Tracking Control of PZT-Driven Compliant Precision Positioning Micromanipulator

Zhigang Wu, Min Chen, Ping He, Heng Li, Qi Zhang, Xingzhong Xiong, Hao Yang Mi, Zuxin Li, Yangmin Li

Research output: Journal article publicationJournal articleAcademic researchpeer-review

3 Citations (Scopus)

Abstract

This paper focuses on improving tracking performance of totally uncoupled compliant micromanipulator based on robust control method of elliptical hysteresis model. The hysteresis model and hysteresis compensation model for proposed mechanism based on Piezoelectric transducer (PZT) are established by using elliptical model method. The values of elliptical hysteresis model parameters are identified by simulating method with different frequencies of control input. The uncertainty model is also established, the values of corresponding estimated parameters are conformed by experiment method. Based on the uncertainty model and elliptical hysteresis model, the robust tracking control method is presented and utilized to evaluate the tracking performance of proposed mechanism under inputting different tracking curves. The proposed method can accurately control the output displacement and improve tracking performance of this mechanism, which are validated and carried out by using experimental studies. Additionally, the coupling errors between two directions are kept within 0.14% and the tracking errors for different curves are within 2.5%.

Original languageEnglish
Article number9136671
Pages (from-to)126477-126487
Number of pages11
JournalIEEE Access
Volume8
DOIs
Publication statusPublished - 8 Jul 2020

Keywords

  • Elliptic model
  • micro/nano manipulator
  • positioning tracking
  • robust control

ASJC Scopus subject areas

  • Computer Science(all)
  • Materials Science(all)
  • Engineering(all)

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