Photovoltaic Array Maximum Power Point Tracking Using a Fuzzy-Sliding Mode Control

In this paper, we propose a new fuzzy sliding mode controller for the maximum power point tracking (MPPT) of a photovoltaic system under variable temperature and insolation conditions. In this scheme, the DC-DC converter device is controlled by fuzzy sliding mode controller, in which the fuzzy logic controller replaces the discontinuous part of the classical SMC law (k ⋅ sign(s)). The different steps of the design of this controller are presented together with its simulation. The effectiveness of the proposed control scheme is verified by numerical simulation. The numerical validation results of the proposed scheme have presented good performances compared to the classical sliding mode control.