Modified Hybrid PSO–FL MPPT for Photovoltaic Systems Under Partial Shading Conditions

Under Partial shading conditions (PSC), traditional MPPT methods such as P&O and FL, cannot track down the Global MPP, the energy conversion efficiency will be reduced. In order to overcome the performance problem of a photovoltaic system, we proposed a modified MPPT PSO_FL control. ++The simulation results carried out under various partial shading patterns showed that the modified Hybrid PSO-FL gives very satisfactory performances: an improvement of the response time, a total elimination of the undulations, and a good tracking of maximum power point.