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https://doi.org/10.1016/j.isatra.2012.01.002
Title: | SVD-based Preisach hysteresis identification and composite control of piezo actuators | Authors: | Liu, L. Tan, K.K. Chen, S.-L. Huang, S. Lee, T.H. |
Keywords: | Piezo actuator Preisach hysteresis Preisach-based inversion SVD |
Issue Date: | May-2012 | Citation: | Liu, L., Tan, K.K., Chen, S.-L., Huang, S., Lee, T.H. (2012-05). SVD-based Preisach hysteresis identification and composite control of piezo actuators. ISA Transactions 51 (3) : 430-438. ScholarBank@NUS Repository. https://doi.org/10.1016/j.isatra.2012.01.002 | Abstract: | In this paper, the singular value decomposition (SVD) based identification and compensation of the hysteretic phenomenon in piezo actuators are addressed using a Preisach model. First, this paper presents an SVD-based least squares algorithm and a revision approach of the identification through updating the SVD. With the identified parameters and a log of the memory curve, a Preisach-based inversion compensator is constructed which is complemented with a feedback controller to address the inevitable and residual modeling errors. Experimental results are furnished for both the identification and compensation approaches. The Preisach-based feedforward controller significantly improves the tracking performance and reduces the root-mean-square (RMS) tracking error of a PID controller by 76.7% and 89% at 1 Hz and 25 Hz, respectively. With the proposed composite controller, the percent-RMS errors at 1 Hz and 25 Hz are reduced to 0.035% and 0.31%, respectively. © 2012 ISA. Published by Elsevier Ltd. All rights reserved. | Source Title: | ISA Transactions | URI: | http://scholarbank.nus.edu.sg/handle/10635/83129 | ISSN: | 00190578 | DOI: | 10.1016/j.isatra.2012.01.002 |
Appears in Collections: | Staff Publications |
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