Simulation of Type 1Fuzzy Logic MPPT Controller for PV System

Abstract: Solar supported power system is widely used to meet the reliable power supply to the load. Efficient power can be extracted from solar photovoltaic array using different Maximum power point tracking techniques. This paper presents the implementation of Type 1 Fuzzy Logic MPPT controller. DC-DC converter is placed between PV panel and load to get the required voltage at a load side. Linguistic rule based Fuzzy algorithm is applied to control boost converter for maximum power point tracking, To modulate the DC-DC converter linguistic variables are implemented in the fuzzy logic controller. Type 1 controller is capable of tracking maximum power under varying weather conditions, great execution and good accuracy compared to conventional method. The proposed method is validated by simulation using MATLAB/SIMULINK. Keywords: Photovoltaic, Fuzzy Logic controller, DC-DC converter, linguistic variable.