) with nonsingular terminal sliding mode is developed for drawing out maximum power from 250 W photovoltaic array. Aiming to extract the maximum energy, a boost converter is utilized as voltage regulator between PV system and load. A cascaded voltage/current regulator based proportional integral(PI) and nonsingular terminal sliding mode control(NTSMC) forms the duty cylce of boost chopper. The proposed control algorithm is tested under normal condition as well as under sudden change of atmospheric variation. Furthermore, the results were compared with ANFIS-PI. The proposed controller has improved the robustness, steady state, and has suppressed the chattering problem.