MPP detection of a partially shaded PV array by continuous GA and hybrid PSO

(in lingua inglese)

A PV array is modeled in MATLAB/SIMULINK environment. CGA and HPSO techniques are applied for detecting the MPP of a partially shaded PV array. The results obtained by using CGA/HPSO are compared to a standard conventional MPPT algorithm such as P&O algorithm. It is reported in the literature that the performance of the P&O algorithm in detecting the MPP is very efficient for a uniformly shaded PV array system. But it is observed in the present work that the same fails to achieve its objective in case of a partially shaded PV array which may lead to under-utilization of the PV array. It is observed from the results that the CGA and the HPSO algorithm overcome this problem associated with conventional P&O algorithm in detecting the MPP under the condition of partially shading of the PV array.