Robust Speed Regulation for PMSM Servo System With Multiple Sources of Disturbances via an Augmented Disturbance Observer

2018 ◽  
Vol 23 (2) ◽  
pp. 769-780 ◽  
Author(s):  
Yunda Yan ◽  
Jun Yang ◽  
Zhenxing Sun ◽  
Chuanlin Zhang ◽  
Shihua Li ◽  
...  
Keyword(s):  
Disturbance Observer ◽  
Servo System ◽  
Multiple Sources ◽  
Speed Regulation

Robust High-Speed Positioning Servo System Based on Disturbance Observer

2009 ◽  
Vol 129 (3) ◽  
pp. 235-242 ◽  
Author(s):  
Masaki Sazawa ◽  
Kiyoshi Ohishi ◽  
Seiichiro Katsura
Keyword(s):  
Disturbance Observer ◽  
High Speed ◽  
Servo System

Implementation of integral fixed-time sliding mode controller for speed regulation of PMSM servo system

2020 ◽  
Vol 102 (1) ◽  
pp. 185-196
Author(s):  
Linan Wang ◽  
Haibo Du ◽  
Weijian Zhang ◽  
Di Wu ◽  
Wenwu Zhu
Keyword(s):  
Sliding Mode ◽  
Servo System ◽  
Fixed Time ◽  
Sliding Mode Controller ◽  
Speed Regulation

scholarly journals Online Identification Methods of Load Rotary Inertia and Torque in Radar Servo System

2014 ◽  
Vol 2014 ◽  
pp. 1-8
Author(s):  
Yong Chen ◽  
Xia Liu ◽  
Hu Zhou
Keyword(s):  
Disturbance Observer ◽  
Servo System ◽  
Simulation Models ◽  
Synchronous Motor ◽  
Rotary Inertia ◽  
Load Torque ◽  
Reduced Order ◽  
Identification Methods ◽  
Luenberger Observer ◽  
Online Identification

In radar servo system, the load is usually subject to movement and gust, which may cause instability of the system. In this paper, the online identification methods of load rotary inertia and torque in radar servo system are proposed, respectively. The radar servo system is based on synchronous motor. The load rotary inertia of the system is identified online by a disturbance observer. Moreover, a reduced order Luenberger observer is designed to observe the variation of the load torque and velocity online. The simulation models are established to verify the proposed disturbance observer for the load rotary inertia and the reduced order Luenberger observer for the load torque and velocity.

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