T–S Fuzzy Algorithm for Photovoltaic Panel

In this paper, we propose a new Maximum Power Point Tracking algorithm for a photovoltaic conversion chain. The system energy conversion, which includes photovoltaic array panel, DC/DC converter, and load, is described by some nonlinear equations. The operating point depends mainly on climatic parameters and load. For each temperature and irradiation pair, there exists only one operating point for maximum energy. The Takagi–Sugeno fuzzy system has been used to model energy conversion system. The proposed algorithm which constitutes the controller is based on modified parallel distributed compensation. The controller has two terms, the first includes the errors and the second includes the integrators of the errors. The controller parameters have been computed based on linear matrices inequalities. Some simulations have been done to check the performance of the proposed algorithm.