Speed Control of Single Phase Induction Motor Using New Improved Nonsingular Fast Terminal Sliding Mode Control

This paper proposes new improved Nonsingular Fast Terminal Sliding Mode Control (NFTSMC) technique for speed control of Single-Phase Induction Motor (SPIM). The proposed method avoided the conventional difficulties of Terminal Sliding Mode Control (TSMC), Fast Terminal Sliding Mode Control (FTSMC) and Improved Fast Terminal Sliding Mode Control (FTSMC); gains difficult tuning and the singularity of the solution. The proposed method was evaluated by adding adjustable nonlinear element to the conventional SMC without any constraint. The proposed method was analyzed and its stability was proved using Lyapunov stability theory. The simulation results show that the proposed method can track the reference speed with minimum settling time and overshoot and torque ripples minimization without affecting the current loop compared to the conventional PI controller and Back Propagation Neural Network (BPNN) based PI in vector control scheme.