scholarly journals Extended Backstepping Sliding Controller Design for Chattering Attenuation and Its Application for Servo Motor Control

2017 ◽  
Vol 7 (3) ◽  
pp. 220 ◽  
Author(s):  
Li-Hsin Chen ◽  
Chao-Chung Peng
Keyword(s):  
Motor Control ◽  
Controller Design ◽  
Servo Motor ◽  
Chattering Attenuation

scholarly journals Nonlinear Compound Control for Nonsinusoidal Vibration of the Mold Driven by Servo Motor with Variable Speed

2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Qiang Li ◽  
Yi-ming Fang ◽  
Jian-xiong Li ◽  
Zhuang Ma
Keyword(s):  
Control Method ◽  
Controller Design ◽  
Rotation Speed ◽  
Pi Control ◽  
Variable Speed ◽  
Servo Motor ◽  
Motor Speed ◽  
Vector Method ◽  
Compound Control ◽  
The Relationship

In this paper, a fuzzy PI control method based on nonlinear feedforward compensation is proposed for the nonsinusoidal vibration system of mold driven by servo motor, rotated in single direction with variable speed. During controller design, there are mainly two issues to consider: (i) nonlinear relationship (approximate periodic function) between mold displacement and servo motor speed and (ii) uncertainties caused by backlash due to motor variable speed. So, firstly, the relationship between mold displacement and motor rotation speed is built directly based on the rotation vector method. Then, an observer is designed to estimate the uncertainties and feedforward compensation. Secondly, as the motor rotates in single direction with variable speed, a fuzzy control with bidirectional parameter adjustment is adopted to improve rapidity and stability based on the traditional PI method. Finally, some simulation results show the effectiveness of the proposed control method.

An Improved Sliding Mode Control Method and its Application

2012 ◽  
Vol 200 ◽  
pp. 459-461
Author(s):  
Jian Zhu ◽  
Chang Fan Zhang ◽  
Mao Zhen Cui ◽  
Gang Huang
Keyword(s):  
Motor Control ◽  
Control Method ◽  
Sliding Mode ◽  
Variable Speed ◽  
Servo Motor ◽  
Motor Speed ◽  
Reaching Law ◽  
Speed Range ◽  
Packaging Industry ◽  
Simulation Results

With the shaftless driving technology used in the packaging industry,servo motor control has become increasingly demanding. Beginning with the reasons of chattering, this article proposes a new sliding mode reaching law,adding a power attenuation term in front of the variable speed item,and then affects the shaftless gravure package printing chromatography system with PMSM as the actuator, improved servo motor speed range and efficency of the shaftless driving system.At last,the simulation results indicate the effectiveness of the proposed approach.

scholarly journals Gliding-Guided Projectile Attitude Tracking Controller Design Based on Improved Adaptive Twisting Sliding Mode Algorithm

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Wenguang Zhang ◽  
Wenjun Yi
Keyword(s):  
Finite Time ◽  
Tracking Control ◽  
Controller Design ◽  
Sliding Mode ◽  
Closed Loop System ◽  
Finite Time Convergence ◽  
Attitude Tracking ◽  
Control Scheme ◽  
Chattering Attenuation ◽  
Attitude Tracking Control

The finite-time attitude tracking control for gliding-guided projectile with unmatched and matched disturbance is investigated. An adaptive variable observer is used to provide estimation for the unmeasured state which contains unmatched disturbance. Then, an improved adaptive twisting sliding mode algorithm is proposed to compensate for the matched disturbance dynamically with better transient quality. Finally, a proof of the finite-time convergence of the closed-loop system under the disturbance observer and the adaptive twisting sliding mode-based controller is derived using the Lyapunov technique. This attitude tracking control scheme does not require any information on the bounds of uncertainties. Simulation results demonstrate that the proposed method which is able to acquire the minimum possible values of the control gains guaranteeing the finite-time convergence performs well in chattering attenuation and tracking precision.

Auto-Tuning Digital Control Based on Parameters Identification and Disturbance Observer

2006 ◽  
Vol 505-507 ◽  
pp. 529-534 ◽  
Author(s):  
Chin Sheng Chen ◽  
Yu Reng Lee
Keyword(s):  
Controller Design ◽  
Tracking Error ◽  
Parameters Identification ◽  
Least Square ◽  
Servo Motor ◽  
Recursive Least Square ◽  
Estimated Parameters ◽  
On Line ◽  
Feedforward Controller ◽  
Auto Tuning

This paper presented a digital servo driver that realizes an auto-tuning feedback and feedforward controller design using on-line parameters identification. Firstly, the variant inertia constant, damping constant and the disturbed load torque of the servo motor are estimated by the recursive least square (RLS) estimator, which is composed of an RLS estimator and a disturbance torque compensator. Furthermore, the auto-tuning algorithm of feedback and feedforward controller is realized according to the estimated parameters to match the tracking specification. The proposed auto-tuning digital servo controllers are evaluated and compared experimentally with a traditional controller on a microcomputer-controlled servo motor positioning system. The experimental results show that this auto-tuning digital servo system remarkably reduces the tracking error.

Multi-Stage PWM DC Servo Motor Control

1989 ◽  
Vol 22 (18) ◽  
pp. 341-345
Author(s):  
S. Sugiyama
Keyword(s):  
Motor Control ◽  
Servo Motor ◽  
Multi Stage
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