Study Of Permanent Magnet Synchronous Motor Interference Compensation Based On Model Predictive Current Control

Bin  Zhang; Xuan  Du; Zhanpei  Miao

doi:10.6180/jase.202403_27(3).0011

Study Of Permanent Magnet Synchronous Motor Interference Compensation Based On Model Predictive Current Control

Bin Zhang, Xuan DuThis email address is being protected from spambots. You need JavaScript enabled to view it., Zhanpei Miao

School of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China

Received: May 14, 2023
Accepted: July 10, 2023
Publication Date: August 31, 2023

Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Download Citation: ||https://doi.org/10.6180/jase.202403_27(3).0011

Due to the high efficiency and high performance of permanent magnet synchronous motors are used in various industries, such as aerospace. The main problem of achieving optimal performance control of PM synchronous motors is the heavy burden of control algorithms and large current pulsation. Due to the advantages of simple model predictive control algorithm and no need to set any control parameters, it is applied to the performance control of PM synchronous motors. The mid-point clamped three-level inverter is widely used because of its simple structure and versatility. However, the PM synchronous motor is susceptible to external load disturbances and internal parameter disturbances with large variations, and current harmonics and rotational arterial distance are difficult to control. In order to effectively solve the problem of disturbance disturbances, this paper proposes a functional disturbance observer (FDOB) based on the disturbance observer (DOB), which has the advantages of low order and handling more kinds of disturbances. In this paper, model predictive control and midpoint clamped three-level inverter are used. Compared with the traditional PI control method, the proposed functional disturbance observer plus model prediction control strategy can effectively reduce the disturbance perturbation of the motor, perform disturbance compensation, improve the motor speed response speed, improve the output current quality, enhance the system robustness and other advantages.

Keywords: Permanent magnet synchronous motor; model predictive control; inverter; function disturbance observer;

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