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An adaptive control method for magnetostrictive transducers with hysteresis

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2 Author(s)
Nealis, J.M. ; Dept. of Math., North Carolina State Univ., Raleigh, NC, USA ; Smith, R.C.

Addresses the development of an adaptive control strategy for regulating the output of a prototypical magnetostrictive transducer. The application is a generalization of an industrial process in which the magnetostrictive transducer is used to drive a cutting head in a high speed, high accuracy mode of operation. To attain the required stroke and force requirements, the transducer must operate in a regime in which the relation between input currents and output strains or forces exhibits significant hysteresis and constitutive nonlinearities including saturation effects. A variety of techniques for modeling the hysteresis and transducer dynamics are discussed and a model reference adaptive control (MRAC) strategy based on a Preisach model is developed. The performance of the control method is illustrated through a numerical example

Published in:

Decision and Control, 2001. Proceedings of the 40th IEEE Conference on  (Volume:5 )

Date of Conference:

2001