scholarly journals Linear motor motion control using a learning feedforward controller

1997 ◽  
Vol 2 (3) ◽  
pp. 179-187 ◽  
Author(s):  
G. Otten ◽  
T.J.A. de Vries ◽  
J. van Amerongen ◽  
A.M. Rankers ◽  
E.W. Gaal
Keyword(s):  
Motion Control ◽  
Linear Motor ◽  
Feedforward Controller

Development of Semicircular Tubular Core-less Linear Motor and Its Motion Control

2015 ◽  
Vol 135 (3) ◽  
pp. 246-257 ◽  
Author(s):  
Mototsugu Omura ◽  
Tomoyuki Shimono ◽  
Yasutaka Fujimoto
Keyword(s):  
Motion Control ◽  
Linear Motor

scholarly journals Adaptive Feedforward Control of a Pressure Compensated Differential Cylinder

2020 ◽  
Vol 10 (21) ◽  
pp. 7847
Author(s):  
Konrad Johan Jensen ◽  
Morten Kjeld Ebbesen ◽  
Michael Rygaard Hansen
Keyword(s):  
Control System ◽  
Root Mean Square ◽  
Motion Control ◽  
Experimental Verification ◽  
Feedforward Control ◽  
Position Error ◽  
Mean Square ◽  
Model Uncertainties ◽  
Feedforward Controller ◽  
Adaptive Feedforward

This paper presents the design, simulation and experimental verification of adaptive feedforward motion control for a hydraulic differential cylinder. The proposed solution is implemented on a hydraulic loader crane. Based on common adaptation methods, a typical electro-hydraulic motion control system has been extended with a novel adaptive feedforward controller that has two separate feedforward states, i.e, one for each direction of motion. Simulations show convergence of the feedforward states, as well as 23% reduction in root mean square (RMS) cylinder position error compared to a fixed gain feedforward controller. The experiments show an even more pronounced advantage of the proposed controller, with an 80% reduction in RMS cylinder position error, and that the separate feedforward states are able to adapt to model uncertainties in both directions of motion.

Learning Enhanced Motion Control of Permanent Magnet Linear Motor

1998 ◽  
Vol 31 (27) ◽  
pp. 359-364 ◽  
Author(s):  
K.K. Tan ◽  
T.H. Lee ◽  
H.F. Dou ◽  
S.Y. Lim
Keyword(s):  
Permanent Magnet ◽  
Motion Control ◽  
Linear Motor ◽  
Permanent Magnet Linear Motor
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