Abstract:
This paper evaluates the most commonly used MPPT techniques and finds which MPPT technique is most suitable for grid connected systems. This paper presents the modelling of a Photovoltaic cell, dc to dc converter, and simulation study of a grid connected PV system. In this paper a new discrete time integral incremental conductance algorithm is proposed. Using mat lab/Simulink platform results are verified.

Keywords: Maximum Power Point Tracking (MPPT), Perturb and Observe algorithm (P&O), Incremental Conductance(IC), Fuzzy logic, Photovoltaic (PV)