PSO based MPPT for Partially PV Arrays

Traditional MPPT algorithms such as P& O, Incremental conductance, Hill climbing are fail to track MPP (Maximum Power Point) when partial shading occurs for that purpose here introduce a new technique this is a combination of one traditional MPPT technique and one artificial intelligent is used this is called a hybrid MPPT it is a combination of P& O (Perturb& observe) with Particle Swarm Optimization (PSO) consequently, the conventional MPPT searches for the MPP in the estimated region. The proposed technique is modelled and simulated by using MATLAB R2011a/Simulink the results are compared with ANN based MPPT and PSO based MPPT for PV arrays under different shading patterns.