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Modelling and Simulation of a PV generator and MPPT using P&O Method and Fuzzy Logic Controller

Rajinder Singh, Prasenjit Basak.

This paper presents themodelling and design of the photovoltaic generator using Simscape MATLAB/Simulink and also design the performance of present stand-alone solar photovoltaic energy system with perturbation and observation (P and O) and artificial intelligence like fuzzy logic based maximum power point tracking (MPPT) algorithm. The system is intended for solar PV panels of 400 cells. Perturb and Observe and fuzzy logic method is used for tracking of Maximum power point (MPPT) which increases efficiency of the PV generator. In this paper the I-V and P-V characteristics of the PV generator are show and also show the scope result with respect to time. According to the P and O method or the fuzzy logic method, the array terminal voltage is always adjusted according to the MPP voltage and the duty cycle is adjusted directly in the algorithm. The system as good dynamic response and good tracking accuracy and increases the efficiency of the PV generator. The different results are presented in the form of the characteristic of the PV generator.