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In this paper, the LLC resonant converter-based photovoltaic (PV) water pumping is proposed. PV water pumping is proved as a promising solution in remote areas where electricity is still a major concern and thus helpful in providing drinkable water, supporting irrigation activities as a self-sufficient system. Commercially available PV-based water pumping system consists of a non-isolated DC-DC converter which is suitable for low power applications however results in a less safe operating environment for humans. In the case of PV based water pumping systems, the safety of humans should be the main concern, as these systems are normally being operated by farmers, their families, and it may be possible that they are not that aware of operational hazards. Therefore, this paper attempts to present an LLC converter-based PV water pumping system, considering human safety as a major concern. The proposed system is simulated in MATLAB/Simulink environment, and results show that the proposed system configuration has no adverse impact on system efficiency, and it enhances the safety of operating personals. Presented results can be further exploited for hardware verification as the future scope of this work.

LLC Converter Based PV Water Pumping System With Enhanced User Safety Approach