IMC-based feedforward control of a piezoelectric tube actuator

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dc.contributor.authorMohammadzaheri, M.
dc.contributor.authorGrainger, S.
dc.contributor.authorKasaee Kopaei, M.
dc.contributor.authorBazghaleh, M.
dc.contributor.conferenceInternational Conference on Intelligent Sensors, Sensor Networks and Information Processing (8th : 2013 : Melbourne, Australia)
dc.contributor.editorPalaniswami, M.
dc.contributor.editorLeckie, C.
dc.contributor.editorKanhere, S.
dc.contributor.editorGubbi, J.
dc.date.issued2013
dc.description.abstractThis article addresses sensorless control of a piezoelectric tube actuator to avoid the expense and practical limits of displacement sensors in nanopositioning. Three electrical signals have been used to estimate displacement: the piezoelectric voltage, the induced voltage and the sensing voltage. In this work, the piezoelectric voltage was employed to estimate displacement which does not require drift removal like the sensing voltage and does not suffer from a time lag respect to displacement like the induced voltage. This signal is the actuating signal at the same time, so the sensorless control system is feedforward. It was shown the relationship between the piezoelectric actuator and displacement is nearly linear at the designated operation area: excitation of the tube by triangular voltage functions with the magnitude up to 60V and the frequency up to 60Hz. Therefore, Internal Model Control (IMC) was employed to design this feedforward controller based on a second order linear discrete model which maps the piezoelectric voltage into displacement. The performance of the proposed feedforward controller has been compared with a well-tuned feedforward P-action controller and a remarkable improvement has been observed.
dc.description.statementofresponsibilityMorteza Mohammadzaheri, Steven Grainger, Mehdi Kasaee Kopaei, Mohsen Bazghaleh
dc.identifier.citation2013 IEEE Eighth International Conference on Intelligent Sensors, Sensor Networks and Information Processing, 2-5 April 2013, Melbourne, Australia / M. Palaniswami C. Leckie S. Kanhere J. Gubbi (eds.): pp.357-361
dc.identifier.doi10.1109/ISSNIP.2013.6529816
dc.identifier.isbn9781467355018
dc.identifier.orcidGrainger, S. [0000-0003-4664-7320]
dc.identifier.urihttp://hdl.handle.net/2440/79015
dc.language.isoen
dc.publisherIEEE
dc.publisher.placeCD
dc.rights© 2013 IEEE
dc.source.urihttps://doi.org/10.1109/issnip.2013.6529816
dc.titleIMC-based feedforward control of a piezoelectric tube actuator
dc.typeConference paper
pubs.publication-statusPublished

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