Extraction of Maximum Power from a PV Array under Non Uniform Irradiation Conditions

Abstract

The series and parallel connected panels , partial shading occurs which decrease output power and introduce multiple peaks in the P-V curve. Therefore, to maximize the power extraction from PV array, the panels need to be reconfigured for minimization of row current difference. Row current minimization via Su Do Ku game theory do physical relocation of panels may cause laborious work and lengthy interconnecting ties. Hence in this paper, an alternative to physical relocation based on particle swarm optimization (PSO) connected modules is proposed. In this method the physical location of the modules remains unchanged, while its electrical connections are altered. Extensive simulations are carried out and thorough analysis with the help of I-V, P-V curves are done to support the usefulness of the proposed method. The effectiveness of proposed PSO technique is evaluated via performance analysis based on energy saving and income generation.