The goal of this work is an implementation of real-time energy management systems (EMS) to maximize the efficiency of power distribution in an isolated hybrid system containing photovoltaic modules, a wind turbine and a battery energy storage system used as a backup source. However, hybridization of multiple sources requires power flow control. For this reason, in this paper, a suitable power management system is developed using a deterministic fuzzy rule-based algorithm to control the proposed multi-source autonomous system. The developed EMS is tested and validated by an application of arc welding in remote industrial sites located in Adrar, a remote region in the southern Algerian Sahara.