Algorithm for optimal power allocation at the DC inlet of a photovoltaic storage direct-supply system

Abstract The conventional power optimization configuration algorithm mainly focuses on static configuration and does not take into account the dynamic changes in photovoltaic output, which affects the final configuration balance. Therefore, a power optimization configuration algorithm for the DC access port of the optical storage DC flexible system was designed. With the goal of stabilizing the unbalanced power of the access port, a DC access port power optimization configuration model for the optical storage direct flexible system is constructed to optimize the energy storage capacity of the optical storage direct flexible system and meet the power optimization configuration requirements of the access port. By optimizing the allocation of high and low-frequency power components at the DC access port and eliminating the integral effect of power command configuration in the optical storage DC flexible system, stable DC power access can be achieved. Comparative experiments were conducted to verify that the algorithm has better performance and can be applied in practical life.