Improved Non-singular Fast Terminal Sliding Mode Control for SPMSM Speed Regulation

An improved non-singular fast terminal sliding mode control (INFTSMC) is proposed in this study, to improve the dynamic speed regulation and tracking accuracy of a surface-mounted permanent magnet synchronous motor (SPMSM) system. A surface that completely removes singularities from controller input proposed. The key characteristics INFTSMC are convergence errors, high accuracy, robustness against disturbances. designed study proven be stable, with finite time stability based on Lyapunov theory. has response better performance than conventional control, as demonstrated by simulation hardware experiments both virtual real-time scenarios.