Performance of the Global MPPT Algorithms — A brief overview and case studies

In this paper a general presentation of the global maximum power point tracking (GMPPT) algorithms, their classification and case studies are shown. In the first case study, the simulation of the GMPPT algorithm using perturbed-based extremum seeking control (PESC) scheme based on a band pass filter (named G1PESC scheme), and the GMPPT algorithm using PESC scheme based on two band pass filter (named G2PESCscheme) is performed. The comparative analysis of the two schemes shows that their performances are almost similar: search time of 0.2 seconds and tracking accuracy of 99,9%. For the second case study, the performances obtained with the G1PESCscheme and Perturb and Observe (P&O) algorithm is compared.