Improved Perturb And Observe Maximum Power Point Tracking Algorithm In Grid-Connected Photovoltaic Systems

Maximum power point tracking efficiency and dynamic performance of any maximum power point tracking algorithms play a vital role in grid-connected PV systems. This paper deals with an improved perturb and observe maximum power point tracking algorithm capable of enhancing the steady state and transient behavior. Selecting optimized perturbations parameters are achieved through analyzing the transient behavior of perturb and observe method. This algorithm is performed using an interface DC-DC boost converter. MATLAB/Simulink environment is used for simulating a 8.1 Kw grid-connected Photovoltaic systems and verified algorithm expected merits.

Keywords:

grid-connected PV systems , Maximum power point tracking , perturb and observe