Distributed photovoltaic maximum power tracking system and method based on GA-PSO algorithm

The invention discloses a distributed photovoltaic maximum power tracking system based on a GA-PSO algorithm, and the system is characterized in that a photovoltaic array engineering equivalent circuit model building module is used for building a photovoltaic array engineering equivalent circuit model, and determining the relation between the output power and the output current of a photovoltaic array; the distributed framework system diagram construction module is used for constructing a photovoltaic string distributed framework system diagram, and a distributed framework grid-connected mode is adopted to ensure that each photovoltaic string can realize maximum power tracking; the GA-PSO algorithm module is used for iteratively solving the nonlinear equation by applying an improved GA-PSO algorithm to obtain an output current corresponding to the maximum value of the total output power function of the photovoltaic module string; and the maximum power point tracking module is used for realizing maximum power