Advancements in Power System Stability: FOPID Control Optimization using Harris Hawk Algorithms in SMIB Systems

Ensuring robust power system stability is paramount for the reliable operation of electrical grids. This seminal study delves deeply into the enhancement of stability within Single Machine Infinite Bus (SMIB) configurations by synergistically integrating Fractional Order Proportional Integral Derivative (FOPID) controllers with the Harris Hawks Optimization (HHO) algorithm. The SMIB model, emblematic of a synchronous generator interfaced with an infinite bus, serves as the cornerstone for meticulous stability analyses. Integral to this research is the deployment of FOPID controllers, characterized by fractional order parameters encompassing proportional, integral, and derivative facets, pivotal for nuanced control in dynamic grid environments. Leveraging the innate capabilities of HHO-a nature-inspired optimization paradigm-the study meticulously refines FOPID parameters. Methodologically, this entails crafting an objective function targeting minimized control discrepancies and employing HHO to iteratively hone the FOPID controller's efficacy. Empirical evaluations unveil compelling outcomes: markedly enhanced stability profiles, diminished overshoot phenomena, expedited settling durations, and augmented transient responses. Consequently, this pioneering research unveils a transformative methodology amalgamating fractional order control nuances with nature-inspired optimization techniques, heralding a promising trajectory toward fortifying power system stability in contemporary electrical infrastructures.