scholarly journals Stress-Dependent Hysteresis Modeling and Tracking Control of Giant Magnetostrictive Actuator for Periodic Reference Input

2008 ◽  
Vol 41 (2) ◽  
pp. 2288-2293 ◽  
Author(s):  
Zhen Zhang ◽  
J.Q. Mao ◽  
W.L. Chen
Keyword(s):  
Tracking Control ◽  
Hysteresis Modeling ◽  
Magnetostrictive Actuator ◽  
Stress Dependent ◽  
Reference Input

Digital robust preview control of path tracking

2005 ◽  
Vol 219 (1) ◽  
pp. 111-116
Author(s):  
Y G Tan ◽  
D K Liu ◽  
F Liu ◽  
Z D Zhou
Keyword(s):  
Control Systems ◽  
Tracking Control ◽  
Control Method ◽  
Path Tracking ◽  
Trajectory Control ◽  
Control Problems ◽  
Preview Control ◽  
Input Signals ◽  
Simulation Results ◽  
Reference Input

A robust optimal preview control method is presented in this paper for path tracking control problems to improve robustness and tracking precision of path tracking control systems. The known path information is used as reference input signals. Simulation results show that this method is valid not only for improving the performance of highly accurate trajectory control but also for improving system stabilization.

Modeling and Control for GMA Based on Hammerstein Model Structure

2013 ◽  
Vol 668 ◽  
pp. 406-409
Author(s):  
Qing Song Liu ◽  
Zhen Zhang ◽  
J.Q. Mao
Keyword(s):  
Tracking Control ◽  
Hammerstein Model ◽  
Model Structure ◽  
Hysteresis Model ◽  
Modeling And Control ◽  
Feedforward Loop ◽  
Rate Dependent ◽  
Proposed Model ◽  
Magnetostrictive Actuator ◽  
And Control

A rate-dependent hysteresis model for Giant Magnetostrictive Actuator (GMA) is proposed based on Hammerstein model structure. The Generalized Prandtl-Ishlinskii (GPI) model is used to represent nonlinear block in Hammerstein model. The validity of model is examined by comparsion between simulation results and experimental data. Based on the proposed model, a PID feedback controller combined with an inverse compensation in the feedforward loop is used for tracking control. Experimental results show that the control strategy is effective.

Reference Input Generation for High Speed Coordinated Motion of a Two Axis System

1991 ◽  
Vol 113 (1) ◽  
pp. 67-74 ◽  
Author(s):  
J. Butler ◽  
B. Haack ◽  
M. Tomizuka
Keyword(s):  
Tracking Control ◽  
High Speed ◽  
Actuator Saturation ◽  
Phase Error ◽  
Smooth Curve ◽  
Order System ◽  
Positioning System ◽  
Reference Trajectories ◽  
Reference Input ◽  
Zero Phase

A method for generating two-dimensional reference trajectories to be followed by a linear second-order system under feedforward/feedback control is proposed. A differential equation is derived which assigns tracking velocity and tangential tracking acceleration as functions of time in such a way to allow high speed motion through an arbitrary smooth curve while guaranteeing the absence of actuator saturation. A method for using preview information for motion along curves with corners is also presented. The results are verified by simulation of a two axis cartesian positioning system under discrete time zero phase error tracking control.

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