Hysteresis compensation in piezoelectric actuator positioning control based on the uncertainty and disturbance estimator

Jinhao Chen, Beibei Ren, Qing Chang Zhong

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

Robust and precise control of piezoelectric actuators is quite challenging due to the existence of strong hysteresis nonlinearities. In this paper, a control strategy is proposed based on the uncertainty and disturbance estimator (UDE) to improve the performance of the positioning control of piezoelectric actuators. Compared to the existing hysteresis inversion based or other robust control strategies, the UDE-based controller can achieve excellent positioning precision without the knowledge of the bound and shape of hysteresis. Simulation results are presented to illustrate the effectiveness of the UDE-based controller, where the system dynamics of the piezoelectric actuator are characterized by a second order linear system preceded by a symmetric or an asymmetric generalized Prandtl-Ishlinskii (GPI) input hysteresis model. The extraordinary capability of the UDE-based controller is further demonstrated on other smart material-based actuators, e.g., magnetostrictive, shape memory alloys (SMA), where the hysteresis is characterized by a saturated GPI model.

Original languageEnglish
Title of host publicationACC 2015 - 2015 American Control Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2537-2542
Number of pages6
ISBN (Electronic)9781479986842
DOIs
StatePublished - Jul 28 2015
Event2015 American Control Conference, ACC 2015 - Chicago, United States
Duration: Jul 1 2015Jul 3 2015

Publication series

NameProceedings of the American Control Conference
Volume2015-July
ISSN (Print)0743-1619

Conference

Conference2015 American Control Conference, ACC 2015
Country/TerritoryUnited States
CityChicago
Period07/1/1507/3/15

Keywords

  • Piezoelectric actuator
  • generalized Prandtl-Ishlinskii (GPI)
  • hysteresis
  • robust control
  • uncertainty and disturbance estimator (UDE)

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