Global maximum power point tracking of PV system using dynamic population size differential evolution (DynNP-DE) algorithm

In this paper, a population-based direct global optimization technique called Dynamic Population Size Differential Evolution (DynNP-DE) to deal with partial shading occurrence is proposed. In this proposed technique, the size of the population is significantly reduced without compromising the robustness of the original DE algorithm. To evaluate the effectiveness of the proposed MPPT technique, the algorithm is implemented on a boost converter and validated through several partial-shading patterns. Simulation results show that the proposed modification yields faster convergence and capable to handle partial shading conditions.