一种用于光伏应用的新型并网非对称多电平变换器

In this article, an asymmetrical multilevel inverter (MLI) for employment in PV systems is introduced. Using a unidirectional isolated dc–dc converter at the input of the system, in addition to increasing the PV voltage level, prevents reverse power flow and can be used in high-power applications. This converter also isolates the PV source from the grid through a high-frequency transformer. The dc...