Analysis of P&O and INC MPPT Techniques for PV Array Using MATLAB

Abstract

Maximum power point tracking (MPPT) techniquesare used in photovoltaic (PV) systems to maximize the PV array output power by tracking continuously the maximum power point (MPP) in the P-V curve of a photovoltaic array.The maximum power is tracked with respect to temperature and irradiance levels by using DC-DC converter. The perturbation and observation(P&O) and Incremental Conductance(INC)algorithms are applied here for maximum power point tracking (MPPT) purpose. These algorithms are selecteddue to its ability to withstand against any parameter variation and having high efficiency as well as ease of implementation.Here, the output of the system is connected to a grid so that the proposed system works as a solar generator on sunny days, in addition to working as an active power line conditioner on rainy days. Finally, computer simulations and experimental results demonstrate the superior performance of the proposed technique.