Multi-disturbance Mitigation based Deadbeat Predictive Current Control for PMSM

The majority of existing control methods on the basis of deadbeat predictive current control (DPCC) solely consider the impact of a single disturbance on the system. This paper presents an improved DPCC method for permanent magnet synchronous motor (PMSM) with multi-disturbance mitigation. Firstly, the speed loop utilizes a linear active disturbance rejection controller (LADRC) technique. Employing the total disturbance concept, it effectively suppresses both non-periodic and periodic disturbances in the speed loop. To address disturbances arising from model mismatch, the current loop incorporates an extended state observer (ESO) for compensating disturbances and estimating control currents. The proposed control scheme effectively suppresses various disturbances simultaneously. The simulation outcomes affirm the efficacy of the proposed approach.