Extended State Observer-Based Predictive Speed Control for Permanent Magnet Linear Synchronous Motor

• Main Authors: Yao Wang, Haitao Yu, Zhiyuan Che, Yuchen Wang, Cheng Zeng
• Format: Article
• Language: English
• Published: MDPI AG 2019-09-01
• Series: Processes
• Subjects: permanent magnet linear synchronous motor (PMLSM); extended state observer (ESO); predictive function control (PFC); composite control; robustness
• Online Access: https://www.mdpi.com/2227-9717/7/9/618

Combining the feedback of predictive function control and the feedforward of extended state observer, a composite control strategy is proposed for the permanent magnet linear synchronous motor (PMLSM). The mathematical model of the PMLSM vector control system is established based on the basic structure and operation mechanism of PMLSM. Then, a speed regulator based on predictive function control (PFC) is designed to improve the speed tracking performance of the PMLSM drive system. The state and disturbance of the PMLSM system estimated by the extended state observer (ESO) transferred to the PMLSM drive system, and the robustness of the drive system will be improved. Comparative simulation and experiment results show that the proposed method has better speed tracking performance and disturbance rejection property.