Fuzzy-based Fractional Control Structure for Enhanced Load Frequency Control

In the presented article, a fuzzy-based fractional order control structure has been employed to enhance the system performance of a multi-area interconnected power system, which has inherent nonlinearity in its turbine system, specifically the generation rate constraint. As we know, fuzzy has established its supremacy in handling system parametric variations over conventional controllers. In this article, we also incorporated fractionality in association with fuzzy logic to tackle the disturbance rejection more effectively. The Fuzzybased FO controller performance has been compared with the conventional PID controller and found to improve its performance index by 51.7% over the PID controller. Furthermore, the efficacy of the proposed controller has been tested for a random step load perturbation and found to be superior to that of the existing control structure.