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Title: Precision motion control with a high gain disturbance compensator for linear motors
Authors: Tan, K.K. 
Zhao, S. 
Keywords: Disturbance compensator
Linear motors
Motion control
Issue Date: Jul-2004
Citation: Tan, K.K.,Zhao, S. (2004-07). Precision motion control with a high gain disturbance compensator for linear motors. ISA Transactions 43 (3) : 399-412. ScholarBank@NUS Repository.
Abstract: In this paper, we address the problem relating to the precision control of permanent magnet linear motors to track repeated motion trajectories. A high gain disturbance compensator is developed to improve the control performance degraded due to the presence of significant disturbances. An inverse gain of the overall system model is used to set up a disturbance observer. The observed disturbance is then used to generate a "knocker" signal, to be augmented to the control signal, which can provide the additional energy necessary to overcome the effects of the disturbances. A learning scheme is used to adjust the knocker signal iteratively over the repeated cycles. Simulation and experimental results are furnished to demonstrate the effectiveness of the proposed control scheme. © 2004 ISA - The Instrumentation, Systems, and Automation Society.
Source Title: ISA Transactions
ISSN: 00190578
Appears in Collections:Staff Publications

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