A Specific Methodology of Creep Compensation for piezoelectric Actuators by Open-loop control

Abstract : Piezoelectric actuators exhibit creep behavior in open-loop operation, which may lead to unaffordable errors in high precision static positioning systems. An inversion-based compensation strategy by open-loop control is presented for reducing creep effect. The approach utilizes a nonlinear viscoelastic model to portray creep phenomenon, which consists of a linear spring, a nonlinear dashpot and a series of nonlinear Voigt elements. It is shown that for the presented creep model the step responses are very similar to the piezoelectric actuators. In order to compensate creep effect, a concept of voltage relaxation in piezoelectric actuators is proposed. And the voltage relaxation model tantamount to the inverse creep model is derived using a PID closed-loop control system. Experimental results prove that, by insertion of voltage relaxation model in open-loop operation, creep effect is attenuated markedly in piezoelectric actuators.
Complete list of metadatas

Cited literature [12 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01851680
Contributor : Open Archive Toulouse Archive Ouverte (oatao) <>
Submitted on : Monday, July 30, 2018 - 4:14:24 PM
Last modification on : Tuesday, October 22, 2019 - 5:20:43 PM
Long-term archiving on : Wednesday, October 31, 2018 - 2:01:12 PM

File

Bundinger_6640.pdf
Files produced by the author(s)

Identifiers

Citation

Xuan Wang, Valérie Pommier-Budinger, Yves Gourinat. A Specific Methodology of Creep Compensation for piezoelectric Actuators by Open-loop control. International Conference on Mechanical Engineering, Materials and Energy (ICMEME 2012), Oct 2012, Dalian, China. pp.141-145, ⟨10.4028/www.scientific.net/AMM.281.141⟩. ⟨hal-01851680⟩

Share

Metrics

Record views

40

Files downloads

20