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Deep Learning for Identifying Hysteresis Models of Piezoceramic Actuators in the Linear Frame

  • Harbin Institute of Technology

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

Abstract

Piezoceramic actuators have been already applied in precision positioning in terms of simple and compact structure, free from noise, and high theoretical positioning resolution. However, the hysteresis characteristic limits the further improvement of positioning accuracy. Nowadays neural networks (NNs) have revolutionized progress in the identification and global linearization tasks, which makes it potential to employ deep learning in identifying hysteresis model of piezoceramic actuators in the linear frame. This paper aims at achieving the identification of the hysteresis model by means of NNs. Based on the Preisach model, datasets are obtained in Matlab. Identification of nonlinear coordinates is accomplished by the auto-encoder afterwards. As a result, weights of the various network branches are computed. Comparing the hysteresis model displacement output with the NNs reconstruction, it is found that the curves are basically consistent. The experimental results confirm the correctness of this method, which is of great significance for analysis and control of nonlinear systems.

Original languageEnglish
Title of host publicationProceedings of the 2019 14th Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2019
EditorsJinxi Liu, Xue-Qian Fang, Guoquan Nie
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728152530
DOIs
StatePublished - Nov 2019
Event14th Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2019 - Shijiazhuang, China
Duration: 1 Nov 20194 Nov 2019

Publication series

NameProceedings of the 2019 14th Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2019

Conference

Conference14th Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2019
Country/TerritoryChina
CityShijiazhuang
Period1/11/194/11/19

Keywords

  • Neural networks
  • Piezoceramic actuators
  • Precision positioning
  • Preisach model

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