Improved Multi-step FCS-MPCC with Disturbance Compensation for PMSM Drives -- Methods and Experimental Validation

TL;DR

This paper introduces an improved multi-step FCS-MPCC with disturbance compensation for PMSM drives, enhancing steady-state and dynamic performance through a novel prediction mechanism and disturbance observer, validated by simulations and experiments.

Contribution

It proposes a new multi-step prediction method and disturbance compensation scheme to improve PMSM drive control performance.

Findings

Enhanced steady-state performance with multi-step prediction

Improved dynamic response via disturbance compensation

Validated effectiveness through simulations and experiments

Abstract

In this paper, an improved multi-step finite control set model predictive current control (FCS-MPCC) strategy with speed loop disturbance compensation is proposed for permanent magnet synchronous machine (PMSM) drives system. A multi-step prediction mechanism is beneficial to significantly improve the steady-state performance of the motor system. While the conventional multi-step prediction has the defect of heavy computational burden, an improved multi-step finite control set model predictive current control (IM MPCC) strategy is proposed by developing a new multi-step prediction mechanism. Furthermore, in order to improve the dynamic response of the system, a disturbance compensation (DC) mechanism based on an extended state observer (ESO) is proposed to estimate and compensate the total disturbance in the speed loop of the PMSM system. Both simulation and experimental results validate the effectiveness of the proposed control strategy.