Optimal α-Variable Model-Free Adaptive Barrier Function Fractional Order Nonlinear Sliding Mode Control for Four Area Interconnected Hybrid Power System With Nonlinearities. - Omer Abbaker Ahmed Mohammed; Lingxi Peng; Gehad Abdullah Amran; Hussain AlSalman; Modawy Adam Ali Abdalla; Omar Alkawmani; Muhammad Mursil; Bassiouny Saleh (IEEE Access, 2024)

Disturbance Observer-Based-Model-Free Adaptive Fuzzy Fractional-Order Prescribed Performance Control for Nonlinear PEMFC System with Uncertainties and Performance Constraints. - Omer Abbaker Ahmed Mohammed; Lingxi Peng; Gomaa Haroun Ali Hamid; Ahmed Mohamed Ishag (Int. J. Fuzzy Syst., 2025)