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This paper deals with the Jiles-Atherton model for hysteresis effects and its inversion as well as its extension for the reproduction of force-current hysteresis loops. An identification procedure for the model parameters is presented for a given solenoid actuator. A simplified hysteresis compensation algorithm was implemented on a 16-bit Digital Signal Controller. The real-time hysteresis compensation quality both for constant and variable air gap lengths was first investigated by means of an open-loop force controller for a proportional solenoid. Finally a closed-loop position controller with hysteresis compensation for an electromagnet, which is part of a magnetic bearing system, is presented. Experimental results gained at the test rigs are shown and evaluated.

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Booktitle: Proceedings of ISMB10