Fruit Fly Algorithm Optimised Degree of Freedom Controller for the Dynamical Stability of the Renewable Energy Penetrated Multi Area Power SystemCh. Naga Sai Kalyan, Pasala Gopi, Priyanka Joshi, T. Himabindu and Mohit BajajE3S Web Conf., 564 (2024) 01001DOI: https://doi.org/10.1051/e3sconf/202456401001