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– Partial shading has shown to be a common efficiency issue for photovoltaic arrays installations, whether for islanded or grid-tied systems. Current diverter appears as reasonable solution, but with the increasing of string order, the currents deviated difficult the sizing of inductors. Also, in this type of converter, a multilevel synchronized gate-driver is needed. In this work, an independently cell string current diverter is proposed. This configuration is based in the NonDissipative String Current Diverter, however, its inductors current achieve low values during partial shading, and does not need synchronism of its gatedrivers. Also, this configuration facilitates one local Maximum Power Point Tracking for each module, and enables the enhancement of efficiency with simple implementation. The simulation and experimental results are presented to give support to the theoretical development. 1

Cascaded Cell String Current Diverter for Improvement of Photovoltaic Solar Array Under Partial Shading Problems