A Novel Fractional-Order Active Disturbance Rejection Load Frequency Control Based on An Improved Marine Predator Algorithm

Load frequency control (LFC) serves as a crucial component of automatic generation in renewable energy power systems. Its primary objective is to maintain balance between the output generators and load demand, thereby ensuring system stability. However, integrating sources into systems brings forth several challenges, such low quality poor stability due their uncontrollable nature. To enhance response speed, stability, disturbance rejection capabilities LFC, novel fractional-order active controller (NFOADRC) based on an improved marine predator algorithm (IMPA) has been designed this paper. By leveraging wide frequency-response range non-local memory NFOADRC, more precise prediction compensation rapid oscillations can be achieved. Additionally, IMPA utilized for efficient parameter tuning, enabling accurate adjustment controller. Subsequently, combined application these approaches applied two-area interconnected with solar thermal plant (STPP) five-area including wind turbine generator (WTG), photovoltaic (PV) cells, hydro turbine, gas turbine. The simulation results confirm that proposed strategy effectively minimizes undershoot overshoot deviation system. It achieves faster stabilization frequency, leading enhanced quality.