Abstract
The good control performance of the permanent magnet linear synchronous motor (LSM) drive system is very difficult to achieve using linear controller because of uncertainty effects, such as ending-fictitious force. A backstepping approach is proposed to control the motion of the LSM drive system. With the proposed backstepping control system, the mover position of the LSM drive achieves good transient control performance and robustness. Although favorable tracking responses can be obtained by the backstepping control system, the chattering in the control effort is critical because of the large control gain. Because there are many nonlinear and time-varying uncertainties in the LSM drive systems, the nonlinear backsteping control system, which an adaptive modified recurrent Laguerre orthogonal polynomial neural network (NN) is used to estimate uncertainty, is thus proposed to reduce the chattering in the control effort and thereby enhance the robustness of the LSM drive system. In addition, the on-line parameter training methodology of the modified recurrent Laguerre orthogonal polynomial NN is based on the Lyapunov stability theorem. Furthermore, two optimal learning rates of the modified recurrent Laguerre orthogonal polynomial NN are derived to accelerate parameter convergence. Finally, comparison of the experimental results of the present study demonstrates the high control performance of the proposed control scheme.
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15 February 2021
An Erratum to this paper has been published: https://doi.org/10.1007/s12555-021-9401-z
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Recommended by Associate Editor Sing Kiong Nguang under the direction of Editor Ju Hyun Park. This work was supported by the Ministry of Science and Technology Grant MOST 104-2221-E-239-011 in Taiwan, R.O.C. The author gratefully acknowledges financial support from Ministry of Science and Technology grant MOST 104-2221-E-239-011 in Taiwan, ROC.
Chih-Hong Lin received the B.S. and M.S. degrees in Electrical Engineering from National Taiwan University of Science and Technology, Taipei, Taiwan, R.O.C., and the Ph.D. degree in Electrical Engineering from Chung Yuan Christian University, Chung Li, Taiwan, R.O.C., in 1989, 1991, and 2001, respectively. He is currently a Professor in Electrical Engineering, National United University, Miaoli, Taiwan, R.O.C. His research interests include power electronics, motor servo drives and intelligent control.
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Lin, CH. RETRACTED ARTICLE: Nonlinear backstepping control design of LSM drive system using adaptive modified recurrent Laguerre orthogonal polynomial neural network. Int. J. Control Autom. Syst. 15, 905–917 (2017). https://doi.org/10.1007/s12555-015-0401-8
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DOI: https://doi.org/10.1007/s12555-015-0401-8