Model predictive torque control with an extended prediction horizon for electrical drive systems

Abstract

This paper presents a model predictive torque control method for electrical drive systems. A two-step prediction horizon is achieved by considering the reduction of the torque ripples. The electromagnetic torque and the stator flux error between predicted values and the references, and an over-current protection are considered in the cost function design. The best voltage vector is selected by minimising the value of the cost function, which aims to achieve a low torque ripple in two intervals. The study is carried out experimentally. The results show that the proposed method achieves good performance in both steady and transient states.

Keywords:

• predictive torque control
• prediction horizon
• electrical drives

Acknowledgements

The statements made herein are solely the responsibility of the authors. The support of the Universidad Tecnica Federico Santa Maria is also acknowledged.

Additional information

Funding

This publication was made possible by a National Priorities Research Program grant from the Qatar National Research Fund [grant number NPRP 4-077-2-028].