In this paper, the control and energy management system (EMS) has been addressed for the smart isolated grid system. The proposed system consists of two sources for the production of renewable energy, solar cell (PV) and fuel cell (FC). These units work to integrate production and achieve stability, where PV is considered the primary source of production, in the case of the availability of ideal conditions from radiation and temperature, FC compensates for the lack of energy when any defect occurs in the PV unit. Two types of storage units, Battery (Bat.) and a super-capacitor (SC), were linked, each complementing the other to get a fast and long-term response. These units are linked with DC_bus by inverters. DC_bus and AC_bus were used with AC and DC loads. By using two types of control methods PID and Flatness to obtain a constant voltage For AC and DC loads, Also the PSO method was used to track the production of units PV to obtain the highest energy from the available solar radiation MPPT, where the super-capacitor SC controls the voltage of DC and AC bus. The Matlab program represented the system, and it was found that this system can be applied to isolated networks to obtain high power stability