An improved particle swarm optimization MPPT algorithm based on voltage window restrictions

There are several maximum power points tracking algorithm using for the multi-peak MPPT algorithm optimization of photovoltaic cell array, such as the emergence of a global particle swarm algorithm. But particle swarm MPPT algorithm has less stable, larger voltage and power fluctuations, lower energy efficiency. To solve this problem, this paper propose a novel particle swarm optimization algorithm based on voltage window limits, by limiting the voltage range of particle swarm algorithm, a substantial increase the convergence speed, decrease the power fluctuations and reduce energy consumption. Simulation and experimental results show that the optimized algorithm has better performance in the global maximum power point tracking. This paper also create the conditions for the application of global maximum power point tracking algorithm.