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Comprehensive compensation of dynamic hysteresis and creep for piezoelectric actuator

Author(s): ORCID

ORCID
Medium: journal article
Language(s): English
Published in: Smart Materials and Structures, , n. 6, v. 33
Page(s): 065045
DOI: 10.1088/1361-665x/ad4e7d
Abstract:

This paper addresses the modeling of dynamic hysteresis and creep in piezoelectric actuators, and employs feedforward open-loop control based on inverse models to compensate for hysteresis and creep phenomena. The comprehensive model consists of quasi-dynamic and dynamic components. The quasi-dynamic model combines the quasi-dynamic Prandtl–Ishlinskii (PI) model with an PI-based linear time-invariant model, while the dynamic part utilizes the auto-regressive exogenous model. The model accurately describes creep and dynamic hysteresis with modeling errors of less than 0.01 μm and 0.14 μm, respectively. The inversion of the comprehensive model has been proven to exhibit unique convergence. Under inverse feedforward control, the improvement in dynamic hysteresis and hysteresis with creep can be achieved at 94% and 83%, respectively. The comprehensive model proposed in this paper accurately describes the dynamic hysteresis and creep phenomena in piezoelectric actuators and realizes open-loop compensation control, achieving precise actuation of piezoelectric actuators.

Structurae cannot make the full text of this publication available at this time. The full text can be accessed through the publisher via the DOI: 10.1088/1361-665x/ad4e7d.
  • About this
    data sheet
  • Reference-ID
    10783874
  • Published on:
    20/06/2024
  • Last updated on:
    20/06/2024
 
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