A Non-Smooth Composite Control Approach for Direct Torque Control of Permanent Magnet Synchronous Machines

被引：8
|
作者：
Xia, Chunhua [1 ]
Li, Shenghui [2 ]
Shi, Ying [2 ]
Zhang, Xinghua [3 ]
Sun, Zhenxing [3 ]
Yin, Wenqing [1 ]
机构：
[1] Nanjing Agr Univ, Sch Engn, Nanjing 210031, Jiangsu, Peoples R China
[2] Nanjing Univ Sci & Technol, Zijin Coll, Sch Elect & Opt Engn, Nanjing 210023, Jiangsu, Peoples R China
[3] Nanjing Tech Univ, Coll Elect Engn & Control Sci, Nanjing 211816, Jiangsu, Peoples R China
来源：
IEEE ACCESS | 2019年 / 7卷
基金：
美国国家科学基金会;
关键词：
Permanent magnet synchronous machine (PMSM); direct torque control (DTC); disturbance rejection; finite-time disturbance observer (FTDO); finite-time control (FTC); FINITE-TIME STABILIZATION; SPEED CONTROL; DESIGN; SYSTEMS; IMPLEMENTATION; OBSERVER; PMSM; STABILITY;
D O I：
10.1109/ACCESS.2019.2905103
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Considering the effects of disturbances in permanent magnet synchronous motor (PMSM), in this paper, a non-smooth composite control approach, which includes finite time disturbance observer (FTDO) for feedforward compensation and finite time control (FTC) for feedback control, is proposed to improve the anti-disturbance performance of PMSM. First, the FTDO is used to estimate the lumped disturbances, such as friction, parameter perturbation, and load variation. Then, the observed value is added to the speed controller as a feedforward compensation to eliminate the effect of disturbance. Second, FTC is introduced into the feedback control design part. In the end, by utilizing Lyapunov theory, the stability analysis of the overall closed-loop system is demonstrated. In contrast to the conventional asymptotically stable control strategy, the proposed composite scheme can provide not only a faster dynamic response but also a stronger capacity of disturbance rejection. The simulation and experimental tests are presented to demonstrate the superior properties of the proposed control scheme.
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页码：45313 / 45321
页数：9
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