The interdependence of producing water and energy cleanly is the most inspiring concern of the recent research study in the world. In this context, this paper aimed to investigate the water-energy nexus with an original viewpoint in order to consolidate the interdependence between water and energy and unify their cooperative relationship. Hence, exploiting the energy sustainability of a grid-connected photovoltaic generator (GCPV) in providing water is authentic, moreover, capitalizing the water station, which is composed of three identical pumping units, to satisfy the grid code (GC) of a GCPV is original. To do that, sophisticated control strategies are used. On the side of GCPV, Voltage Oriented Control (VOC) strategy is assumed to regulate the DC bus voltage and to control the injected reactive power into the grid. On the side of the water station, the dynamic of each pumping unit is controlled using Power-Field Oriented Control (P-FOC) strategy. By manifesting a power control loop, this strategy is the leading technic to reach the satisfaction of the GC and the enhancement of the Low-Voltage Ride Through (LVRT). The second purpose of this paper consists of establishing original energy management by taking into account the different constraints imposed by the system, which are the intermittence and the fluctuations of the solar array, the Tunisian GC, and the tank capacity. Performance analysis of the proposed control strategies and the developed energy management are carried out in small-scale power range which is convenient to be implemented in agriculture applications in rural areas.
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