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Modelling, identification, and compensation of fractional-order creep in frequency domain for piezoactuators

Research output: Contribution to journalArticlepeer-review

Abstract

Unlike traditionally studied in time domain, the creep in a piezoelectric actuator is studied in frequency domain. It is modelled as a fractionalorder integrator, identified in frequency domain, and compensated for by connecting with a fractional-order differentiator in serial. It is demonstrated that identification and compensation in frequency domain are much simpler to execute than that in time domain. Experimental results validate the effectiveness of the proposed algorithm and the creep non-linearity reduces by greater than 80%.

Original languageEnglish
Pages (from-to)1444-1445
Number of pages2
JournalElectronics Letters
Volume52
Issue number17
DOIs
StatePublished - 18 Aug 2016

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