Observer based control for a PV system modeled by a Fuzzy Takagi Sugeno model

This paper deals with a design of a Fuzzy Takagi Sugeno Observer for a class of nonlinear Photovoltaic (PV) systems. First, a nonlinear PV plant with a Takagi-Sugeno (TS) fuzzy model is presented. Then a model-based fuzzy observer design utilizing the concept of the Parallel Distributed Compensation (PDC) is used, in which observer gains are obtained by solving Linear Matrix Inequalities (LMIs). The control block based on MPPT algorithm will use in real-time the result provided by the nonlinear observer.