Adaptive nonlinear position control in a permanent magnet linear motor with a flexible load

Authors:
Hassan Yousefi;Markus Hirvonen;Heikki Handroos
Affiliations:
Lappeenranta University of Technology, Finland;Lappeenranta University of Technology, Finland;Lappeenranta University of Technology, Finland
Venue:
CA '07 Proceedings of the Ninth IASTED International Conference on Control and Applications
Year:
2007

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Abstract

In the paper a nonlinear load control method is developed and implemented for a permanent magnet linear synchronous motor (PMLSM) with a flexible load. The purpose of the controller is to track a flexible load to the desired position reference as fast as possible and without awkward oscillation. The control method is based on an adaptive backstepping algorithm whose stability is ensured by the Lyapunov stability theorem. The states of the system needed in the controller are estimated by using the Kalman filter. The proposed controller is implemented and tested in a linear motor test drive and responses are presented.