Design of two PV systems (solar panel, MPPT controller, DC converter and inverter). The main objective is to compare a PV system using the conventional perturb and observe algorithm and a PV system using a modified Perturb and observe algorithm and prove that the output of the system using the modified Perturb and observe algorithm is better than the output of the system using conventional Perturb and observe algorithm (time, reduction of oscillations, good tracking under fast changing of irradiance, better efficiency ). The specific objectives are the design of a solar panel, of a DC converter and a MPPT controller. here attached is a modified PandO algorithm paper, but if you have any that is better, please do implement it. The expected results: -faster tracking time of the modified Pand O -reduction of oscillations - stability of the system under rapid changing of irradiance