A Maximum Power Point Tracking of PV System by Scaling Fuzzy Control

A scaling fuzzy logic control (FLC) maximum power point tracking (MPPT) algorithm is suggested in this paper. The scaling FLC algorithm is modified from FLC algorithm to achieve MPPT in spite of single or 10 solar PV cells. Here, our solar system is composed of solar penal, boost dc/dc converter and MPPT controller, and then we use OrCAD Pspice for the system simulation. The simulated cases focus on the steady-state response, the dynamic response to the variation of the solar-cell current or load resistance. The simulated results are illustrated to show the efficacy of the proposed algorithm.