A Fractional-Order ADRC Architecture for a PMSM Position Servo System with Improved Disturbance Rejection

被引:5
|
作者
Wang, Shaohua [1 ]
Gan, He [1 ]
Luo, Ying [2 ]
Luo, Xin [1 ]
Chen, Yangquan [3 ]
机构
[1] Huazhong Univ Sci & Technol, Sch Mech Sci & Engn, Wuhan 430074, Peoples R China
[2] South China Univ & Technol, Sch Automat Sci & Engn, Guangzhou 510641, Peoples R China
[3] Univ Calif Merced, Sch Engn, Dept Mech Engn, Mechatron Embedded Syst & Automat Lab, Merced, CA 95343 USA
基金
中国国家自然科学基金;
关键词
fractional-order control; active disturbance rejection control; extended state observer; PMSM position servo system; disturbance rejection; CONTROLLER;
D O I
10.3390/fractalfract8010054
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
This paper proposes an active disturbance rejection control (ADRC) architecture for a permanent magnet synchronous motor (PMSM) position servo system. The presented method achieved enhanced tracking and disturbance rejection performance with a limited observer bandwidth. The model-aided extended state observer (MESO)-based ADRC was designed for the current, speed, and position loops of the PMSM position servo system. By integrating known plant information, the MESO improved disturbance estimation with a limited observer bandwidth without amplifying the noise. Additionally, a fractional-order proportional-derivative (FOPD) controller was designed as the feedback controller for the speed loop to further enhance the disturbance rejection. A simulation and experimental tests were conducted on a PMSM servo platform. The results demonstrate not only that the proposed method achieved superior tracking performance but also that the position error of the proposed strategy decreases to 2.25% when the constant disturbance was input, significantly improving the disturbance rejection performance.
引用
收藏
页数:20
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