Low-voltage ride-through concept in flyback inverterbased alternating current-photovoltaic modules

The flyback inverter-based alternating current-photovoltaic modules´ behaviour under voltage rise/drop conditions is investigated. Specifically, the aim is to calculate the module steady-state operational characteristics of distributed generators, such us generation loss and root mean square current rise, based on the low-voltage ride-through capability requirements. The proposed analysis stands for the widely known discontinuous conduction mode of operation and it can also account for high power inverter topologies. Furthermore, the derived expressions are corroborated by means of PSPICE simulation along with the selected experimental results and insightful discussions.