Abstract
This paper presents optimal parameters selection of particle swarm optimization (PSO) algorithm for determining the global maximum power point tracking of photovoltaic array under partially shaded conditions. Under partial shading, the power-voltage characteristics have a more complex shape with several local peaks and one global peak. The two proposed controllers include dynamic Particle Swarm Optimization, and constant particle swarm optimization. The developed algorithms are implemented in MATLAB/Simulink platform, and their performances are evaluated. The results indicate that the dynamic particle swarm optimization algorithm can very fast track the GMPP within 128 ms for different shading conditions. In addition, the average tracking efficiency of the proposed algorithm is higher than 99.89%, which provides good prospects to apply this algorithm in the control search unit for the global maximum power point in stations.
Highlights
These days, the faster rise in electricity demand and the novel change in ecological situations like global warming generation by means of traditional sources
The first type is named dynamic particle swarm optimization (PSO) (DPSO) in which its parameters are varying with the time
Design and implementation of PSO To minimize the tracking time of the global maximum power point (GMPP) of the PV panels, it is necessary to take into account three important factors when design the PSO algorithm, and these parameters are the choice of PSO parameters, the number of particles, and the sample time
Summary
These days, the faster rise in electricity demand and the novel change in ecological situations like global warming generation by means of traditional sources. Constant voltage [6], Perturb and Observe [7], incremental inductance [8], Hill climbing [7], frictional short-circuit current [9], ripple correlation control and sliding control [10]. These methods give good response under normal irradiance of solar panels they failed to track the global maximum power point (GMPP) in case of partial shading conditions (PSC) [11].
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