Abstract
This paper deals with the utilization of multiple photovoltaic arrays (PVs) for charging of electric vehicles (EVs). The utilization of multiple PVs is beneficial for load levelling along with harmonics mitigation and EV charging proficiency through off-board charger. The operating principle with variable digital filter based control approach is presented here for three phase multiple solar PV systems. The applications of utilizing multiple PV arrays include uninterrupted charging with backup along with the ability to operate in grid connected and standalone modes of operation. Furthermore, with the rise in the usage of distributed energy resources (DERs) based on renewable power, the need for power quality (PQ) improvement is paramount. For the operation in an off-grid mode, the power transfer is achieved through a voltage controller, which allows the satisfactory operation during standalone mode of operation. The corroboration of satisfactory system behavior is obtained during various weak grid conditions.
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