Maximum Power Extraction from Wind Turbines Using a Fault-Tolerant Fractional-Order Nonsingular Terminal Sliding Mode Controller

This work presents a nonlinear control approach to maximise the power extraction of wind energy conversion systems (WECSs) operating below their rated speeds. Due nonlinearities associated with dynamics WECSs, stochastic nature wind, and inevitable presence faults in practice, developing reliable fault-tolerant strategies guarantee maximum production WECSs has always been considered important. A fractional-order nonsingular terminal sliding mode (FNTSMC) strategy maximize captured turbines (WT) subjected actuator is developed. surface proposed ensure fast finite-time convergence, whereas incorporation fractional calculus controller enhances convergence speed system states simultaneously suppresses chattering, resulting extracted maximisation by precisely tracking optimum rotor speed. Closed-loop stability analysed validated through Lyapunov criterion. Comparative numerical simulation analysis carried out on two-mass WT, superior performance method over other methods demonstrated, both fault-free faulty situations.