PMSM Sensorless Control System Based on Super Twisting-Terminal SMC and SMO-PLL Observer

PMSM Sensorless Control System Based on Super Twisting-Terminal SMC and SMO-PLL Observer

연구 분야: Software Development

학회: 2024 28th International Conference on System Theory, Control and Computing (ICSTCC)

Addressing control performance of the Permanent Magnet Synchronous Motor (PMSM) with sensorless control systems which use Field Oriented Control (FOC), this paper proposes a control structure which uses a Super Twisting-Terminal Sliding Mode Control (ST-SMC) type control. Moreover, concerning the speed estimation for the PMSM rotor, the performance of a Sliding Mode Observer (SMO) type observer is improved by using a Phase Locked Loop (PLL) control technique. The control performance of the sensorless control system is improved by optimally tuning the parameters of the ST-SMC controller using an Ant Colony Optimisation (ACO) algorithm. The control structures, observer and controller synthesis and proof of their convergence are also presented. Several computer simulations achieved in the Matlab/Simulink software environment demonstrate the superiority of the proposed sensorless PMSM control system compared to the classical version. The performance criteria used for comparisons are classical indicators such as settling and rise time, speed signal ripple, stationary error, and Total Harmonic Distortion (THD).