Improved sliding mode control for permanent magnet synchronous motor servo system

In this study, an improved sliding mode control (ISMC) method combining continuous non-singular terminal (CNTSM) and linear active disturbance rejection (LADRC) for permanent magnet synchronous motor (PMSM) servo system is proposed to improve the performance of PMSM. Based on mathematical model PMSM, combined with SMC theory LADRC theory, CNTSM controller based function solve singularity (TSM) control. order contradiction between convergence ability chattering suppression, fuzzy introduced adjust gain in real time. developed ensure current starting conditions robustness. Moreover, asymptotic stability guaranteed by Lyapunov theorem it verified AISim MBD experimental platform. Experiments show that algorithm has good tracking