Frequency stability in a power system can be disrupted by Small Load Perturbance (SLP). Frequency changes can be controlled by the governor using Load Frequency Control (LFC). Even when LFC is combined with several plants and optimization has been performed, stability issues may still arise. These issues can be addressed by adding an energy storage device (ESD). One type of ESD is Superconducting Magnetic Energy Storage (SMES), which helps to mitigate disturbances affecting frequency stability. In this study, a combination of power plants with renewable energy sources (RES), such as a wind power plant and a diesel power plant, was used alongside an ESD in the form of SMES. A PID controller with a hybrid optimization of Flower Pollination Algorithm (FPA) and Particle Swarm Optimization (PSO) was implemented for better stability solutions. This combination of plants has been successfully developed and simulated. Based on simulation results using two power plants, namely the diesel power plant and the wind power plant, it can be concluded that the addition of SMES with FPA-PSO optimization in the PID control can mitigate overshoot and undershoot and achieve a faster settling time compared to without the addition of SMES
